Single Wheel Patents (Class 298/3)
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Patent number: 11878726Abstract: A handcart may include a chassis unit and a container unit configured to be detachably attached to the chassis unit. The chassis unit may include a front wheel unit rotatably supporting a front wheel; a rear wheel unit rotatably supporting a rear wheel; a chassis frame extending in a front-rear direction and supporting the front and rear wheel units; and a prime mover configured to rotate at least one of the front wheel and the rear wheel as a drive wheel. The container unit may be selected from a group including at least a first container unit and a second container unit. The first container unit may include a first container and a first container frame extending in the front-rear direction and supporting the first container. The second container unit may include a second container and a second container frame extending in the front-rear direction and supporting the second container.Type: GrantFiled: August 6, 2020Date of Patent: January 23, 2024Assignee: MAKITA CORPORATIONInventors: Yoshinori Shibata, Susumu Kato, Tomonobu Nashimoto, Kohei Oishi, Yasuo Ifuku
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Patent number: 11834087Abstract: A handcart may include a chassis unit and a container unit configured to be detachably attached to the chassis unit. The chassis unit may include a front wheel unit rotatably supporting a front wheel; a rear wheel unit rotatably supporting a rear wheel; a chassis frame extending in a front-rear direction and supporting the front and rear wheel units; and a prime mover configured to rotate at least one of the front wheel and the rear wheel as a drive wheel. The container unit may be selected from a group including at least a first container unit and a second container unit. The first container unit may include a first container and a first container frame extending in the front-rear direction and supporting the first container. The second container unit may include a second container and a second container frame extending in the front-rear direction and supporting the second container.Type: GrantFiled: August 6, 2020Date of Patent: December 5, 2023Assignee: MAKITA CORPORATIONInventors: Yoshinori Shibata, Susumu Kato, Tomonobu Nashimoto, Kohei Oishi, Yasuo Ifuku
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Patent number: 11608100Abstract: A wheelbarrow braking assembly for slowing or stopping a wheelbarrow includes a brake rotor that is attachable to a wheel of a wheelbarrow. A caliper is mountable to the wheelbarrow such that the caliper is aligned with the brake rotor for slowing or stopping the wheelbarrow. A brake handle is provided that is mountable adjacent to an end of a respective rail of the wheelbarrow. In this way the brake handle is accessible to the user when the user is maneuvering the wheelbarrow. The brake handle is in mechanical communication with the caliper and the caliper is engaged when the brake handle is squeezed.Type: GrantFiled: October 6, 2020Date of Patent: March 21, 2023Inventor: Michael De Luca
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Patent number: 11220280Abstract: A landscaping cart is provided. The landscaping cart has a barrow portion operatively associated with a cart frame having wheels. The cart frame provides an open configuration dimensioned and adapted to accommodate the barrow portion in a nested condition so that the barrow portion can slide and rotate therein. The barrow portion provides an external spring mechanism that enables the barrow portion to move from a supported position on top of the cart frame to the nested position for the process of urging lawn debris into the barrow portion. The supported position facilitates upright transportation of the lawn debris retained in the barrow portion. The cart frame may provide a support bar for supporting the barrow portion in the nested condition. A bucket portion for compacting the lawn debris connects to a distal end of the barrow portion.Type: GrantFiled: January 31, 2020Date of Patent: January 11, 2022Inventor: Brian Patrick Daly, Sr.
