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Thomas Edison ; 1889
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| Number | Title | Issue Date |
| 7311155 | Pneumatic tool with direction switch operable with single hand A pneumatic tool is operable with a single hand. The pneumatic tool includes a shell defining a first chamber and a second chamber. The second chamber includes intake and outlet apertures in communication with the first chamber. A cylinder is in the first chamber. A... | 12/25/2007 |
| 6530758 | Composite fluid control membrane for windshield washer pump and method of manufacturing same A membrane seal for a multi-part fluid pump housing discharging windshield washer fluid from reservoir includes a one-piece, rigid carrier and a resilient seal member molded onto the rigid member to seal two pump housing parts. Resilient material also ove... | 03/11/2003 |
| 5934872 | Washer pump for selectively supplying wash fluid to two areas A washer pump, which adapted to selectively supply wash fluid to one of front and rear windows of an automobile, comprises a valve mechanism. The valve mechanism has two wash fluid conduction pipes communicating with two wash fluid feed pipes in a pump bo... | 08/10/1999 |
| 5430332 | Movable and adjustable dam A movable and adjustable dam including a waterwheel for generating power in rivers, creeks, streams and other flowing bodies of water in which the use of a permanent dam would be impractical or undesirable. The preferred dam includes floatable wall member... | 07/04/1995 |
| 5186606 | Double feed pump, in particular for windshield washer systems in motor vehicles A double feed pump has two outlet channels to be selectively acted upon with liquid in accordance with the direction of rotation of a feed element and two movable sealing membranes one each being assigned to an outlet channel and separating a valve chambe... | 02/16/1993 |
| 5090867 | Rotating fluid machine for reversible operation from turbine to pump and vice-versa A rotating fluid machine for reversible operation from turbine to pump and from pump to turbine having a simple structure which allows for easy manipulation when reversing operation, and having a low change in efficiency when the machine operates in rever... | 02/25/1992 |
| 5071315 | Windscreen washer pump for vehicle A pump used to selectively force-feed under pressure washer fluid to the front and rear windscreens of a vehicle according to the rotation of an impeller in either one or other direction. A bypass flow passage for taking out part of the washer fluid, whic... | 12/10/1991 |
| 4986382 | Power assistance for vehicle steering mechanisms In a power assistance system for a vehicle steering mechanism fluid pressure providing the assistance is supplied from a pump driven intermittently by an infinitely-variable electric motor. For a rack and pinion mechanism fluid pressure chambers are forme... | 01/22/1991 |
| 4923366 | Reversible turbine pump A reversible turbine pump includes a pair of end walls and a side wall defining an annular pumping chamber. A turbine impeller mounted for reversible rotation in the chamber includes a rigid input shaft. One end of the shaft extends through one end wall a... | 05/08/1990 |
| 4919591 | Washer pump for automobiles A washer pump for an automobile includes a substantially circular pump chamber receiving concentrically therein an impeller and having an inlet aligned with the center of the impeller and first and second outlets defined in a sidewall of the pump chamber ... | 04/24/1990 |
| 4728260 | Direction-selectable sending-out pump An impeller driven by a reversible motor is set in a housing and a functional path capable of sending out liquid by pump action is formed between the inner wall of the housing and the impeller. On the both-end side of the functional path are provided two ... | 03/01/1988 |
| 4467627 | Pump for a dispensing system for an automatic washer A pump for an automatic washer is provided which has an inlet connected to the machine tub and a first outlet connected to a set of dispensing chambers and a second outlet connected to a drain, and including a check valve between the inlet and the second ... | 08/28/1984 |
| 4331295 | Windshield washer A windshield washer having a jet nozzle adapted for ejecting a washing liquid to a windshield, a first reservoir for containing a first liquid such as water, a second reservoir for containing a second liquid such as a detergent solution, and a pump having... | 05/25/1982 |
| 4032254 | Reversible cross flow blower Reversal means for a transverse or cross flow blower is provided which allows for reversal of fluid flow direction without changing impeller rotation direction. In the first embodiment, power means rotate the housing 180° from its initial position, there... | 06/28/1977 |