Celebrity Inventors
Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.
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| Number | Title | Issue Date |
| 8091576 | By-pass and pressure regulator valve A by-pass and pressure regulator valve exhibiting: an inlet mouth and an outlet mouth set in reciprocal communication by a main conduit; a by-pass mouth. The by-pass and pressure regulator valve comprises: an obturator, mobile between at least a closed position, in ... | 01/10/2012 |
| 7784483 | Backflow preventer A backflow preventer that generally includes a modular fluid arrangement having a modular strut, a one-piece modular cage, a relief valve fluidly connected to the modular cage, and at least one in-line check valve removably housed in the modular cage. In operation, ... | 08/31/2010 |
| 7363917 | Filter unit and valve for a fuel supply system A valve (49) which is intended for insertion into the line connecting a fuel pump to a system of injection valves and which is designed as a pressure-maintaining valve is characterized by a pipe body (50) intended to have a flow passing through it, int... | 04/29/2008 |
| 7284563 | Surge relief apparatus and method A surge relief apparatus for sensing, tracking and responding to pressure changes in a flow system. The apparatus includes a fluid storage tank that is in fluid communication with the flow system. The apparatus also includes a control valve that is connected to the ... | 10/23/2007 |
| 7243672 | Flow control valve A spool bore (4) where a spool (6) slides, a concave portion (23) opened to the spool bore (4) and facing a return port 12 opened to the spool bore (4), and a land portion (11) disposed in an outer periphery of the sp... | 07/17/2007 |
| 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 |
| 7210460 | Bypass pressure regulator A low cost bypass pressure regulator preferably for a returnless fuel system supplying liquid fuel to a fuel injector of the combustion engine. The pressure regulator preferably has a valve head disposed at least in part in a valve chamber defined by a circumferenti... | 05/01/2007 |
| 7191795 | Venting valve having a cover cap A venting valve for a fuel vessel of a portable handheld work apparatus has a valve housing which includes a base body and a valve cover. A valve plate is mounted between the base body and the valve cover. The valve plate controls a pressure compensating channel con... | 03/20/2007 |
| 7163003 | Fuel system A fuel system for an internal combustion engine comprises a fuel injection apparatus (16) including at least one fuel injector (18), the fuel injection apparatus (16) being arranged to inject fuel at high pressure into an associated combustion s... | 01/16/2007 |
| 7025083 | Quick closing shut-off valve A quick closing shut-off valve includes an inlet, an outlet and a passage there between. A closing element blocks the passage when in the closed position. The closing element is interconnected to a piston via a pull rod. The piston is positioned within a working cha... | 04/11/2006 |
| 6994102 | Pressure regulating valve A pressure regulating valve which is comprised of a valve body being comprised of a cylinder, a spool slidably disposed in the cylinder with a clearance, the spool and the cylinder defining a pressure chamber and a space portion, and an urging member which urges the... | 02/07/2006 |
| 6988705 | Fluent control valve A continuously variable fluent control valve for controlling supersonic flow of gas. The valve has an upper plate with a very slightly angled physical control surface and a lower plate with a physical nozzle inlet. As the valve opens and closes during supersonic flo... | 01/24/2006 |
| 6974538 | Fuel filter for an internal combustion engine The invention relates to a fuel filter for an internal combustion engine, comprising a filter housing consisting especially of metal, and a filter element and a pressure-regulating valve located in said filter housing. The aim of the invention is to ensure that no n... | 12/13/2005 |
| 6916456 | Pressure relief device for medical instrument reprocessor A pressure regulating device for regulating the pressure exerted on a medical instrument in a reprocessor for microbially deactivating the medical instruments. ... | 07/12/2005 |
| 6827096 | Relief valve A relief valve includes an outer stem including a larger diameter fitting section and a smaller diameter fitting section, a movable valve element fitted in both fitting sections so as to be moved between an opening position and a closing position, a communication sp... | 12/07/2004 |
| 6681794 | Unloading valve A spool 33 provided with a flange 39 is inserted in a spool bore 32, and a pressing force of a spring 52 is always applied through the flange 39 to the spool 33 at its one end in a second pressure chamber 35. A fluid groove 60 is formed in an inner periph... | 01/27/2004 |
| 6647721 | Hydraulic system for suppressing oscillation in heavy equipment The invention provides a system for regulating pressure equalization in hydraulic mechanisms to suppress oscillation in heavy equipment. The system includes a first and second hydraulic lines, a crossover valve in communication with each of the first and ... | 11/18/2003 |
| 6648610 | Fuel injection system with structurally biased relief valve A fuel system arranged to deliver fuel at high pressure to a fuel injector through a high pressure fuel line defined, at least in part, within first and second housing parts of a pressure relief valve arrangement. The first and second housing parts define... | 11/18/2003 |
| 6601602 | Pressure-control valve A pressure-control valve (1) comprises a first control piston (1), which is disposed between a first pressure chamber (6), which adjoins the first control piston (1) and is connected to at least one working line (A, B), and a second pressure chamber (7), ... | 08/05/2003 |
| 6598705 | Lubricating system for internal combustion engine An oil passage extending from an oil pump to a discharge port in an internal combustion engine is, at its halfway point, branched into at least two oil passages, for example, a first oil passage and a second oil passage. One of the at least two branched o... | 07/29/2003 |
| 6554017 | Pressure regulating valve with secondary venting measures A pressure regulating valve having secondary venting measures. It comprises a control member for the control of the fluid connection between a primary duct and a secondary duct. The position of the control member is able to be influenced by a venting aper... | 04/29/2003 |