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Patent number: 11084515Abstract: A wheelbarrow having a load carrying body supported on a chassis. An electrically powered axle assembly is located at one end of the chassis and has a pair of wheels disposed at opposite sides of the axle assembly. The chassis includes a pair of side plates that extend downwardly to provide legs and a cross member extending between the side plates to maintain them in spaced relationship. A shelf extends between the side plates and is spaced below the underside of the body to provide a cavity to receive a battery. A pair of handles is secured to the side plates, one on each side of the body to transfer loads from the handles in to the chassis and the body is secured to the handles and side plates at a common connection.Type: GrantFiled: October 23, 2019Date of Patent: August 10, 2021Assignee: 9875549 CANADA INC.Inventors: Terry Dettner, Steve Johnson
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Patent number: 10112635Abstract: The present invention provides a freight cart comprising a carriage as well as a bucket and a handle which are respectively located on front and rear sides of the carriage, the bucket is pivotally connected to the carriage, a double connecting rod assembly for driving the bucket to rotate relative to the carriage is also provided on the carriage, the double connecting rod assembly is pivotally connected to the bucket and the carriage respectively and forms a planar linkage mechanism together with the bucket and the carriage, the handle is transmissively connected to the double connecting rod assembly, and the handle is operated to make the planar linkage mechanism drivable to move the bucket relative to the carriage and switch the bucket between a storage position and a discharge position.Type: GrantFiled: September 1, 2017Date of Patent: October 30, 2018Inventor: Xuancong Jin
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Patent number: 9623778Abstract: The apparatuses and methods disclosed herein may be pushed by hand or pulled by a motor vehicle. Thus, implementations of the transport device disclosed herein may have functions akin to a wheelbarrow or a dumping trailer, yet may provide easier and/or more efficient transportation and dumping functions over prior art wheelbarrows and dumping trailers. Implementation of the transport device disclosed herein also may be easier to push over an elevation or up a hill. Furthermore, in some implementations, the transport device disclosed herein includes four wheels and therefore can function like a cart. Still further, in some implementations, the transport device disclosed herein can have the functions of a wagon. In some implementations, the transport device includes a work bench.Type: GrantFiled: March 26, 2015Date of Patent: April 18, 2017Inventor: Charles Dwight Jarvis
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Patent number: 9463730Abstract: A two-wheeled wheelbarrow, cart or transporter has an assisted lift dumping barrow providing continuously biased forward tilting of the barrow relative to the frame thereof through two gas springs while maintaining the legs and wheels on the ground. A first gas spring is connected to a right side handle of the frame of the wheelchair and to a right rear underside of the barrow. A second gas spring is connected to a left side handle of the frame of the wheelbarrow and to a left rear underside of the barrow. Each gas spring provides a continuous bias or pressure against the rear of the barrow for assisting in pivoting and lifting the rear of the barrow for dumping its contents. A latch keeps the barrow from raising until released. A separate rear barrow handle aids in overcoming bias of the gas springs for lowering the rear of the barrow.Type: GrantFiled: February 1, 2016Date of Patent: October 11, 2016Inventors: Brian Romas, John Lynn
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Patent number: 9327747Abstract: The apparatuses and methods disclosed herein may be pushed by hand or pulled by a motor vehicle. Thus, implementations of the transport device disclosed herein may have functions akin to a wheelbarrow or a dumping trailer yet may provide easier and/or more efficient transportation and dumping functions over prior art wheelbarrows and dumping trailers. Implementation of the transport device disclosed herein also may be easier to push over an elevation or up a hill. Furthermore, in some implementations, the transport device disclosed herein includes four wheels and therefore can function like a cart. Still further, in some implementations, the transport device disclosed herein can have the functions of a wagon. In some implementations, the transport device includes a work bench.Type: GrantFiled: May 20, 2013Date of Patent: May 3, 2016Inventor: Charles Dwight Jarvis
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Patent number: 9248850Abstract: A wheelbarrow has an assisted lift dumping barrow that provides continuously biased forward tilting of the barrow relative to the frame of the wheelbarrow through two gas springs while maintaining the legs and wheel thereof on the ground. A first gas spring is connected to a right side handle of the frame of the wheelchair and to a right rear underside of the barrow. A second gas spring is connected to a left side handle of the frame of the wheelbarrow and to a left rear underside of the barrow. Each gas spring provides a continuous bias or pressure against the rear of the barrow for assisting in pivoting and lifting the rear of the barrow for dumping its contents. A latch keeps the barrow from raising until released. A separate rear barrow handle aids in overcoming bias of the gas springs for lowering the rear of the barrow.Type: GrantFiled: November 18, 2014Date of Patent: February 2, 2016Inventors: Brian Romas, John Lynn
