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 |
| 7243903 | Valve diaphragm with a compression restraining ring, and valve including same A valve has a body, a bonnet, an actuator mechanism, and a flexible diaphragm adapted to be positioned between the bonnet and the body. The flexible diaphragm has a central portion and a peripheral portion, and the central portion is covered with a thin alloy layer.... | 07/17/2007 |
| 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 |
| 7165573 | Compressed natural gas pressure regulator A pressure-reducing regulator comprising a regulator body having an inlet port, an outlet port, and a flow path. A valve element is moved relative to a valve seat by a diaphragm assembly to control gas flow along the flow path. The regulator comprises one or more of... | 01/23/2007 |
| 7157168 | Regulator A back pressure chamber is defined at an end of a rod for acting in a direction to cancel out a pressure applied to a valve head, and an aspirator chamber is defined closely to the valve head for developing a pressure lower than a secondary pressure due to a suction... | 01/02/2007 |
| 7147081 | Rack-and-pinion steering system for motor vehicles A rack-and-pinion steering system for motor vehicles includes a rack, which is mounted in a housing such that it is longitudinally displaceable and kept in constant engagement with a pinion by a pressure piece, is connected at both ends to in each case one steering ... | 12/12/2006 |
| 7140387 | Regulated gas supply system A regulated gas supply system having a body defining a pressurized gas reservoir connected to a high-pressure regulator that regulates the high pressure gas from the gas reservoir to disperse the gas at a desired pressure. The gas regulating assembly includes a pist... | 11/28/2006 |
| 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 |
| 7080655 | Regulator for low concentration corrosive and reactive gases A filter-less regulator is implemented for use in fluid flow systems that process low concentration reactive gases. The regulator includes an inlet, an outlet and a fluid flow path defined between the inlet and outlet by internal surfaces of the housing. The regulat... | 07/25/2006 |
| 7069675 | Power tilt apparatus In a power tilt apparatus in which an operation state of a cylinder apparatus is switched between an extension side and a compression side in accordance with an oil feeding direction of a pump apparatus by a switching valve apparatus provided in a pipe passage conne... | 07/04/2006 |
| 7021329 | Vaporizing pressure regulator A vaporizing pressure regulator is provided, comprising: a valve body having a flow path therethrough and a pressure responsive valve carried in the flow path to regulate the flow of a fluid; and a heat source operatively associated with the valve body to heat fluid... | 04/04/2006 |
| 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 |
| 6328054 | Balanced fluid pressure regulator A balanced fluid pressure regulator of the disclosed embodiment comprises a balancing bellows inside a sensing bellows to minimize the supply pressure effect for improved performance while reducing the size and weight of the regulator in comparison to a c... | 12/11/2001 |
| 6273116 | Method and device for opening a valve, especially a load changing valve of an internal combustion engine In a method for opening a valve, which valve separates a flow channel from a working chamber or connects it therewith and which is embodied as a plate valve that projects upon opening into the working chamber, energy is withdrawn from a flow from the work... | 08/14/2001 |
| 6079434 | Propane regulator with a balanced valve The invention relates to a pressure regulator for propane and liquefied petroleum with a balanced valve. An inlet port (10) receives supply pressure and an outlet port (14) receives output pressure. A threaded shaft (28) engages a pocket in a spring butto... | 06/27/2000 |
| 5697398 | Fluid pressure regulator with boost tube unit including stem guide and lever retainer A method of manufacturing a diaphragm assembly for a fluid pressure regulator includes the steps of providing a diaphragm head unit having a first side and a spring seat, providing a fabric layer, providing an elastomer layer, applying an adhesive to the ... | 12/16/1997 |
| 5586569 | Pneumatic pressure regulator A fluid pressure regulator having various features that contribute to a low cost regulator that is easy to assemble from components that require less machining than existing regulator designs of comparable performance. The invention is characterized by (i... | 12/24/1996 |
| 5503182 | Air pressure adjusting module balancing value and its chamber structure An air pressure adjusting module compensating balancing valve and its chamber structure is disclosed. A dovetail-shaped rod perpendicular to a horizontal channel is provided at a connection. At the bottom face of the horizontal channel is provided with co... | 04/02/1996 |
| 5465750 | Two-stage regulator A two-stage regulator includes first and second regulator units in series. The regulator units are mounted upon a unitary base which forms the lower portion of each regulator and includes the inlets and outlets for each regulator unit as well as a passage... | 11/14/1995 |
| 5443083 | Pressure-reducing regulator for compressed natural gas The valving element is positively tied to a pressure-sensing and -responsive diaphragm, via a diaphragm-carried insert. The connection is so arranged as to permit relative angular displacement, between the valving element and the diaphragm, so that cockin... | 08/22/1995 |
| 5381819 | Pressure-reducing regulator for compressed natural gas The valving element is positively tied to the diaphragm, through a diaphragm-carried insert which has a flow-accommodating groove formed therein to facilitate instant outlet pressure following a gas supply shut off. Too, the valving element cooperates wit... | 01/17/1995 |
| 4754778 | Velocity boost body with wrap-around pitot tube A pressure relief diaphragm type regulator valve includes a velocity boost body having an annular-shaped wrap-around pitot tube communicating with the vena contracta of a flowpath. The pressure at the vena contracta is communicated to the diaphragm by a s... | 07/05/1988 |
| 4736767 | Fluid flow controller A fluid flow controller utilizes a vacuum assist to decrease accummulation. The controller comprises a poppet and a poppet seat between the fluid inlet and the fluid outlet. An axially movable piston is connected to the poppet so that the piston and poppe... | 04/12/1988 |
| 4489751 | Pressure reducing regulator for oxygen service The pressure reducing regulator of the present invention is designed for oxygen service to prevent oxygen burn through. The regulator includes a diaphragm assembly which uses a metallic shield to protect the diaphragm from hot gases or combustibles issuin... | 12/25/1984 |
| 4450858 | Gas pressure reducing regulator A gas pressure reducing regulator having a valve assembly with a slidable valve member containing a valve seat disposed within a valve chamber communicating with the inlet opening connection to a source of high inlet pressure through serially connected pa... | 05/29/1984 |
| 4385887 | Combustion control apparatus A combustion control apparatus comprises a premix combustion burner requiring primary air, an injector disposed in a primary air passage and including a constricted section having a fixed diameter and length, an enlarged section communicating with the con... | 05/31/1983 |
| 4148335 | Relief valve improvement The purpose of the invention is to provide a pilot-valve-controlled safety valve for venting excess pressures without allowing any noxious gas to exhaust to atmosphere in the vicinity of personnel. This purpose is achieved by the provision of a safety valve an... | 04/10/1979 |
| 4089343 | Automatic flow control valve assembly A valve assembly for automatically controlling the flow of a fluid comprises a casing having formed therein a first chamber, a second chamber normally communicating with the first chamber and a pressure chamber in constant fluid communication with the sec... | 05/16/1978 |
| 3991785 | Flow regulator valve An air flow regulator is provided which may be utilized in diving or scuba equipment. A diaphragm urges a pivoted leg assembly into pivoted motion and the latter, being coupled to a valving means, provides controlled passage of air to the user. A sloped, ... | 11/16/1976 |
