Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Number | Title | Issue Date |
| 7416237 | Adjusting system of a motor vehicle for the adjustment of a closing part for the closure of an opening of a motor vehicle body An adjusting system of a motor vehicle for the adjustment of a locking piece is disclosed. The locking piece may be arranged to close a motor vehicle opening. The adjusting system includes a first and second casing extending oblong-wise in a length-wise direction. T... | 08/26/2008 |
| 7303053 | Non-pressure head with integrated piston stop and vent/drain A non-pressure head for a fluid cylinder, which includes a drain channel formed in the flange by a raised portion of the flange extending from a plane of the flange in the same direction as the head portion. The channel is cold formed in the flange. For the piston s... | 12/04/2007 |
| 7285220 | Water softener Disclosed is a water softener capable of producing soft water at various temperatures and facilitating the regeneration of an ion exchange resin thereof. The water softener includes a water softening tank in which an internal region containing therein the ion exchan... | 10/23/2007 |
| 7270048 | Pump A pump (1) with an oscillating part having a housing (2) with a working chamber (3) and a crankcase (4) defined from the working chamber by the pump part. A pump drive mechanism (6) with a drive shaft (7) is located inside t... | 09/18/2007 |
| 7237474 | Reciprocating pump A piston pump for an electronically controllable vehicle brake system including a particularly simple, inexpensive, and space-saving throttle, and a filter hydraulically upstream of it, which prevents the throttle from becoming clogged with impurities. The pressure ... | 07/03/2007 |
| 7204565 | Electrohydraulic assembly for an electronically controlled brake system The invention relates to an electrohydraulic assembly for an electronically controlled brake system with an accommodating member which includes accommodating bores for electrohydraulic valves, accommodating bores for hydraulic supply devices and an accommodating bor... | 04/17/2007 |
| 7194858 | Hydrogen equalization system for double-acting stirling engine A working gas pressure equalization system for a multiple-cylinder, double-acting hot gas engine such as a Stirling engine of the type having a plurality of pistons reciprocatable within the cylinders defining a plurality of generally isolated cycle volumes of a wor... | 03/27/2007 |
| 6994014 | Closed cavity piston for hydrostatic power units and method of manufacturing the same Disclosed is a closed cavity piston made from a metal injection molding process. The piston has an elongated cylindrical body with a first end that is adapted to receive a slipper. The piston also has at least one hollow compartment and a hollow stem that transports... | 02/07/2006 |
| 6874405 | Breather filter for sealed spring brake actuators A brake actuator assembly includes a housing defining a spring chamber. A spring is disposed in the spring chamber, the spring being biased toward an extended position and movable against the bias toward a caged position. A release assembly is provided for selective... | 04/05/2005 |
| 6719477 | Spacer for vacuum brake booster A lightweight spacer for mounting a vacuum brake booster on a panel provides integral flexible sealing lips to seal the interfaces between the panel, spacer, and booster. Integral retaining tabs are provided for holding the spacer in place on the booster during ship... | 04/13/2004 |
| 6652245 | Piston pump for hydraulic vehicle brake system The invention relates to a piston pump for a hydraulic, slip-controlled vehicle brake system. The piston pump has a piston, which is inserted with a part of its length into a sleeve. A tubular filter that encompasses the piston is attached to the sleeve a... | 11/25/2003 |
| 6505540 | Control valve retaining element A control valve retaining element (22) for a brake booster (10) has a hollow cylindrical base member (28) and a first retaining collar (30), which is connected to the base member (28) and has at least one side wall for supporting a bellows end (20). To en... | 01/14/2003 |
| 6477935 | Vacuum brake booster The present invention relates to a vacuum brake force booster which includes a valve piston with a pedal push rod that is axially slidable in a vacuum housing, further including a control housing and a poppet valve connected to the valve piston, and an ai... | 11/12/2002 |
| 6389954 | Removable filter plug for spring brake actuator Disclosed is an easily removable and replaceable filter for attachment to the breather holes in the housing of a spring or service brake actuator. The invention has a hollow shaft and flange for snap fitment into a brake actuator breather hole, and includ... | 05/21/2002 |
| 6283733 | Piston pump for a vehicle brake system A piston pump which is intended for use in a vehicle for a hydraulic, slip-controlled braking system. To enable producing the piston pump inexpensively, a bush is made without undercuts as an upset part integrally with a bottom which has a valve seat for ... | 09/04/2001 |
| 6224352 | Piston pump in a brake system of a vehicle A piston pump for a slip-controlled hydraulic brake system for a vehicle. A tubular filter is mounted on a bush of the piston pump; the filter has a filter ring that forms a guide ring and is spaced apart from the bush and axially guides the piston by a p... | 05/01/2001 |
| 6217300 | Piston pump A piston pump with a piston that is displaceable in a bush. In order to keep the piston in the bush for retention therein a hollow-cylindrical filter, mounted on the bush, with yielding fingers that engage a groove of the piston keep the piston in the bus... | 04/17/2001 |
| 6119578 | Servomotor using a controlled density filter A pneumatic brake booster having a valve (7) actuated by movement of an operating rod (8) within a hub (6) from a position of rest to an extreme actuation position. In the position of rest, the valve (7) is closed to a pressure source (A) and when moved t... | 09/19/2000 |
| 6082244 | Piston pump The invention relates to a piston pump having a piston that is axially displaceable in a bush. In order to keep the piston in the bush in a manner secured against loss, a tubular filter is secured to the bush in the extension thereof; the filter has a sma... | 07/04/2000 |
| 6073535 | Guard for a valve body of a brake booster A brake system has a brake booster secured to a dash panel which separates an engine compartment from a passenger compartment of a vehicle. A bracket off-sets the booster into the engine compartment from the dash panel. A cylindrical body has a flange on ... | 06/13/2000 |