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Patent number: 9156487Abstract: A wheelbarrow that can transition from a conventional wheelbarrow configuration to a loading platform that places a wall of the carrier flat on the ground to facilitate placing an object or objects on it without requiring lifting, and then transition back to conventional Wheelbarrow configuration using mechanical advantage.Type: GrantFiled: March 14, 2015Date of Patent: October 13, 2015Inventor: Christopher Edward Blume
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Publication number: 20110260420Abstract: A unique system comprises five different devices combined into one to save cost, time, labor, and space. All the five different devices have on-the-fly shape-and-function-shifting capability for changing their shapes and functions and automatically locking them in the shapes and functions while they are in motion, to eliminate the needs for stopping, putting down, unlocking, adjusting, relocking, and picking up the system. The unique five-device-in-one system has multi-purpose shock absorbers, automatic multi-position locking device, utility-bag spreaders, quick-release multi-purpose container, and ground-level dustpan. The unique five-device-in-one system comprises the five following devices: 1) A wheelbarrow, 2) A wheel harvest-bag trash-bag caddy, 3) A wheel tool-refreshment caddy, 4) A dump truck, and 5) A hand truck. All the five different devices above of the system can change their shapes and functions while in motion and can function, simultaneously.Type: ApplicationFiled: April 22, 2011Publication date: October 27, 2011Inventor: Dee Volin
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Patent number: 7988181Abstract: A storage and work place apparatus used in conjunction with a wheelbarrow or similar item. The apparatus includes a housing having a bottom portion and a side portion extending outwardly to form an open chamber the bottom portion is intended to a lie atop a wheelbarrow a cover is used in conjunction with the open chamber and is hingedly or slidingly attached to the housing in order to extend laterally from the housing. At least a first leg attainably connects to the housing and extends outwardly to contact a ground surface adjacent the wheel barrow. At least a second leg is rotatable attached to the cover and also extends outwardly therefrom to support the cover above the ground surface when the leg contacts the ground surface.Type: GrantFiled: June 1, 2009Date of Patent: August 2, 2011Inventors: William Hand, Robert Howe
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Patent number: 7775531Abstract: The use of a pivotal coupling on a cart of the wheelbarrow type allows for a downwardly applied pressure to the user ends of the handles to tip the bucket to at least begin the dumping action of the cart. Following the initial downward pressure with the handles still elevationally displaced downward an upward lift applied to the user ends of the handles completes the dumping action of the cart. Use of multiple pivotal axises on the cart provide for an extremely efficient operation. Various enhancements are explained including locking of the orientation of the cart following the initial dump, wheel blocking to prevent rotation of the ground support wheel relative to the bucket during at least a portion of the final dumping action and stabilization enhancement to prevent lateral tipping of the cart during the final dumping action.Type: GrantFiled: November 19, 2007Date of Patent: August 17, 2010Inventor: Felton Zimmerman
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Patent number: 7562898Abstract: A storage and work place apparatus used in conjunction with a wheelbarrow or similar item. The apparatus includes an housing having a bottom portion and a side portion extending outwardly to form a open chamber the bottom portion is intended to a lie atop a wheelbarrow a cover is used in conjunction with the open chamber and is hinged attached to the housing in order to extend laterally from the housing. At least a first leg attainably connects to the housing and extends outwardly to contact a ground surface adjacent the wheel barrow. At least a second leg is rotatable attached to the cover and also extends outwardly therefrom to support the cover above the ground surface when the leg contacts the ground surface.Type: GrantFiled: October 18, 2007Date of Patent: July 21, 2009Inventors: Bill Hand, Robert Howe
