Celebrity Inventors
Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7600529 | Dual gas pressure regulator for a household appliance Gas pressure regulator valve adapted to a household appliance for the supply of a flow of NG or LPG gas that comprises a valve body (11) with an inlet conduit (12), an outlet conduit (13) of the gas at a nominal pressure, a pressurised chamber (... | 10/13/2009 |
| 7360555 | Gas regulator with altimetric adjustment The invention relates to a gas regulator which is intended to be mounted on a gas delivery pipe connecting a gas source to a user device. The inventive regulator comprises a pressure regulation mechanism which is controlled by the movement of a mobile element. The i... | 04/22/2008 |
| 7226034 | Solenoid valve actuator A solenoid operated valve is provided that comprises an inlet, an outlet, a valve seat in the flow path between the inlet and the outlet, and a valve member slidably mounted for movement in a direction aligned with but perpendicular to the plane of the valve seat, a... | 06/05/2007 |
| 7191768 | Gas fuel feed device It is an object of this invention to provide a gas fuel supply system in which a controllable range in the fuel injection quantity control by an injector is enlarged. According to one preferable aspect of this invention, the gas fuel supply system comprises an injec... | 03/20/2007 |
| 7192665 | Regulator for fuel cell A regulator for use with fuel cells, which is mounted in a pressure controller of a fuel cell system, has a first diaphragm flexible under the pressure of pilot air supplied as an oxidizing agent to a pilot chamber, a second diaphragm flexible under the pressure of ... | 03/20/2007 |
| 7082963 | Gas pressure reduction valve A first retainer and a second retainer are provided between a diaphragm and an upper housing. A first spring urges the diaphragm downward between the first retainer and the diaphragm. A second spring having an outer diameter smaller than that of the first spring urg... | 08/01/2006 |
| 7007713 | Pressure control apparatus The present invention provides a pressure control apparatus for controlling the pressure at an output port without reducing the effective sectional area by controlling a main valve through the switching operation of a small-sized directional control valve, wherein t... | 03/07/2006 |
| 6986338 | Fluid flow pressure regulator A fuel vapor pressure regulator by which the input pressure of an input fluid is regulated by the opening and closing of a valve unit controlled by a piston pressure sensor, the operation of which is, in turn, controlled by a movement of a preset bias, the output pr... | 01/17/2006 |
| 6935362 | Pilot valve There is provided a pilot valve (50), suitable for use in water and gas supply systems, the valve including biassing means (57), to control a gate (55), for controlling fluid flow through a control chamber (51), and a second chamber (5... | 08/30/2005 |
| 6866061 | Back pressure valve with dynamic pressure control A back pressure valve, comprises: a first housing including a first chamber formed therein having an inlet and an outlet for a first fluid; a second housing including a second chamber formed; a flexible diaphragm having an outer peripheral edge portion abutting the ... | 03/15/2005 |
| 6758238 | Combined pressure regulator and shut-off valve A regulator valve has a housing with a seal member therein. First and second plungers are movable in the housing toward and away from the seal member. The plungers are sealed to the housing and have passages therethrough. The plungers are biased toward the seal memb... | 07/06/2004 |
| 6705342 | Modulating gas valve with natural/LP gas conversion capability An electronically modulating gas valve comprising a modulating solenoid for simultaneously displacing two servo regulator diaphragms, one for controlling LP Gas outlet pressure and another for controlling Natural Gas outlet pressure. A switch is used to select opera... | 03/16/2004 |
| 6691798 | Variable hand pressure activated power tool A hand-held power tool for use in hand working operations including a hand pressure sensing element for adjusting the power of the tool. More specifically, the invention provides a hand engraving power tool that is activated from absence of power to much ... | 02/17/2004 |
| 6641004 | Dispensing assembly for automatically adjusting the carbon dioxide level in beer in a draught beer keg A dispensing assembly for automatically adjusting the carbon dioxide level in beer in a draught beer keg (1), said dispensing assembly comprising a beer tap (3) to be placed in the outlet opening (2) of the draught beer keg, a tapping cock (5) connected t... | 11/04/2003 |
| 6516827 | Gas regulator for flowmeter A measuring device for gas flows including a gas regulator positioned immediately upstream of a volumetric meter for determining the volume of a gas passing therethrough. The measuring device includes means for modifying the pressure of the gas expansion ... | 02/11/2003 |
| 6478040 | Gas supplying apparatus and gas substitution method Gas supplying apparatus and gas substitution method where machinery and parts constituting the gas system are not damaged, and where gas substitution in the gas system is carried out in a short time with good efficiency. The gas substitution, method for s... | 11/12/2002 |
| 6405722 | Single stage regulator and method for regulating compressed air therefor A single stage regulator is disclosed wherein a piston-type configuration is utilized to regulate an input working pressure as high as 4,500 PSI, to an output delivery pressure from 200 PSI to 1100 PSI. The single stage regulator can be used on paintball ... | 06/18/2002 |
| 6363959 | Fluid pressure regulator with differential pressure setting control A fluid pressure regulator and method of operating the same particularly adapted for use in alternating flow and no flow modes as in the batchwise delivery of pressurized gases used in semiconductor manufacture. Such pressure regulator and method include ... | 04/02/2002 |
| 6341620 | Pressure limiting valve A pressure limiting valve includes an inlet and an outlet for a fluid, which includes a valve body which cooperates with a valve seat in such a manner that it opens or closes a flow connection for the fluid between the inlet and the outlet when a limiting... | 01/29/2002 |
| 6302143 | Two-stage servo gas pressure regulator module A two-stage fluid pressure regulating valve has a solenoid operated lever for moving a regulator shaft between two positions. The regulator shaft biases the regulator spring of a flow rate control diaphragm valve. When the solenoid is actuated the lever i... | 10/16/2001 |
