Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 7234448 | Fuel injection pump having filter A fuel injection pump includes a cam rotating with a camshaft, a cam ring revolving around the camshaft, a housing, plungers for pressurizing and pressure-feeding fuel drawn into fuel pressurizing chambers, and a rotary pump for supplying the fuel to the fuel pressu... | 06/26/2007 |
| 7175398 | Integrally molded sound housing for blower motor A heating and air-conditioning (HVAC) module for an automotive vehicle wherein the electric motor for the blower includes a double walled motor housing for noise abatement. The housing defines a cup-shaped inner casing with an open end and a closed end. An outer cas... | 02/13/2007 |
| 7131430 | Emissions control system for small internal combustion engines An evaporative emissions control system for small internal combustion engines includes a control valve associated with a fuel line and with a vent line which each connect the fuel tank to the carburetor. When the engine is not running, the control valve automaticall... | 11/07/2006 |
| 7051840 | Power unit In a power unit comprising an engine (13) and an HST (24) which are formed into an integral body, a lubricating oil for use in the engine and an operating oil of the HST (24) are commonized. After being cooled, the common oil is fed from the sid... | 05/30/2006 |
| 7032375 | Secondary air supply system In the disclosed secondary air supply system, an on-off valve (13) is driven by the discharge pressure of an air pump (12). A diaphragm chamber (44) is arranged in the neighborhood of a discharge outlet (54), and a part of the discharge a... | 04/25/2006 |
| 7007708 | Flow control valve A valve mechanism to control fluid flow between a fluid pumping device and a system that includes an inlet from the fluid pumping device, a first valve, a second valve, a first outlet fluidly connected to the system, and a second outlet. The first valve prevents bac... | 03/07/2006 |
| 6923165 | Fuel system for a marine propulsion device A fuel system is provided with a fuel distribution member that has a plurality of passages formed within its unitary structure to allow a water separating fuel filter and a pressure regulator to be attached directly to the fuel distribution member without the need o... | 08/02/2005 |
| 6844094 | Gas-supplying apparatus for fuel cell A gas-supplying apparatus for a fuel cell, which generates electric power due to an electrochemical reaction between oxygen and hydrogen, during which water is produced, and which has respective gas passages within the duel cell according to the present invention co... | 01/18/2005 |
| 6834673 | Pump module with pressure regulator A pump module for mounting in a fuel tank of an automotive fuel supply system includes a housing, a fuel pump mounted in the housing, a pressure regulator conduit mounted in the housing, and a pressure regulator. The housing includes a module inlet and a module outl... | 12/28/2004 |
| 6814099 | Flow regulator for water pump A flow regulator for a water pump, comprising a valve body, a left piston, a right piston, a connecting rod, a spring, and a conduit. The valve body is roughly shaped like a cross, having a passageway in a vertical direction and a left tube and a right tube in a hor... | 11/09/2004 |
| 6688320 | Utility conservation control methodology within a fluid pumping system The present invention relates to a process of utility conservation control methodology within a fluid pumping distribution system. With fluid flowing through a distribution grid, the pressure at any given point becomes a function of system flow. At a spec... | 02/10/2004 |
| 6652240 | Method and control system for controlling multiple throttled inlet rotary screw compressors A more efficient compressor control system and a more efficient method of operating a multiple throttled inlet rotary screw compressor system includes the method and control system which are a function of both the actual system pressure and volumetric flo... | 11/25/2003 |
| 6631731 | Flow regulator for water pump A flow regulator for a water pump, comprising a valve body, a control element, a tube, a spring, and a connecting pipe. The valve body is roughly shaped like a cross, enclosing a first chamber and a second chamber in a vertical direction and having a pass... | 10/14/2003 |
| 6591851 | Seal-gas valve device During the pumping of corrosive gases, it is advantageous to admit a seal gas to endangered pumping chambers at a lower flow rate and a higher pressure than the corrosive gases. Inert gas from a supply (3) has its pressure reduced by a pressure reducer (6... | 07/15/2003 |
| 6568426 | Pressurized water supply systems A pump assembly for a pressurized water system includes a pressure sensitive switch (27) arranged to monitor the water pressure in a pipe (14) extending between a water delivery pump (13) and a tap (15), the switch (27) controlling operation of the pump (... | 05/27/2003 |
| 6564826 | Flow regulator for water pump A flow regulator for a water pump, comprising a valve body, a piston block, a spring, a connecting pipe, and a rod. The valve body is roughly shaped like a cross, having a passageway in a vertical direction and a first tube and a second tube in a horizont... | 05/20/2003 |
| 6499504 | Control system for controlling multiple compressors The present invention is a more efficient compressor control system and a more efficient method of operating a multiple compressor system because the method and control system are a function of both the system pressure and the volumetric flow rate capacit... | 12/31/2002 |
| 6311725 | Fuel supply apparatus A fuel supply apparatus for engines of a multi-point injection system using fuel tanks of many sizes and shapes is disclosed. In the fuel supply apparatus, a pump device 10 is constructed of an electric motor-driven fuel pump 10, a fuel filter 49, and a p... | 11/06/2001 |