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Patent number: 7547026Abstract: A wheelbarrow has a frame, having a top portion (12) and an undercarriage portion (14). There is an open topped vessel (15) mounted on the top portion (12) of the frame, and a pair of handle bars (16, 17) extending rearwardly and integrally from the top portion (12) of the frame. The wheelbarrow also has a pair of ground engagable legs (18, 19), and a front wheel (20) is connected to a front part of the undercarriage portion (14) of the frame, and a rear wheel (21) is connected to a rear part of the undercarriage portion (14) of the frame. The rear wheel (21) is aligned with the front wheel (20). There are pivot axis means (22, 24, 25) of the wheelbarrow for allowing the top portion (12) of the frame to pivot relative to the undercarriage portion (14) of the frame.Type: GrantFiled: April 19, 2006Date of Patent: June 16, 2009Inventor: Richard J. Morris
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Publication number: 20090102272Abstract: A storage and work place apparatus used in conjunction with a wheelbarrow or similar item. The apparatus includes an housing having a bottom portion and a side portion extending outwardly to form a open chamber the bottom portion is intended to a lie atop a wheelbarrow a cover is used in conjunction with the open chamber and is hinged attached to the housing in order to extend laterally from the housing. At least a first leg attainably connects to the housing and extends outwardly to contact a ground surface adjacent the wheel barrow. At least a second leg is rotatable attached to the cover and also extends outwardly therefrom to support the cover above the ground surface when the leg contacts the ground surface.Type: ApplicationFiled: October 18, 2007Publication date: April 23, 2009Inventors: Bill Hand, Robert Howe
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Patent number: 7464441Abstract: An apparatus that is engageable with a wheelbarrow for assisting a user in pushing such wheelbarrow. The apparatus comprises at least one mounting plate formed of a first predetermined material and having a first predetermined shape engageable with a predetermined portion of such wheelbarrow. A pivotally adjustable telescoping arm member is formed of a predetermined material and is engageable on a first end thereof with the at least one mounting plate. A sleeve member is engageable intermediate a first end and a second end thereof with a second end of the arm member. The sleeve member is formed as a unitary part of the arm member and is disposed at a predetermined angle thereof. An elongated rod member is rotatingly and adjustably engageable with an inner portion of the sleeve member and extends outwardly toward such user. A bicep cup member having a predetermined shape is engageable on a first side thereof with an end of the elongated rod member.Type: GrantFiled: October 24, 2007Date of Patent: December 16, 2008Inventor: Clifton Peach
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Patent number: 7448691Abstract: The present invention is directed to a payload bin assembly that is stably coupled to zero-turn and non-zero-turn mowers alike. In various embodiments, the payload bin assembly is comprised of a durable payload support frame having a first end and a second end. A payload bin is pivotally coupled proximate the first end of the payload support frame. The payload support frame is supported at its first and second ends by a wheel-based support assembly and a mower-based support assembly, respectively.Type: GrantFiled: February 25, 2005Date of Patent: November 11, 2008Assignee: KB Mowers, LLCInventor: Kenny M. Brooks
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Patent number: 7296807Abstract: The use of a pivotal coupling on a cart of the wheelbarrow type allows for a downwardly applied pressure to the user ends of the handles to tip the bucket to at least begin the dumping action of the cart. Following the initial downward pressure with the handles still elevationally displaced downward an upward lift applied to the user ends of the handles completes the dumping action of the cart. Use of multiple pivotal axises on the cart provide for an extremely efficient operation. Various enhancements are explained including locking of the orientation of the cart following the initial dump, wheel blocking to prevent rotation of the ground support wheel relative to the bucket during at least a portion of the final dumping action and stabilization enhancement to prevent lateral tipping of the cart during the final dumping action.Type: GrantFiled: February 16, 2005Date of Patent: November 20, 2007Inventor: Felton Zimmerman
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Patent number: 7234710Abstract: The present invention provides a manually powered drive assembly for a vehicle. A foot crank winds a helical torsion spring through a system of shafts and sprockets in a first direction. By releasing a brake applied to a wheel, or wheels, of the vehicle, the wound spring transfers a rotational movement from a spring shaft to a freewheel sprocket coaxially aligned with the axle supporting a wheel, so that the rotational movement upon the wheel assists a user in manually moving the vehicle. The drive assembly may be advantageously used with a wheelbarrow to assist in building up momentum for moving heavy loads.Type: GrantFiled: October 14, 2004Date of Patent: June 26, 2007Inventors: Nick C. Benton, Michael L. Gray
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Patent number: 7134676Abstract: The inventive wheelbarrow provides novel features that allow the wheelbarrow to remain level on uneven or sloping terrain when parked, thereby providing more stability.Type: GrantFiled: February 2, 2004Date of Patent: November 14, 2006Inventors: Seth Murph Capers, Jr., Seth Murphy Capers