| 6296012 | Fuel pressure regulator with fuel temperature responsive shape memory calibration A returnless fuel regulator includes a diaphragm assembly dividing the regulator into a control chamber for calibration purposes and a fuel chamber in communication with fuel under pressure from a supply and a fuel rail which receives fuel under regulatio... | 10/02/2001 |
| 6170507 | Gas valve with natural/LP gas conversion capability A convertible two-mode pressure regulator in which a main valve regulates fluid flow between an inlet and an outlet in response to a control pressure produced by a mechanically operated regulator valve, the control pressure depending on the outlet pressur... | 01/09/2001 |
| 6076549 | Pressure control device Pressure control device, characterized in that it comprises, in combination with valve means having an open and a closed position and urged to said closed position by a pressure thrust, elastic means opposing the closure of said valve means by exerting th... | 06/20/2000 |
| 6056008 | Intelligent pressure regulator An intelligent pressure regulator for maintaining a fluid in a process at a predetermined pressure includes an electronic controller which enhances regulator performance and provides self-diagnostics and communications capabilities. The electronic control... | 05/02/2000 |
| 6006780 | Two-stage, warm-gas high pressure regulator A pneumatic regulating valve that operates on high-temperature, high-pressure gases. This invention reduces the upstream pressure of a flow of gas, which can be as high as 10,000 psia, down to a level usable by downstream control valves, which may require... | 12/28/1999 |
| 5967167 | Remote controlled drinker system A poultry drinker system includes a number of drinker lines each supplied from a common high pressure water supply through a water pressure regulator. Each regulator includes a reference spring establishing a default minimum water pressure. A centralized ... | 10/19/1999 |
| 5799688 | Automatic flow control valve A pressure valve having a fluid inlet, a first chamber, a throughbore, a second chamber, a fluid outlet and a valve stem. The valve stem is mounted within a valve body and has several different diameters. A pressure condition within one or more of the cha... | 09/01/1998 |
| 5787925 | Pneumatically servoed gas pressure regulator A pneumatically servoed gas pressure regulator capable of providing a relatively wide range of gas flow rates with precision outlet pressure control includes a dome loaded gas pressure regulator and a pressure sensor controller integrated in a single unit... | 08/04/1998 |
| 5706853 | Valve, especially a thermostatic expansion valve A valve, especially a thermostatic expansion valve, has a setpoint spring which bears on a plate having a sloping face. A setpoint adjusting device is provided in a housing connecting tube. The adjusting device has a pressure-applying piece having a conta... | 01/13/1998 |
| 5694975 | Pressure regulator A pressure regulator includes a housing having a chamber that receives a pressure responsive member 30. The pressure responsive member 30 includes an internal charge 90 that allows a movable portion 68 of the regulator to react in response to pressure dif... | 12/09/1997 |
| 5657787 | Gas pressure reducing regulator A gas pressure regulator comprising a body member which mounts a valve between the inlet and outlet gas passages, and which also includes a tubular sleeve which communicates with the outlet passage. A pressure adjusting cap is threadedly mounted to the tu... | 08/19/1997 |
| 5642724 | Fluid mixing systems and gas-fired water heater The disclosed methods and apparatus for mixing a secondary fluid with a primary fluid have utility in venturi and other fluid mixing systems in agriculture, fluid, fuel combustion and other fields where liquid or gaseous chemicals, liquid or gaseous fuels... | 07/01/1997 |
| 5540252 | Pneumatically stabilized inline valve A variable area inline valve receives a pressurized fluid and regulates the amount of pressurized fluid flowing through the valve. The valve includes a piston assembly which slides longitudinally along a center line of the valve to control a variable flow... | 07/30/1996 |
| 5515930 | Handheld pneumatic power tool apparatus A handheld pneumatic power tool apparatus is provided for use with a supply of pressurized air. The apparatus includes a handpiece and a pressure regulator assembly for regulating the pressure of air supplied to the handpiece. The handpiece includes a cyl... | 05/14/1996 |
| 5435343 | Two stage natural/LP gas convertible pressure regulator valve with single servo controller A convertible two-stage pressure regulator in which a main valve regulates fluid flow between an inlet and outlet in response to a control pressure produced by a servo regulator valve, the control pressure depending on outlet pressure and the force provid... | 07/25/1995 |
| 5423342 | Temperature compensating pressure regulator The temperature compensating pressure regulator (TCPR) allows a modified constant output pressure regulator to change its output pressure in response to changes in the ambient temperature. Furthermore, the changes in the ambient temperature are extrapolat... | 06/13/1995 |
| 5372159 | Engine fuel flow control mechanism An engine fuel line flow control mechanism utilizing a valve located within a fuel line. The valve includes a seat and a movable seal which is capable of regulating the flow of fuel through the fuel line. An actuator is linked to the valve and may include... | 12/13/1994 |
| 5218991 | Regulator flow control A method and apparatus for a pressure regulator to control the flow of gases through the regulator and control the escape of gases from the regulator base to the regulator bonnet. The pressure regulator contains a flexible rubber diaphragm contacting a fl... | 06/15/1993 |
| 5183072 | Automatic switchover valve An automatic switchover valve includes first and second regulator valves arranged to oppose each other axially in a single housing, and ducted in a parallel configuration within the housing. Each regulator valve includes an inlet port, a diaphragm poppet ... | 02/02/1993 |
| 5178799 | Carbonated beverage dispensing apparatus In a carbonated beverage dispensing apparatus including a dispensing valve, carbon dioxide gas is introduced into a liquid to be dispensed through the dispensing valve, and a temperature sensor is arranged to sense the temperature of the liquid, either in... | 01/12/1993 |