| 6273126 | Flow regulator for water pump A flow regulator for a water pump, working in conjunction with a water pump, having a pump, an inlet pipe, an outlet pipe with a water pressure, and a container. The flow regulator comprises: a main body, installed at the inlet pipe and having a passagewa... | 08/14/2001 |
| 6192925 | Flow regulator for water pump A flow regulator for a water pump, working in conjunction with a water pump, having a pump, an inlet pipe, an outlet pipe with a water pressure, and a container. The flow regulator comprises: a main body, installed at the inlet pipe and having a passagewa... | 02/27/2001 |
| 5924448 | Infinitely variable pneumatic pulsatile pump A pulsatile pump the output of which is infinitely variable between a slow pulsatile flow and increased up to a sharply pulsed flow rate until the pulses run together and a smooth flow results, and which may be varied between wide output pressure and freq... | 07/20/1999 |
| 5794658 | High energy pump system for use in the descaling of steel This invention relates to a descaling system for use in the manufacture of steel and corresponding method, including a pump recirculation system. The recirculation system is adapted to make high pressure descaling fluid (e.g. water) instantaneously availa... | 08/18/1998 |
| 5675880 | Descaling system for use in the manufacture of steel and corresponding method This invention relates to a descaling system for use in the manufacture of steel and corresponding method, including a pump recirculation system. The recirculation system is adapted to make high pressure descaling fluid (e.g. water) instantaneously availa... | 10/14/1997 |
| 5637208 | Solvent pumping system for chromatography with switching-valve A pumping system for continuously delivering fluid at a selected flow rate to a receiving system. The system includes at least a first and a second pumping unit, each of the individual units comprises a syringe and a valve. The syringe comprises a piston ... | 06/10/1997 |
| 5590675 | Anti-siphon valve A method of valving a flow of pumped fluid, to prevent siphoning of the flow when the pump is stopped, including the steps of filling a chamber with fluid, directing a small flow of pumped fluid into the chamber to increase its volume, opening a main flow... | 01/07/1997 |
| 5429095 | Apparatus for supplying fuel to an engine through a diaphragm-type carburetor An apparatus for supplying fuel in a fuel tank to an engine through a diaphragm type carburetor includes a fuel pump and an exhaust passage. The fuel pump includes a suction valve and a discharge valve and is driven by pulsation pressure caused by rotatio... | 07/04/1995 |
| 5285759 | Fuel system A fuel system of an internal combustion engine comprises a fuel tank for storing fuel, a fuel injection valve disposed on the internal combustion engine, a fuel supply pipeline connecting between the fuel tank and the fuel injection valve, a fuel pump for... | 02/15/1994 |
| 4887628 | Fluidic apparatus A vortex amplifier functions as a choke valve to control flow in a flow line from, for example, a gas or oil well. The vortex amplifier is arranged in the flow line such that flow passes radially through the vortex amplifier to emerge at an axial port. A ... | 12/19/1989 |
| 4723571 | Fluid supply apparatus A fluid supply apparatus includes a pressure reducing valve. The inlet passageway of the valve is connectable to a first fluid supply and the outlet passageway of the valve is connectable to a fluid user capable of generating a subatmospheric pressure. Th... | 02/09/1988 |
| 4380242 | Method and system for distributing natural gas A user terminal is provided with two off-loading stations, and at least two separate pressure vessel means are employed to supply natural gas to the user terminal. At least one of the separate pressure vessels is movable to a supply terminal. The off-load... | 04/19/1983 |
| 4254797 | Apparatus for producing calibration gases suitable for analytical instrumentation Apparatus, useful for blending predetermined accurately measured quantities of gaseous components transferred from separate pressurized supply tanks to a gas blending system, preferably on input signals received from a computer. The gas blending system in... | 03/10/1981 |
| 4237926 | Fluid flow shutoff valve A fluid system (10) has a shutoff valve (13) positioned between a fluid tank (11) and the intake side of a pump (12). The valve (13) includes a valve spool (21) movable between a first position at which an inlet port (18) connected to the fluid tank (11) ... | 12/09/1980 |
| 4230146 | Fuel feed system A fuel feed system having a fuel tank and a pump for pumping up fuel from said fuel tank and for feeding the same to a combustor, characterized in that there is provided between said fuel tank and said pump, a negative pressure actuating valve which is cl... | 10/28/1980 |
| 4161957 | Leakage protective apparatus for storage containers or the like A leakage protective apparatus for the outlet line of a storage container for flowable material includes a conduit arrangement which connects a storage container and consumer and itself includes a pump for pumping the flowable material from the storage co... | 07/24/1979 |
| 4034421 | Vacuum sewer system including a collecting tank In a vacuum sewer system a tank is provided for the collection of liquid-mixed wastes, especially from water closets, the tank comprising a circulating pump whose inlet and outlet are connected to the tank and which is adapted to circulate the tank conten... | 07/12/1977 |
| 3937440 | Metering pump and combination two-section pinch-off aspirator valve This invention relates to a positive displacement adjustable volume pumping and dispensing system used to supply measured amounts of viscous material. The system includes a pneumatically or hydraulically driven submersible adjustable volume piston-type pu... | 02/10/1976 |
