Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 7556057 | Gas pressure regulator A pressure regulator for dispensing CO2 gas from a pressurized cylinder which has a reduced probability of freezing when liquid carbon dioxide is converted to the gaseous phase. A plunger which is configured to increase the length of the gas flow path bet... | 07/07/2009 |
| 7418973 | Device to reduce noise in pressure regulators A pressure regulator comprising a body portion having an inlet port, an outlet port, and a flow passage positioned therebetween is provided. A valve member and a valve seat are positioned in the flow passage. A spring is coupled to the valve member to urge the valve... | 09/02/2008 |
| 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 |
| 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 |
| 7093605 | Pressure control device for a pipeline A pipeline assembly for transporting a fluid such as oil, gas and water along a fluid path extending in the pipeline has a pressure control device incorporated therein. The pressure control device regulates the pressure of the fluid downstream the pressure control d... | 08/22/2006 |
| 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 |
| 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 |
| 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 |
| 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 |
| 6039071 | Valve seal mechanism When a valve body of a pressure-reducing valve is displaced in the direction indicated by the arrow B, a seal pad of a valve seal mechanism on the valve body abuts against a ridge on a seat, which enters the seal pad to provide a seal therebetween. When t... | 03/21/2000 |
| 6024117 | Valve guide structure A recess and another recess having an enlarged diameter with respect to the recess are defined in a main body, wherein a valve guide body is inserted into the recess. Projections of the valve guide body engage inside grooves defined in a wall portion cons... | 02/15/2000 |
| 5971013 | Pneumatic regulating pressure reducing valve In a pneumatic pressure-reducer, the control rod for the control valve is supported and guided by two spring washers whose radial stiffness is at least around 200 times greater than the axial stiffness. Each washer comprises internal and external annular ... | 10/26/1999 |
| 5810041 | Pressure regulator A pressure regulator for the first reduction stage of a two-stage aqualung. The regulator includes an inlet passage connected to a supply of breathable gases at high pressure; an outlet passage for the gases leading to a second stage regulator; a valve be... | 09/22/1998 |
| 5727588 | Depressurizing connector A depressurizing connector includes a body which has an interior chamber formed therein, an inlet in fluid communication with the interior chamber for connecting to an external pressurized air source to supply pressurized air at a first pressure to the in... | 03/17/1998 |
| 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 |
| 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 |
| 5261447 | Pneumatic regulating valve The invention is an improvement in a pneumatic regulating valve of the type having a main flow path and a bleed passage. In the improvement, the bleed passage is in parallel with the main flow path and regulates a downward-trending pressure at the outlet ... | 11/16/1993 |
| 5226392 | Fuel pressure control valve for internal combustion engines A pressure control valve having a valve body 2 consisting of metal material and a spring 10 determining the control pressure of the valve and designed as a flat pressure spring with radial arms, the spring being arranged in a chamber 20 of valve body 2 wh... | 07/13/1993 |
| 5027644 | Method and apparatus for injecting acoustic signals into live gas mains A method and apparatus for generating and introducing an acoustic signal into a piping system, such as a natural gas distribution system. A first case is sealably secured to a second case to form a diaphragm case. A diaphragm is sealably positioned within... | 07/02/1991 |
| 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 |
| 4413649 | Air pressure regulator A nine position air pressure regulator includes a main regulator body member having an unregulated first pressure cavity, a regulated second pressure cavity and a valve seat between the cavities. A diaphragm is in sealing relationship to the second cavity... | 11/08/1983 |
| 4287909 | Valve for developing variable output pressure A valve is disclosed which receives a fluid such as gas at an input port and varies the fluid pressure at the output port in response to an electrical control signal. In one embodiment, a magnet-coil combination responds linearly to a control current to v... | 09/08/1981 |
| 3990470 | Means for controlling fluid flow A means for controlling fluid flow including a housing having an input port adapted to be connected to a source of fluid under pressure and also havng an output port adapted to be connected to an apparatus requiring controlled fluid flow or pressure. The ... | 11/09/1976 |
