Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 4716720 | Combustion engine with exterior combustion chamber A combustion engine has a combustion chamber separated from the compression and expansion chamber(s). Passages are provided between the combustion chamber and the compression chamber(s) and the combustion chamber and the expansion chamber(s) with respecti... | 01/05/1988 |
| 4370103 | Piston pump with discharge valve, inlet valve and misalignment compensating means in a pump head A piston pump mechanism for use in positive pressure and vacuum pumping systems for pumping various gases such as air, freon, natural gas, etc. The pump mechanism incorporates an inlet and discharge valve system that substantially eliminates any unpurged ... | 01/25/1983 |
| 4084731 | Fluid dispensing pump assembly An atomizing pump assembly for use with a variety of types of containers is disclosed in which a housing is formed with both an outlet port and an internal fluid chamber that communicates via a passageway with the outlet port. Tubular means provides commu... | 04/18/1978 |
| 3986795 | Fuel injection assembly There is disclosed a fuel injector assembly having a disc type delivery valve and a reverse check combined with the delivery valve to control secondary pressure to reduce fuel line erosion due to cavitation. The arrangement provides an unobstructed passag... | 10/19/1976 |