| 6306292 | Fuel filter with internal pressure regulator A fuel filter and pressure regulator assembly includes a housing, an inlet tube, an outlet and return tube each made of stainless steel. An annular filter element is disposed within the housing and abuts at one end a pressure regulator element which is mo... | 10/23/2001 |
| 6293296 | High-pressure fuel pump device A high-pressure fuel pump device which can facilitate the assembly of a high-pressure pump and a high-pressure regulator by standardizing a pump body or a valve housing. The pump body of the high-pressure pump has a high-pressure valve connection portion ... | 09/25/2001 |
| 6196246 | Freeze-resistant plumbing system in combination with a backflow preventer A plumbing system which, when ambient outdoor temperatures drop below freezing, circulates water to prevent it from freezing, utilizing a check valve to prevent water from flowing back into the water main and further utilizing a relief valve which can ope... | 03/06/2001 |
| 6186750 | Oil pump control valve spool with pilot pressure relief valve A valve spool (70) for an oil pump assembly (10) that includes a pilot pressure relief valve (80) to provide pilot pressure relief that increases the stability of the pump assembly (10) and eliminates the delay between the change in the discharge pressure... | 02/13/2001 |
| 6116263 | Proportional priority flow regulator with reverse flow control An inventive priority flow regulator comprises a valve assembly which is supported by a housing at one end and confines an electro-magnetic actuator at the other end. The housing has an inlet port, an outlet port, and a regulated port. The valve assembly ... | 09/12/2000 |
| 6105635 | Self regulating valve for a fluid exchange apparatus A self-regulating valve assembly for use with a fluid exchange system for matching fluid in-flow and out-flow from an accessed hydraulic system. Particular applicability of the valve assembly is found in fluid exchange systems for vehicle automatic transm... | 08/22/2000 |
| 6096199 | Oil filter cartridge with temperature sensitive bypass valve A lubricating oil filter cartridge is disclosed herein. The filter cartridge includes a bypass valve configured and arranged for opening at a selected oil pressure that is substantially higher at low oil temperatures than at the higher operating temperatu... | 08/01/2000 |
| 6086752 | Fuel filter with internal pressure regulator A fuel filter and pressure regulator assembly includes a housing, an inlet tube, an outlet and return tube each made of stainless steel. An annular filter element is disposed within the housing and abuts at one end a pressure regulator element which is mo... | 07/11/2000 |
| 6041453 | Jet directed pool skimmer with diverter valve A debris skimmer (10, 91) is designed to float adjacent the surface of a pool (14) to entrap floating debris including leaves (99). The skimmer defines a floway (20, 180) having a front (18) and a rear (28), with an entrance lip (36) at the front, and a r... | 03/28/2000 |
| 5979788 | Pressure washer valve assembly The present disclosure relates to a valve assembly suitable for use on a pressure washer pump. The valve assembly includes an unloader valve having an inlet port sized and configured to be connected directly to the pressure washer pump. The unloader valve... | 11/09/1999 |
| 5950653 | High pressure relief valve for use with a backflow preventer A backflow preventer assembly installed between a supply line and a service line, comprising one or more check valves and a high pressure relief valve operating to discharge water in the service line under a high pressure condition.... | 09/14/1999 |
| 5862986 | Hot melt adhesive applicator with metering gear-driven head A system usable for dispensing fluids including hot melt adhesives, supplied from a reservoir, onto a substrate. The system includes a plurality of fluid dispensing nozzles coupled to a fluid supply conduits disposed in a main manifold wherein fluid is su... | 01/26/1999 |
| 5850844 | Pressure reduction valve A pressure reduction valve for reducing the pressure in double-acting, closed hydraulic systems when they are not attended. The valve comprises a valve housing (1) with a boring (6), whose ends communicate with the respective circuits, and wherein there a... | 12/22/1998 |
| 5797732 | Variable capacity pump having a pressure responsive relief valve arrangement An oil pump effects a pumping action to deliver oil from an inlet port to a first outlet port and also to a second outlet port. An oil supply passage is connected to the second outlet port. A regulator value has a bore, a spool disposed in the bore, a pre... | 08/25/1998 |
| 5755251 | Full flow pressure trap unloader valve An unloader valve for a high pressure pumping system is disclosed. The unloader valve diverts fluid back to the pump inlet when the discharge line is blocked, and directs flow to the pump outlet when the line is unblocked. The unloader valve includes a va... | 05/26/1998 |
| 5711757 | Controller especially for pneumatic continuous passive motion devices A controller (10) having a housing (11) within which is positioned a moveable portion (13). The housing comprises an outer housing portion (12a) and an inner housing portion (12b) and having a vent (14) and a limit peg (22). Detent means (15) defines the ... | 01/27/1998 |
| 5706785 | Fuel supply system for internal combustion engines A fuel supply system for an internal combustion engine in which a fuel pump pumps fuel from a fuel tank to a fuel distributor and a pressure regulator is connected between the fuel pump and the fuel distributor to respond to pressure of the fuel pumped by... | 01/13/1998 |
| 5704386 | Multistage regulating valve A multi-stage regulating valve is provided with a cylinder and an adjusting piston guided inside it to which a regulating pressure can be applied from one side and a return force from the other. Depending on the regulating pressure, the piston keeps at le... | 01/06/1998 |
| 5694966 | Flow responsive pressure regulating unloader A flow responsive pressure regulating unloader suitable for use between a positive displacement fluid pump and a fluid consuming device connected to the pump. The unloader includes a housing having an inlet port connected to an outlet port, and a by-pass ... | 12/09/1997 |