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Patent number: 6908088Abstract: A wheelbarrow bumper for a wheelbarrow having a frame, a bin, and a wheel, the wheelbarrow bumper includes: a curved plate having a convexly curved outer surface and an inner surface; and, a first and a second side support members having a width and extending transversely from the curved plate, the first and the second support members each including an engaging portion adapted to connect to the frame of the wheelbarrow. The curved plate and the support members, as a whole, define a generally bracket-like cross-sectional configuration. Each engaging portion of the support members preferably includes an opening for receiving a clamping member to connect to the frame of the wheelbarrow.Type: GrantFiled: March 25, 2003Date of Patent: June 21, 2005Inventor: William Kurt Feick
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Patent number: 6886838Abstract: The use of a pivotal coupling on a cart of the wheelbarrow type allows for a downwardly applied pressure to the user ends of the handles to tip the bucket to at least begin the dumping action of the cart. Following the initial downward pressure with the handles still elevationally displaced downward an upward lift applied to the user ends of the handles completes the dumping action of the cart. Use of multiple pivotal axises on the cart provide for an extremely efficient operation. Various enhancements are explained including locking of the orientation of the cart following the initial dump, wheel blocking to prevent rotation of the ground support wheel relative to the bucket during at least a portion of the final dumping action and stabilization enhancement to prevent lateral tipping of the cart during the final dumping action.Type: GrantFiled: January 22, 2003Date of Patent: May 3, 2005Assignee: ZimmcoInventor: Felton Zimmerman
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Patent number: 6820880Abstract: The present invention provides a spring powered wheelbarrow with a manually powered drive assembly. A foot crank winds a spring through a system of shafts and sprockets in a first direction. By releasing a brake upon a front wheel of a wheelbarrow, the wound spring transfers a rotational movement from a spring shaft to a freewheel sprocket adjacent to the front wheel, the rotational movement upon the front wheel assisting a user in pushing the wheelbarrow.Type: GrantFiled: October 11, 2002Date of Patent: November 23, 2004Inventors: Nick Charles Benton, Michael Lee Gray
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Patent number: 6766997Abstract: A device for hanging implements comprising a hook member having two straight parallel arms with the first end of each arm joined by an arcuate section and with the opposite end of each arm extending at an angle with respect to its respective arm, and a generally flat base member for joining the hook to the implement.Type: GrantFiled: September 17, 2002Date of Patent: July 27, 2004Inventor: Kenneth G. Stewart, III
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Patent number: 6755478Abstract: A combined device is designed for multiple purposes including: hauling and dumping, bagging lawn and garden debris, and simultaneously carrying gardening tools and supplies. The device includes a wheelbarrow device with a container that lifts from its rear and flips forward from a horizontal position to beyond vertical about a pivot point elevated by supports or braces such that the combined device can remain level with the ground while it is being emptied and thereby the combined device can stably maintain a load of gardening tools and supplies.Type: GrantFiled: September 30, 2002Date of Patent: June 29, 2004Inventor: Kenneth H. Messinger-Rapport
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Publication number: 20040061372Abstract: A combined device designed for multiple purposes including: hauling and dumping, bagging lawn and garden debris, and simultaneously carrying gardening tools and supplies, comprising a wheelbarrow device (10) with a container means (11) that lifts from its rear and flips forward from a horizontal position to beyond vertical by means of an pivot point (EPP) elevated by supports or braces such that the combined device can remain level with the ground while it is being emptied and thereby the combined device can stably maintain a load of gardening tools and supplies.Type: ApplicationFiled: September 30, 2002Publication date: April 1, 2004Inventor: Kenneth H. Messinger-Rapport
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Patent number: 6554301Abstract: A rollbar support unit device to be assembled to a wheelbarrow. A mount is fastened to a front portion of a tray. A first leg having a first curvilinear portion which is positioned to curve outwardly from the front portion is connected to the mount. A second leg having a second curvilinear portion which is positioned to curve outwardly from the front portion is also connected to the second leg support connected to the first tray and second tray respectively. The rollbar support unit device is configured to pivot the wheelbarrow in a safe and smooth manner.Type: GrantFiled: July 12, 2001Date of Patent: April 29, 2003Assignee: Sterling Handling Equipment, Inc.Inventors: James Scott, Marilyn Scott, Kenneth Maio, Mark Sturm
