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 |
| 7152628 | Anti-cavitation valve assembly A valve assembly for reducing cavitation includes a seat disposed within a valve housing intermediate a fluid inlet and outlet thereof. A disc guide is associated with the seat so as to be slidably moveable relative to the seat. The seat includes a wall defining an ... | 12/26/2006 |
| 7089960 | Ball valve The present invention is a ball valve which may be attached to a fluid pipe for connection/disconnection between an entrance and an exit. More particularly, the present invention is a ball valve having a discharge orifice communicating with ambient air in addition t... | 08/15/2006 |
| 7063098 | Flush cartridge apparatus and method of use Specifically, the present invention is a flush cartridge apparatus used in the controlled removal of accumulated debris from a water distribution system used within a residential and/or commercial structure. The flush cartridge apparatus is generally cylindrically s... | 06/20/2006 |
| 7028712 | Skirt guided globe valve A skirt guided control valve provides streamlined flow and minimum resistance to flow in flow up and flow down conditions when the valve is open. The skirt guided control valve has a fluid inlet, a fluid outlet, a passageway disposed between the fluid inlet and flui... | 04/18/2006 |
| 6997135 | Valve for a milking apparatus A valve assembly adapted to be used in a milking operation where the valve assembly comprises an actuator portion and a valve portion where the valve portion has a milking position and a cleaning position where when in a milking position a transverse slot located be... | 02/14/2006 |
| 6968741 | Portable pressure transducer, pneumotach for use therewith, and associated methods A system for sensing respiratory pressure includes a portable pressure transducer configured to be carried by or proximate to a respiratory conduit, such as a breathing circuit or a nasal canula. The portable pressure transducer may removably couple with a pneumotac... | 11/29/2005 |
| 6959915 | Attachment for a throttle plate to reduce sound A block of material is attached to a surface of a throttle plate in a throttle body assembly for the purpose of reducing sound emanating from the throttle plate region. The block of material has a first edge attached proximate to a perimeter of the throttle plate an... | 11/01/2005 |
| 6921378 | Anti-reflux drainage devices and methods An anti-reflux drainage device includes an elongated member defining a lumen, and a valve disposed along the elongated member. The valve can include one or more lumens in fluid connection with the lumen of the elongated member, a socket, a shaft disposed in the sock... | 07/26/2005 |
| 6832621 | Transmitter isolation ball valve A ball valve assembly of the quarter-turn type for use in isolating an electronic level transmitter comprising a valve body having an inner chamber, an inlet or tank-side port, an outlet or transmitter side port, a valve body axis defined by the inlet and outlet por... | 12/21/2004 |
| 6681792 | Reduced-length sleeve valve A multiple opening sleeve valve is provided with a gate movable to control flow or pressure without the need for axial movement of a component through a pressure-containing seal. A gate actuator can include a drive rod and nut coupled to a gate substantia... | 01/27/2004 |
| 6427715 | RV holding tank connector and method A connector for an RV sewage holding tank includes a water inlet and a rotatable valve connected thereto. The valve has a plurality of positions and a spherical nozzle on the valve allows manual rotation whereby fresh water can be directed towards the hol... | 08/06/2002 |
| 6336468 | Chemical supply tube isolation system A supply tube isolation system for use with a chemical delivery system includes a feedback tube connected between the manifold and each of the supply tubes connected between the chemical supply containers and the chemical pumps of the chemical delivery sy... | 01/08/2002 |
| 6314981 | Device for connecting and transfer of fluid between a supply reservoir and a receiving reservoir Process and device for connecting at least one supply reservoir (A), such as a storage reservoir, to at least one receiving reservoir (B), such as a tank truck, for the transfer of a fluid from the at least one supply reservoir (A) to the least one receiv... | 11/13/2001 |
| 6213450 | Valves The invention provides a valve 10,30 for connecting first and second conduits 12,14. The valve 10,30 comprises; a valve member 16 rotatably mounted in a housing 18, to define a space 22 between the valve member 16 and the housing 18; and inflatable seal m... | 04/10/2001 |
| 6209570 | Automatic flush valve An automatic flush water distribution system for use in an evaporative cooling system includes a water distribution pipe adapted to be connected to a source of pressurized water. The pipe has a plurality of water distribution ports formed therein and a ve... | 04/03/2001 |
| 6132203 | Method and apparatus for burning oils of varying viscosity Disclosed is an oil burning system that is capable of burning oils of varying viscosities, including high viscosity waste oils and low viscosity heating oils. Suitable as a new installation or a retrofit modification, the present invention incorporates th... | 10/17/2000 |
| 6119726 | Apparatus for effecting transfer of fluid from any one of a plurality of fluid sources to a single fluid outlet An apparatus and method for effecting transfer of fluid from any one of a plurality of fluid sources to single fluid outlet. The apparatus comprises a valve head having (i) a bore longitudinally extending therethrough, (ii) a plurality of radially extendi... | 09/19/2000 |
| 6000417 | Bi-directional magnetically-operated check valve for high-purity applications A check valve is described which employs a magnetic biasing component, disposed external to the valve body, to exert force on a poppet, at least a portion of which is ferrous. In a "normal" mode of operation, the poppet is urged against the inlet end surf... | 12/14/1999 |
| 5975111 | Waste tank clog removal system A waste tank clog removal system is provided for removing clogs during draining of a waste tank through a drain line. This system removes the clog by flushing the clog back into the waste tank. A bypass valve and a hose assembly are added to an existing w... | 11/02/1999 |