| 5882180 | Oil mist filter in a variable displacement compressor A compressor having a cam plate disposed in a crank chamber and mounted on a drive shaft. The cam plate is tiltable between a maximum inclined angle position and a minimum inclined angle position with respect to a plane perpendicular to an axis of the dri... | 03/16/1999 |
| 5405249 | Gas supply apparatus A gas supply apparatus (1) particularly for supplying oxygen comprises a gas separator (2) for separating oxygen from the other constituents of the air. The oxygen passes to a piston cavity (6) of a compressor unit (7) where it is compressed and passed to... | 04/11/1995 |
| 5403164 | Air compressor for internal combustion two cycle engines A passive compressor is disclosed which includes a free piston or a flexible membrane whose movement is controlled by pressure variations in a main chamber. The pressure in the main chamber changes according to the pressure in the motor crankcase, as the ... | 04/04/1995 |
| 5341725 | Twin piston power cylinder A power cylinder (10) has two pistons (12, 20) slidably mounted within separate cylinders (14, 22) to define inner and outer chambers (16, 18; 24, 26) within each cylinder. One or more rods (28) are coupled between the pistons. The outer chambers (18, 26)... | 08/30/1994 |
| 5182017 | Filtrate separating device with flexible deformable liquid and gas impermeable wall Filtrate separating device having a pair of walls connected by a frame defining a receiving space for sludge to be filtered. The walls being displaceable away from one another, and made of a flexibly deformable liquid and gas impermeable material.... | 01/26/1993 |
| 5031507 | Vacuum brake force booster with booster-side valve air intake A boot (19) protecting the pedal-sided end (18) of the control valve housing (5) of a vacuum brake force booster is fixed by a spacer. The spacer is preferably configured as a dual-walled annular sleeve (20). It is axially secured in the same position as ... | 07/16/1991 |
| 5031404 | Pressurized air booster The invention provides a brake booster including in a preferred embodiment a housing, first and second annular flexible diaphragms spaced from one another forming a sealed second chamber within the housing and a sealed first chamber between the first diap... | 07/16/1991 |
| 4961846 | Collapsible filter for a fluid power apparatus A fluid power apparatus (10) includes a power piston (40) dividing a working chamber (18) from a first chamber (16), the power piston (40) biased toward a rest position by a spring (17) and the piston (40) displaced by means of restricting fluid flow betw... | 10/09/1990 |
| 4889037 | Chamber equipped with a breather opening to the atmosphere The invention provides an open breather chamber in front of the breather chamber proper with the cross-sectional and length ratios lying within certain configurations so that solids, fluid and steam particles will enter the breather chamber and not cause ... | 12/26/1989 |
| 4767898 | Pressure responsive switch with an air filter A pressure switch comprising a housing, a diaphragm that divides the inside of the housing into a pressure chamber and an atmospheric chamber, a switch portion mounted in the atmospheric chamber, and a resilient cap fitted over the housing. A porous filte... | 08/30/1988 |
| 4719938 | Self-cleaning valve and cryopump utilizing the same The pressure relief valve is debris resistant, self-cleaning, and self-actuating in a cryopump. It includes an o-ring carried by a valve member within a valve cylinder. In opening, the valve member moves away from an end port to open vent ports in the sid... | 01/19/1988 |
| 4716814 | Muffler for brake booster system A muffler device for use in a brake booster system in which there are inserted in an air suction passage cylindrical noise shielding member having at one end an outer flanged portion extending radially outwardly and at the other end an inner flanged porti... | 01/05/1988 |
| 4685298 | System for generating braking pressure The system for generating braking pressure, consisting of a pneumatic assistance servomotor (2) mounted so as to overhang on a master cylinder (1) which it actuates by a tubular pullrod component (14) in which extends the control pushrod (11) of the distr... | 08/11/1987 |
| 4644847 | Reduction of failure incidence of metallic diaphragms for compressors In a compressor which includes an upper and lower head portions and an interposed diaphragm, provisions are made for increasing the service life of the diaphragm by reducing the incidence failure of the diaphragm due to fretting products and airborne cont... | 02/24/1987 |
| 4627793 | Motor-driven radial plunger pump A motor-driven radial plunger pump has an outer housing enclosing a motor section and a pump section drivingly connected thereto. The motor section has a motor housing cooperating with the outer housing to define a fluid passage having a fluid inlet adjac... | 12/09/1986 |
| 4621987 | Plunger apparatus A plunger apparatus for pumping fluid in a well having a tubular barrel, the apparatus providing an upper portion adapted to be secured on a tubing string for axial movement within the barrel, the upper portion providing a bore axially therethrough and mo... | 11/11/1986 |
| 4616114 | Pressure responsive switch having little or no differential between actuation release pressure levels A hermetically sealed, creep acting pressure switch has a sensor assembly comprising a bulged metallic membrane welded between a port fitting and a support. A switch assembly, attached to the sensor assembly, includes a housing which has a switch chamber ... | 10/07/1986 |
| 4598630 | Double acting self-flushing pump A double action slurry pump is provided having a shelf-flushing piston assembly mounted in a mating cylinder. The piston assembly includes a first piston having a peripheral sealing means and a reciprocating piston rod for driving the first piston. Second... | 07/08/1986 |
| 4585172 | Hydraulic actuation Apparatus and method for hydraulic actuation via multiple synchronized hydraulic motors with air purging, synchronizing, and force limiting features.... | 04/29/1986 |
| 4551105 | Marine propulsion device with tilt and trim means with fluid filtering A marine propulsion device including a member adapted to be connected to a boat hull, and a propulsion assembly pivotally connected to the member for vertical swinging movement when the member is attached to the boat hull. The device also includes a plura... | 11/05/1985 |
