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 |
| 7156239 | Filter unit for freezable liquids, particularly for a metering unit of an exhaust gas treatment device A filter unit for liquids undergoing freezing for a metering unit of an exhaust gas treatment unit has a housing having an outer member and a lid member. At least one filter insert is arranged in the housing. An elastically deformable casing part is provided that su... | 01/02/2007 |
| 7114379 | Fuel meter for outboard engines An apparatus and method for determining a parameter related to fuel consumption in an engine are disclosed. An electrical sensor senses an electrical control signal used to control fuel introduced into the engine, such as by controlling a valve or fuel injector of t... | 10/03/2006 |
| 5304049 | Frictionless rotary pump-motor-meter A rotary pump-motor-meter comprises a rotor assembly including a shaft (38) and one or more hub members (37) coaxially affixed to the shaft, that supports a plurality of flaps (40) disposed about the shaft (38), each of which flaps has a round first edge ... | 04/19/1994 |
| 5238373 | Extending-retracting vane meter-motor-pump A positive displacement fluid handling apparatus comprises a hollow circular cylindrical vane guide with a plurality of slotted axial openings included in the cylindrical wall thereof and a plurality of vanes, wherein the hollow circular cylindrical vane ... | 08/24/1993 |
| 5051078 | Rotary pump-flowmeter A rotary pump-flowmeter comprises a body including a cylindrical cavity and a rotor assembly including at least one flange disposed within the cylindrical cavity in a rotatable arrangement about an axis of rotation parallel to and offset from the central ... | 09/24/1991 |
| 4765185 | Pivoting flap pump-flowmeter The pumping and/or flow measuring device of the present invention comprises a rotationally symmetric assembly of flaps with cross section having a round first extremity disposed adjacent to and about the central axis of the flap assembly and a pointed cre... | 08/23/1988 |
| 4646568 | Flap pump-flow meter This invention discloses a device usable as a pump or a compressor or a flow meter that includes a plurality of flaps having a substantially "comma-shaped" cross section assembled in a parallel arrangement wherein the flaps are respectively pivotable abou... | 03/03/1987 |
| 4107992 | Fluid meter A fuel dispensing system having a positive displacement vane type fuel meter with an enclosed rotor assembly mounted within a fluid tight housing and connected to a fluid inlet and outlet of the housing to be rotated in direct proportion to the volume of ... | 08/22/1978 |
| 4044596 | Volumetric meter This volumetric meter comprises a case with at least one inlet orifice and at least one outlet orifice interconnected by a circular passage concentric to an annular member rotatably mounted therein and provided with collapsible spaced peripheral vanes so ... | 08/30/1977 |
