Abstract: Filter apparatus for trapping particles suspended in gaseous fluid stream generally includes a first and a second electrode with a porous filter therebetween along with electrical contacts for applying a DC voltage across the first and second electrodes. A third electrode is provided and a frame is included for removeably supporting a porous filter, along with the first, second, and third electrodes in order to electrify, by induction, the third electrode with a voltage in the third electrode in order to increase trapping of the particles by the filter apparatus.

Abstract: A clog-resistant filter and method for extracting fine particulate contaminants, such as smoke, from a gaseous fluid stream, such as air, uses an induced voltage electrode to efficiently capture the contaminant particles in a filter material whose pores are many times larger than the diameter of the particles to be captured. The filter material is physically so configured to further enhance that interaction and is disposed between at least a pair of electrodes of opposite polarity.

Abstract: A clog-resistant filter for extracting fine particulate contaminants, such as smoke, from a gaseous fluid stream, such as air, uses interaction between Van der Waals forces and a non-ionizing electrostatic field to efficiently capture the contaminant particles in a filter material whose pores are many times larger than the diameter of the particles to be captured. The filter material is physically so configured to further enhance that interaction and is disposed between at least a pair of electrodes of opposite polarity. The material may be spaced apart from the electrodes, but preferably touches one of them. The particles are trapped generally throughout the thickness of the filter material but ample room is left for continued air flow. The electrostatic voltage is preferably between 3 and 9 kV and is largely independent of electrode spacing. The configuration of the filter material is such that the flow velocity through the material is less than 0.1 m/sec, preferably on the order of 0.03 m/sec.

Abstract: A non-ionizing, clog-resistant filter for extracting fine particulate contaminants such as smoke from a gaseous fluid stream such as air uses interaction between Van der Waals forces and a non-ionizing electrostatic field to efficiently capture the contaminant particles in a filter material whose pores are many times larger than the diameter of the particles to be captured. The filter material is physically so configured to further enhance that interaction, and is disposed between at least a pair of electrodes of opposite polarity. The material may be spaced from the electrodes, but preferably touches one of them. The particles are trapped deeply into the thickness of the filter material and leave ample room for continued air flow. The electrostatic voltage is preferably between 3 and 9 kV and is largely independent or electrode spacing. The configuration of the filter material is such that the flow velocity through the material is less than 0.1 m/sec, preferably on the order of 0.03 m/sec.

Abstract: A system and method for altering the amount of electrical energy supplied to a plurality of fluorescent lamps, has a first switch connected in series between a source of electrical energy and a plurality of lamps connected in parallel. The first switch may be a simple ON-OFF, single pole- single throw wall switch. A second switch is connected in series with less than all of the lamps and is an electrically actuated toggle switch which responds to actuation of the wall switch. Multiple actuation of the wall switch permits turning all lights on or off or some on while others are off.

Abstract: An ocular antihypertensive composition for topical use which contains an effective amount of a compound represented by the formula ##STR1## or a salt thereof having, in low concentrations, intraocular pressure lowering activity in mammals, low toxicity and no influence on the pupil size and, therefore, is useful as a therapeutic agent for glaucoma, for instance.Furthermore, since the compound is effective in low concentrations, the possibility of tolerance development is considered to be scarce.

Abstract: This invention relates to an aqueous preparation comprising a compound (A) represented by the formula: ##STR1## and at least one of cyclodextrins selected from .alpha.-cyclodextrin and dimethyl-.beta.-cyclodextrin; and a method of preparation thereof.According to the aqueous preparation of this invention, coexistence with at least one medicament selected from .alpha.-cyclodextrin and dimethyl-.beta.-cyclodextrin allows to enhance the solubility to water of compound (A) essential in this invention to such a concentration that makes an expected curative effect available and to inpart a desired stability to it. As a consequence, the aforesaid compound (A) can be utilized as a medicament for an aqueous preparation having anti-allergy action.

Abstract: A pharmaceutical composition containing cysteine or a pharmacologically acceptable salt thereof is an effective therapeutic agent for diabetic complications, typically diabetic cataract.

