Brakes Patents (Class 188)
- Train (Class 188/3R)
- Wheel and ground (Class 188/4R)
- Ground-engaging (Class 188/5)
- Wagon (Class 188/9)
- Independent wheel (Class 188/16)
- Hub or disk (Class 188/17)
- Cart (Class 188/19)
- Children's carriages (Class 188/20)
- Truck (Class 188/21)
- Velocipede (e.g., bicycle, etc.) (Class 188/24.11)
- Clasp (Class 188/28)
- Top shoes (Class 188/29)
- One-way (Class 188/30)
- Positive lock (Class 188/31)
- On ground (Class 188/32)
- Railway (Class 188/33)
- Braking torque regulators (Class 188/2A)
- Bowdin wire-operated (Class 188/2D)
- Wheelchair brakes (Class 188/2F)
- Frictional and positive (Class 188/68)
- Positive lock (Class 188/69)
- Axially and transversely movable (Class 188/70R)
- Axially movable brake element or housing therefor (Class 188/71.1)
- Transversely movable (Class 188/74)
- Rotary shoes (Class 188/80)
- One-way brakes (Class 188/82.1)
- Continuous (Class 188/83)
- Fixed brake (Class 188/84)
- Intermittent (Class 188/85)
- Using magnetic flux (Class 188/267)
- Electroviscous or electrorheological fluid (Class 188/267.1)
- Magnetic fluid or material (e.g., powder) (Class 188/267.2)
- Motion damped from condition (e.g., bump, speed change) detected outside of retarder (Class 188/266.1)
- Piezoelectric (Class 188/266.7)
- With failure or malfunction detection (Class 188/266.8)
- Using yieldable or fluent solid or semisolid (Class 188/268)
- Using diverse fluids (Class 188/269)
- Operating against ambient atmosphere (Class 188/270)
- Combined with surface-friction brake (Class 188/271)
- Combined with mechanism retarded by brake (Class 188/272)
- With heat exchanger (Class 188/274)
- With fluid regulated in response to inertia of valve member (Class 188/275)
- With means compensating for change in temperature or viscosity (Class 188/276)
- Relative speed of thrust member or fluid flow (Class 188/280)
- Resistance alters relative to direction of thrust member (e.g., high resistance in one direction, low in the other) (Class 188/281)
- Piston having a restrictable opening (e.g., apertured plate) in a fixed volume chamber (Class 188/283)
- Position of thrust member relative to chamber (Class 188/284)
- Using a rotary-type fluid damper (Class 188/290)
- Having a thrust member with a variable volume chamber (e.g., coaxial or telescoping tubes, compensating reservoir) (Class 188/297)
- Valve structure or location (Class 188/322.13)
- Including seal or guide (Class 188/322.16)
- Cylinder structure (Class 188/322.19)
- Thrust member or piston structure (Class 188/322.22)
- Including protective shield for retarder (Class 188/322.12)
- Including means connecting thrust member to load (Class 188/321.11)
- Controlled by an operator (e.g., vehicle driver) remote from retarder (Class 188/299.1)
- With means for locking parts together temporarily (Class 188/300)
- Using viscosity of fluid medium (Class 188/322.5)