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Patent number: 6409273Abstract: A tracked carrier(10) having a frame(6) and a handle(1) secured to the frame. The handle(1) has a proximal and a distal end thereto and may have a pair of downwardly depending support elements. The handle(1) has a brake lever(2) for controlling brakes mounted thereon. A first wheel(14) is secured to the distal end of the handle by frame elements and a pair of drive tracks secured to the proximal end of the handle by the frame elements. A drive engine(5) is mounted on the frame(6) and linked to the pair of drive tracks(16) by a drive mechanism. A throttle mechanism is operably engaged to the drive engine(5). A hydraulic pump(7) linked to an hydraulic drive motor. The hydraulic pump(7) is linked to a pair of drive track arm levers.Type: GrantFiled: June 18, 2001Date of Patent: June 25, 2002Inventor: Jeffery D. Campbell
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Patent number: 6213482Abstract: An add-on barrier for a wheelbarrow for expanding the volume capacity of the wheelbarrow, the barrier comprising a substantially rectangular baseless frame having substantially vertically disposed walls, the frame including a plurality of legs for mounting the frame over the wheelbarrow, the frame further including a plurality of integral hinged bag retainers for retaining a bag in an expanded volume formed by volume contributions of the wheelbarrow and the frame.Type: GrantFiled: August 7, 1997Date of Patent: April 10, 2001Assignee: ZAG Industries Ltd.Inventor: Zvi Yemini
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Patent number: 6099025Abstract: An adjustable wheelbarrow is provided including a basin, a wheel support assembly including at least one bar mounted on the basin and having a wheel rotatably mounted thereon, and a stand assembly including at least one foot depending from the basin. Next provided is a handle assembly including a pair of handle bars each with a first end pivotally mounted with respect to the basin and an adjustment mechanism including an adjustment plate fixedly coupled to the stand assembly. The adjustment mechanism further includes a locking arm with a T-shaped configuration including a horizontal rod rotatably mounted between the handle bars and a vertical rod having a first end fixedly coupled to the horizontal rod and a second end being adjustably engageable with the locking plate. As such, the handle bars of the handle assembly may be selectively angled with respect to the basin. As an option, a length of the handle bars may also be adjusted.Type: GrantFiled: November 19, 1998Date of Patent: August 8, 2000Inventor: Donald Paul Rohrs
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Patent number: 5810375Abstract: A wheelbarrow handle including a closed loop hand-grip. The hand-grip can be an integral portion of the handle, or retrofit to existing wheelbarrow handles by a mounting mechanism.Type: GrantFiled: June 26, 1997Date of Patent: September 22, 1998Assignee: Richard L. HoffarthInventors: Richard L. Hoffarth, Mark J. Hoffarth
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Patent number: 5799960Abstract: A wheelbarrow handle mechanism comprising a pair of rotating grippable handles. Mounted perpendicular to the standard lifting shaft of a wheelbarrow is an axle mechanism protruding inward. An elongated, cylindrical handle is affixed rotatingly about the axle mechanism, and has an external gripping surface and an internal rotating surface. The internal rotating surface contacts bearings or other friction reducing mechanisms to allow the handle to freely rotate about the axle.Type: GrantFiled: October 27, 1995Date of Patent: September 1, 1998Inventor: Eddie Charles Davis, Sr.
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Patent number: 5601298Abstract: An improved wheelbarrow is disclosed, comprising a wheel, a tray, a pair of handles, and a front guard, the improvement being in the handles and the front guard, in that each handle is provided with a roundish handlegrip including a first grip, round grip portion and second grip to facilitate an easier and safer forward dumping of load without switching handgrips, and in that the front guard facilitates a stabler forward dumping of load. The front guard may comprise at least one bar portion in parallel to the wheel axis or a curved plate. The front guard may alternatively comprise a pair of bar portions extending along the circumference of the wheel.Type: GrantFiled: September 18, 1995Date of Patent: February 11, 1997Assignee: Suntool Co., Ltd.Inventor: Yoshihisa Watanabe
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Patent number: 5433462Abstract: A collapsible flexible wheelbarrow comprises a wishbone shaped frame that supports a heavy weight cloth hopper. Attached to the nose of the wishbone frame is a wheel that is rotated and affixed out of the plane of the frame for use and into the plane of the frame for storage. Thus, with the cloth hopper the entire wheelbarrow can be collapsed substantially flat. A relatively rigid lip extends across the top edge of the hopper substantially between and adjacent the ends of the wishbone frame. The ends of the frame are formed with handgrips. With the handgrips resting on the ground, the lip also lies on the ground permitting debris to be easily swept into the hopper.Type: GrantFiled: February 18, 1994Date of Patent: July 18, 1995Inventor: Rodney J. Groleau
