| Patent Number |
Title Of Patent |
Date Issued |
| 4812265 |
Carburetor fuel inlet valve |
March 14, 1989 |
| A preassembled carburetor valve of the general type shown and described in U.S. Pat. No. 3,454,036 has a floating disc-type valve without an encircling metal rim. The hollow body is provided with oppositely disposed "cathedral window" openings. The valve body, including the valve seat an |
| 4620440 |
EGR valve test fixture |
November 4, 1986 |
| A test fixture for EGR valves has a support with a flat upper surface with a well opening through it spaced from the boundaries of the upper surface. A conduit, open at two ends, communicates with the atmosphere at one end and with the well intermediate its ends. A venturi tube communica |
| 4279145 |
Fuel efficiency display |
July 21, 1981 |
| A fuel efficiency display device, in the form of an intake manifold suction measuring and display intended to be mounted within the passenger compartment of an internal combustion engine propelled vehicle, includes an elongated housing with a hollow open bottomed outer shell with a m |
| 4212323 |
Power assist proportional remote controller |
July 15, 1980 |
| A power assist remotely controlled servo controller for proportionally controlling the operation of a directional control valve, the controller including a servo-controlled force amplifying piston assembly to operate the directional control valve and a pilot pressure balanced piston |
| 4178962 |
Control valve with flow control means |
December 18, 1979 |
| An open center type control valve for a hydraulic motor, wherein pressure fluid from a source is caused to flow from the valve inlet to a motor port at a substantially uniformly metered rate despite fluctuations in the load on the governed fluid motor, due to the operation of a flow cont |
| 4117862 |
Pressure compensated control valve |
October 3, 1978 |
| A pressure compensating valve spool assembly for a hydraulic flow control valve the spool assembly being slidably positioned in the central bore of a valve housing for movement from a neutral position wherein fluid will flow through the valve assembly to reservoir to operative positions |
| 4049232 |
Pressure compensating fluid control valve |
September 20, 1977 |
| A proportional pressure compensating hydraulic control valve having a valve body and a valve spool mounted in the valve body for movement from a neutral or open center position wherein fluid flows through the valve body to an operating position wherein the flow of fluid through the valve |
| 3985153 |
Pressure compensating valve spool assembly for a hydraulic control valve |
October 12, 1976 |
| A pressure compensating valve spool for a hydraulic flow control valve, the valve spool being slidably positioned in the valve for movement from a neutral position wherein fluid will flow through the valve to operative positions in either direction to provide fluid communication from a f |
| 3933167 |
Pilot operated check valve |
January 20, 1976 |
| A pilot operated check valve having pressure actuated poppet valves positioned to limit flow in one direction through each of two flow paths through the valve, each poppet valve including a one-way check valve to control reverse flow through the two flow paths and a spool positioned in |