Abstract: Compounds of the general formula: ##STR1## wherein, R.sup.1 and R.sup.2 are, the same or different, hydrogen, a halogen, a lower alkyl, a cycloalkyl, a lower alkoxy, trifluoromethyl or a phenylalkyloxy whose phenyl ring may be substituted by one to three substituents selected from the group consisting of a halogen, a lower alkyl, a lower alkoxy, methylenedioxy and trifluoromethyl; R.sup.3 is hydrogen or methyl; R.sup.4 is carboxyl or an esterified carboxyl; and X is oxygen or sulfur, or a salt thereof. These compounds possess aldose reductase inhibitory and platelet aggregation inhibitory activities, and are of use as drugs for prevention and treatment of diabetic complications such as diabetic cataract, retinophathy, nephropathy, and neuropathy.

Abstract: An ophthalmic solution having anti-inflammatory action without side effects and irritativeness which comprises pranoprofen and boric acid.

Abstract: A new thiazolidine derivative of the formula: ##STR1## wherein n stands for an integer of 3 to 6 and salts thereof show strong aldose reductase inhibition and are useful for prophylaxis or therapy of diabetic cataracts and diabetic neuropathy in mammals.

Abstract: A security device incorporates apparatus for producing a special alarm sound in response to a change in acceleration sensed with a special omnidirectional sensor and under the control of special SCR circuitry. The circuitry and sensor are especially adapted for the security application but have independent utility.

Abstract: A remote disconnect coupler 18 for accomplishing switching at the end of a transmission line 12 between a test apparatus 24 and normally connected equipment 20 in response to signals from a remote command apparatus 16 includes a piezo-electric switch actuator 26 and command identification apparatus 28. In preferred forms the identification apparatus times reswitching and accomplishes snap switch action with oscillatory switch actuators 150 and dual switch actuators 116, 120.

Abstract: A thiazolidine derivatives of the formula: ##STR1## wherein R is a phenyl group having 2 nuclear substituent groups selected from the group consisting of a lower alkyl having 1 to 6 carbon atoms, a lower alkoxy having 1 to 7 carbon atoms, hydroxyl and a carboxylic acyloxy having 1 to 4 carbon atoms, or a phenyl group having a methylenedioxy group in adjacent positions on its ring; R.sup.1 is H or an alkyl having 1 to 6 carbon atoms, or a physiologically acceptable salt thereof is a novel compound having the activity to control certain chronic symptoms due to diabetes, such as diabetic cataract, diabetic neuropathy and diabetic retinosis.

Abstract: A security device incorporates apparatus for producing a special alarm sound in response to a change in acceleration sensed with a special omnidirectional sensor and under the control of special SCR circuitry. The circuitry and sensor are especially adapted for the security application but have independent utility. The alarm generates two tones in the middle audio range, separated by 50 to 200 Hz. One of those tones is interrupted at a sub-audible rate of 3 to 8 Hz. The resulting alarm, at high volume levels, is of enhanced urgency, compelling a hearer to escape, the compulsion being of a degree not easily overcome by reason.

Abstract: A headlamp control system and anti-theft alarm system share a relay which powers the headlamp circuit of a vehicle in one position and enables use of the horn in an alarm circuit in the other position. Delay times operate at ignition switch turn-off to control headlamps, if illuminated, and to permit arming of the alarm and exiting the vehicle before the alarm becomes fully active.

Abstract: A multimorph is a piezoelectric element which moves or bends as an incident to being charged or otherwise subjected to an electrostatic field so that a potential gradient appears across the element. The amount of movement or bending can be sufficient to actuate electrical contacts whereby the multimorph is useful in switches and relays. Improved multimorph construction and mounting, improved contact construction and mounting, and improved arrangements for subjecting multimorphs to electrostatic charges to provide improved switching and relay units are disclosed. Such units may be incorporated in time delay systems and the manner in which that can be done is disclosed along with other applications.

Abstract: An improved ground fault tester uses a magnetostrictive element or piezo-electric element, such as a multimorph, which changes dimensions upon being magnetized or electrically charged. The dimensional change is used to interrupt the power circuit in which the ground fault occurs. The existence of a ground fault is sensed by a sensor which supplies current to the magnetostrictive or piezo-electric element. In the case of the piezo-electric element, the charge is dissipated through a parallel discharge circuit whereby interruption of the power circuit is accomplished rapidly and is reclosed only after a time delay. Automatic time delay resetting may be easily accomplished by the addition of a single resistor and a rectifier.