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Patent number: 5372376Abstract: The invention provides a foldable wheelbarrow (10.1) which comprises a load bin (12), a wheel (14) for supporting the wheelbarrow, and a connecting structure (16) which connects the wheel (14) to the load bin (12), the connecting structure (16) being displaceable with respect to the load bin. The connecting structure (16) is preferably pivotally displaceable with respect to the load bin (12) and may comprise first (16.1) with second (16.2) components, the wheel (14) being mounted on the first component (16.1) with the second component (16.2) being connected to the first component (16.1) at a first pivot connection (18). The second component (16.2) may be connected to the bin (12) at a second pivot connection (20).Type: GrantFiled: October 13, 1993Date of Patent: December 13, 1994Inventor: Anthony P. Pharaoh
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Patent number: 5346232Abstract: A cross member is mounted to and extends between the handleshafts of a wheelbarrow at a location intermediate the material carrying bin of the wheelbarrow and the handles which are grasped by the laborer whereby the laborer grasping the handles can place the front of his thigh against the cross member to exert a force on the wheelbarrow to initiate lifting and forward movement of the wheelbarrow using his thigh muscles to reduce any strain on the arms, shoulders and/or back of the laborer. The cross member is a flexible strap which has mounting assemblies that is adjustable in length to permit the cross member to be mounted on wheelbarrows having differing spacings between the handleshafts.Type: GrantFiled: April 8, 1993Date of Patent: September 13, 1994Inventor: Richard J. Bushon
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Patent number: 5256025Abstract: An improved handtruck having an unloader mechanism for assisting in the removal of cargo from the handtruck. The unloader mechanism utilizes a cargo support pivotally mounted at the lower end of the handtruck. The cargo support is designed so that it can be maintained in a latched position when transporting cargo and can be unlatched to pivot away from the handtruck when unloading cargo. A pusher structure may be operatively connected to said cargo support to facilitate the removal of cargo from said cargo support. The pivot action of the cargo support causes a force to be exerted on the cargo by the pusher structure which urges such cargo down an inclined plane formed by the cargo support, thereby removing the cargo from the handtruck.Type: GrantFiled: September 3, 1992Date of Patent: October 26, 1993Inventor: Gary Williamson
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Patent number: 5190351Abstract: A wheelbarrow has an enlarged wheel and a low center of gravity for transporting heavy loads. The enlarged wheel and low center of gravity increases the stability of the wheelbarrow. The wheelbarrow includes a payload bucket which is tiltable for dumping the payload. The bucket is mounted such that the dumping operation is behind the wheel of the wheelbarrow, whereby the dumping operation can be completed without substantially altering the center of gravity of the wheelbarrow, further enhancing the stability of the wheelbarrow when transporting heavy loads. The wheelbarrow bucket includes an arcuate or C-shaped bottom facilitating the dumping operation.Type: GrantFiled: January 27, 1992Date of Patent: March 2, 1993Inventor: Joe Klumpjan
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Patent number: 5153966Abstract: A multiple-grip lifting handle for a handle shaft of a wheelbarrow comprising a substantially straight base portion, a substantially C-shaped rear portion connected to and extending upwardly in a vertical plane from the base portion and a primary grip portion extending forwardly from the C-shaped portion and above the base portion so as to form a continuous key-hole shaped loop lying in a generally vertical plane. The base portion is disposed at about a 15.degree. acute angle from the primary grip portion with the apex of the angle being generated rearward of the C-shaped portion.Type: GrantFiled: July 11, 1991Date of Patent: October 13, 1992Inventor: Marvin C. Godwin
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Patent number: 5121970Abstract: A wheel barrow dump apparatus adapted to be installed on a conventional wheel barrow type device utilizing a hinged mounting for the bucket. The apparatus includes at least one catch arm and associated cross member, attached to the rear of the bucket. The catch arm limiting the pivoting travel of the bucket on the hinged mounting to the length of the catch arm.The invention also provides a method of dumping refuse collected in the wheel barrow bucket including: filling the bucket; transporting the wheel barrow to the dumping point; raising the wheel barrow handle; allowing the bucket to pivot on its hinged mounting until the cross members engage to the standard frame; allowing the refuse to spill from the bucket; lowering the wheel barrow handles causing the catch arms to lower the bucket until it settles on the standard frame.Type: GrantFiled: January 4, 1991Date of Patent: June 16, 1992Inventor: Charles J. Andersen