| 5957152 | Select valve purge A purge valve for use with a chemical select valve comprises, in a preferred embodiment, an enlarged chamber in the vacuum impelled feed line to the select valve. The chamber is formed by resilient walls, collapsible upon vacuum operation to draw chemical... | 09/28/1999 |
| 5850845 | Backflush valve for milking machine system An improved milking machine backflush valve (2) includes inlet and outlet plates (18, 20) between which a slide pad (16) is slidably housed. The inlet plate has a milk inlet (24) and the outlet plate has a milk outlet (28). The slide pad couples the milk ... | 12/22/1998 |
| 5797421 | Dry hydrant siphon assembly A siphon jet is attached to a dry hydrant which is in communication with a body of water to increase the flow of fluid to the dry hydrant and assist in overcoming the effects of atmospheric pressure and gravity in drawing the water. A pressurized fluid so... | 08/25/1998 |
| 5657786 | Zero dead-leg gas control apparatus and method A gas cabinet manifold is free of dead-legs both during delivery of process gas to a semiconductor fabrication tool location and during purging of the manifold. The manifold includes three similar dual valve assembly blocks. Each valve assembly block incl... | 08/19/1997 |
| 5601107 | Automated process gas supply system for evacuating a process line A process gas supply system at the gas supply point includes an automated means for evacuating gas in a process line fed by the process gas supply system when an abnormal event occurs. The process gas supply system of this invention eliminates the need fo... | 02/11/1997 |
| 5588459 | Device for facilitating removal of wastewater and sewage from a recreational vehicle A sewage removal device for use with a recreational vehicle. The device is comprised of a housing attachable to the sewage drain conduit of the recreational vehicle. Sewage from the recreational vehicle drains into a cavity in the housing, and a water inl... | 12/31/1996 |
| 5584314 | Self-cleaning inlet head for a fluid The invention provides a self-cleaning inlet head for a fluid, operable in a first, draining, mode and in a second, backflushing, mode, including a body having a front end and a rear end; a piston slidably mounted in the body and having having a front fac... | 12/17/1996 |
| 5509437 | Dry hydrant check valve A dry (unpressurized) hydrant utilizes a hydrant pipe wherein a submerged end carrying a strainer assembly is placed at a predetermined depth within a body of water, such as a lake or a pond, with the unsubmerged end being located above ground adjacent th... | 04/23/1996 |
| 5417728 | Reverse flush gas valve A gas valve which has provision for a reverse flow pulse of high pressure gas. The valve includes a reservoir which is loaded with high pressure gas during normal operation which is released into the main flow path by an applied pressure reduction. The va... | 05/23/1995 |
| 5398716 | Structure of air compressor waste drain valve An air compressor waste drain valve having an automatic drain hole and a dust collector provided respectively at the center and circumference of the inside base of the drain valve so that the moisture produced by the air compressor can be stored in the du... | 03/21/1995 |
| 5353990 | Liquid additives dispenser for sprinkler systems A flow controlled dispenser adds liquid additives at a rate proportional to the flow of the liquid receiving the additives.... | 10/11/1994 |
| 5246168 | Liquid additives dispenser for sprinkler systems A flow controlled dispenser adds liquid additives at a rate proportional to the flow of the liquid receiving the additives.... | 09/21/1993 |
| 5178684 | Method for cleaning water pipe A method and an apparatus are disclosed for cleaning water pipe. The pipe is preferably connected to a source of water which normally flows through the pipe to an outlet. A valve is positioned at the outlet and is rapidly opened and closed. When the valve... | 01/12/1993 |
| 5042522 | Airway adapter with backflush tube A backflushing system for an inlet filter in an airway adapter in a gas flow sampling and analyzing system includes a back flush fluid supply conduit and sampling conduit connected to the airway adapter by a single coupling element. Flow of back flush flu... | 08/27/1991 |
| 4953581 | Self draining valve member for use in underground water lines A self draining valve member for use with a water line of an underground water distribution system. The valve member comprises a cylindrical housing having screw threads formed on at least a portion of the outer surface thereof, with the screw threads bei... | 09/04/1990 |
| 4573492 | Discharge control valve A discharge control valve wherein the inside of a valve casing is partitioned by a pair of horizontal upper and lower partition walls into an upper chamber, an inlet chamber with an inlet port and an outlet chamber with an outlet port in the order named, ... | 03/04/1986 |
| 4563312 | Gas supplying apparatus A gas supply apparatus for supplying gaseous raw material of an article to a processing apparatus, including at least one main vessel for storing liquid raw material of the article and supplying the gaseous raw material to the processing apparatus, an aux... | 01/07/1986 |
| 4517824 | Solvent dumping apparatus A solvent dumping apparatus is described having an inlet enclosure coupled to the inlet of a detector and an outlet enclosure coupled to the outlet of a detector. Venting means are provided for both enclosures, one of which is controllable; means are prov... | 05/21/1985 |
| 4508138 | Polyjet valve with backwash A polyjet valve has an inlet opening into an inlet chamber normally communicating through a movable polyjet sleeve in variable amounts and in one direction with an outlet chamber having an outlet. There is a block to close the outlet and a conduit to esta... | 04/02/1985 |
| 4442859 | Control valve A valve which controls either the injection of fluid from an exterior source into the interior of the valve housing or the exhausting of fluid pressure from the valve housing. The valve is especially adapted for controlling the injection of fluid into a w... | 04/17/1984 |
| 4390049 | Apparatus for reciprocating liquid in a cooling system of an internal combustion engine A portable air-operated apparatus for cleaning, flushing, and filling a liquid cooling system of an internal combustion engine. The cooling system is cleaned by sequentially moving liquid in opposite directions in the cooling system. The apparatus also fu... | 06/28/1983 |