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Patent number: 5067737Abstract: A wheelbarrow includes a load box, a supporting wheel and a pair of handles for guiding the wheelbarrow. The wheelbarrow further includes a pair of curved dumping rods extending upward above said load box. The dumping rods each include a small wheel for rotating in a counter-clockwise direction which facilitates turning the wheelbarrow for emptying. A framework is attached to an underside of the load box for securing an axle for the supporting wheel. A support is attached to the framework forwardly of the supporting wheel for engaging the ground when the wheelbarrow is rotated for emptying. A stand, attached to the framework behind the wheel, supports the wheelbarrow when stationary.Type: GrantFiled: December 28, 1990Date of Patent: November 26, 1991Inventor: Bryon C. Broeske
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Patent number: 5040807Abstract: A combined wheelbarrow and beach chair apparatus (10) comprising pivotally attached framework units (11) and (12) having a flexible cargo unit (14) suspended between them and a pivoted wheel assembly unit (13) attached to one of the framework units (11) and provided with members to vary the angular orientation of the wheel assembly unit (13) relative to the framework units (11) (12) and, a removeable support unit (15) which will change the apparatus (10) from a chaise lounge/wheelbarrow configuration to a chair configuration.Type: GrantFiled: March 15, 1990Date of Patent: August 20, 1991Inventor: David E. Snover
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Patent number: 4951956Abstract: A hand grip assembly for a wheelbarrow handle shaft includes a handle having an elongate grip configured to be gripped by a hand along its length and along a grip axis. The handle is pivotally mounted on the handle shaft of the wheelbarrow for movement about a pivot axis which is oriented generally parallel to the support surface underlying the wheelbarrow and which is disposed closely adjacent to and generally perpendicular to the grip axis, approximately midway along the length of the grip.Type: GrantFiled: April 28, 1989Date of Patent: August 28, 1990Inventor: Larry W. Vittone
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Patent number: 4921305Abstract: In a wheelbarrow having a bin (1) for the load, a ground wheel (2) at a front end of the bin and a handle (3) at a rear end, the handle (3) has a cam shaped extension (7) which forms a leg for the bin rear end and which is mounted on a pivot (4) carried on the bin. The handle (3) can be released from its normal position and then pivoted forward in the direction of the wheel (2). This action causes rotation of the cam and the bin rear end is lowered to near ground level to allow easy loading of the bin. When loaded the handle (3) can be returned to its position at the bin rear end and the cam simultaneously lifts the bin and load. The load may then be carried and emptied as with a conventional wheelbarrow.Type: GrantFiled: October 11, 1988Date of Patent: May 1, 1990Inventor: Clive A. Steer
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Patent number: 4645225Abstract: A molded plastics enlargement insert for a wheelbarrow greatly increases the volumetric capacity thereof so that large quantities of leaves and other lightweight materials can be transported. The insert is formed in multiple sections to greatly facilitate shipment and storage of the product. The user can assemble the sections of the insert using common fasteners and can subsequently disassemble the insert.Type: GrantFiled: January 7, 1986Date of Patent: February 24, 1987Inventor: Mack W. Eubanks
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Patent number: 4471996Abstract: A load-carrying device comprises a frame adapted to support a load to be carried, and having front and rear end portions. A wheel is rotatably mounted to the frame and positioned at the front end portion for supporting same. The device of the invention further comprises elongated handle means pivotally connected to the rear end portion and frame support means connected to and displaceable with the handle means, the handle means being pivotally movable between a first position whereat the handle means extends rearwardly of the frame for carrying the load with the frame support means being disposed to support the rear end portion, and a second position whereat the frame support means is retracted from its supporting position. A releasable locking means is also provided for interlocking the handle means with the frame in the first position.Type: GrantFiled: September 14, 1982Date of Patent: September 18, 1984Inventor: Mario Primeau
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Patent number: 4270786Abstract: A dumping wheelbarrow capable of providing a forward tilt to the barrow while maintaining the legs of the wheelbarrow on the ground. The wheelbarrow has a frame which supports the barrow which frame has a wheel and a pair of legs together with a pair of extending handles. The barrow is pivoted at a forward barrow point and is caused to dump by the action of a hydraulic piston affixed at one end to the frame and at the other end to the bottom of the barrow.Type: GrantFiled: August 3, 1979Date of Patent: June 2, 1981Inventor: McKinley Mattox