Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 7429030 | Variable radial flow rate control system A variable radial flow rate control valve including a body forming a bore along the longitudinal axis thereof for transporting a fluid through the body, a fixed choke member fixedly positioned about the bore, the fixed choke member forming a fixed aperture, a rotati... | 09/30/2008 |
| 7410146 | Drain valve with flow control A drain valve allows liquid to flow into or out of a liquid-container product by use of a restriction cap having a control ring that twists in and out of a base ring in order to control the flow. The restriction cap has a flow valve, having a top, apertures, and a b... | 08/12/2008 |
| 7341240 | Valve A drain valve to be used with numerous drain applications, such as draining fluid from an engine, includes in an exemplary embodiment a valve body, a first and second o-ring and a valve sleeve. The drain valve eliminates the need for a tool, such as a wrench, to dra... | 03/11/2008 |
| 7267322 | Wet well valve A valve assembly provides the ability for internal tank operations providing novel and unique methods for intricate measurement, monitoring, sampling, mixing, isolation, evaluation or other tasks desired inside tanks, vessels, piping or flow applications. The valve ... | 09/11/2007 |
| 7258323 | Variable radial flow rate control system A variable radial flow rate control valve including a body forming a bore along the longitudinal axis thereof for transporting a fluid through the body, a fixed choke member fixedly positioned about the bore, the fixed choke member forming a fixed aperture, a rotati... | 08/21/2007 |
| 7195229 | Automatic sampler In a direct injection type automatic sampler, a sampling needle having a liquid sample collected from a sample vessel by using suction force of a pump is inserted into an injection port. Then, a flow path-switching valve is rotated to switch a flow path to make a fl... | 03/27/2007 |
| 7168683 | Oil drain valve A drain valve to be used with numerous drain applications, such as draining fluid from an engine, includes in an exemplary embodiment a valve body, an o-ring and a cap. In another exemplary embodiment, the drain valve includes a valve body, an o-ring, a cap retainer... | 01/30/2007 |
| 7114703 | Valve A drain valve to be used with numerous drain applications, such as draining fluid from an engine, includes in an exemplary embodiment a valve body, a first and second o-ring and a valve sleeve. The drain valve eliminates the need for a tool, such as a wrench, to dra... | 10/03/2006 |
| 6953184 | Rotary damper assembly An apparatus for regulating flow of fluid received from a fluid source has an inner cylinder with inlet and outlet apertures, and an outer cylinder that also has inlet and outlet apertures. The inner cylinder is nested within the outer cylinder and rotatable with re... | 10/11/2005 |
| 6913245 | In-line shut-off valve and method of assembling same An in-line water shut-off valve is provided including a tailpipe which is attached to a main water line in order to form a “T” or 90° “L” which protrudes from the wall of the building and upon which is attached a cap which is threadably and rotatably attach... | 07/05/2005 |
| 6880638 | Device for an opening in an outer sleeve of a sleeve valve and a method for the assembly of a sleeve valve A sleeve valve for fluid flow between a hydrocarbon reservoir and a well including a fixed outer sleeve with openings and a movable inner sleeve with openings which can be aligned and misaligned with the outer sleeve openings in order to admit or shut off the fluid ... | 04/19/2005 |
| 6869063 | Sleeve valve and method for its assembly A sleeve valve device for fluid flow between a hydrocarbon reservoir and a well in the hydrocarbon reservoir comprises a fixed outer sleeve (1) and an inner sleeve (2) which is rotatable in order to bring apertures (3, 4) in the outer sleeve and... | 03/22/2005 |
| 6626419 | Fluid coupling valve assembly A fluid coupling valve assembly includes a coupler connected with a closure. The closure includes a closure valve rotatably connected with a closure body. The closure valve is actuatable to open/close the closure to allow/prevent fluid dispensing. The cou... | 09/30/2003 |
| 6523568 | Combination air vent/probe port and method of constructing same According to one embodiment of the invention, a combination air vent/probe port includes an outer body adapted to couple to a conduit, the outer body formed with a longitudinal bore defining an inner wall, the longitudinal bore having a seating surface. T... | 02/25/2003 |
| 6499717 | System and method of use for a refrigerant quick-connect coupling A method of use and apparatus for a quick connect coupling in a fluid system as disclosed herein. The quick connect coupling includes a female coupling assembly and a male coupling assembly. The female coupling assembly includes a female cone housing nest... | 12/31/2002 |
| 6382593 | Fluid coupling A fluid coupling for dispensing fluids, suitable for connecting a fitment disposed within a fluid source to a fluid receiving member. The fluid coupling includes a housing that defines a central passage between front and back openings and a first flow pas... | 05/07/2002 |
| 6230607 | Adjusting device for a pneumatic drive, particularly for a medical or dental instrument An adjusting device for a pneumatic drive, particularly a pneumatic drive of a medical or dental instrument, for example, a handpiece or angle piece, which delivers its energy by vibration and in which the vibrations are produced by a pneumatic drive, whe... | 05/15/2001 |
| 6012485 | Fluid filter arrangement including valve arrangement, fluid level indicator, and methods thereof A filter arrangement for filtering fluid comprises a housing and a valve arrangement. The housing includes an inlet, an outlet, and a draining aperture. The valve arrangement is constructed and arranged to move between a closed position and an open positi... | 01/11/2000 |
| 5979492 | Fluid level regulating sleeve valve A Sleeve Valve for regulating the water level in ponds, lagoons and other wetlands which includes an outer tubular section of plastic pipe with a plurality of vertically spaced openings and an inner tubular section of plastic pipe that is disposed telesco... | 11/09/1999 |
| 5913664 | Safety relief valve assembly for a fluid displacement apparatus A safety relief valve assembly for use in a fluid displacement apparatus of an automotive air conditioning system includes a valve mechanism which releases gas when the pressure in the fluid displacement apparatus increases above a predetermined pressure ... | 06/22/1999 |
| 5881999 | Water shutoff valve assembly A valve assembly includes a driven shaft rotatably mounted in a housing and including a first end portion extending outward from a first end portion of the housing and a second end portion received in the housing, and a passage defined through the driven ... | 03/16/1999 |
| 5782455 | Valve A valve has an elongated body open-ended, with a bore with a center line extending from one end of the body to the other. The bore is interrupted by a fluid tight partition, on both sides of which, ports extend through the wall of the body. An elliptical ... | 07/21/1998 |
| 5749561 | Plug assembly A plug assembly (2) which can be used in a drain, sink or bath (5). The plug (2) is of the pop up type being spring biassed into an open position. The plug (2) includes inter-engaging means for engagement of the plug (2) with a waste pipe (3) and means to... | 05/12/1998 |
| 5687562 | Bypass air valve for turbofan engine A bypass air valve is provided which includes a liner, a strap, apparatus for biasing the strap into contact with the liner, a selective actuator, and apparatus for passage of bypass air. To open and close the valve, the selective actuator unwraps a segme... | 11/18/1997 |
| 5342025 | Magnetic control-type flow control valve A magnetic control-type flow control valve includes a driven magnet ring disposed rotatably in a metal tube unit, a rotatable circular valve piece connected to a bottom end of the driven magnet ring and formed with first openings, a stationary circular va... | 08/30/1994 |
| 5332194 | Fluid flow controller A valve assembly for controlling fluid flow to a tube connected to the assembly by shifting of a sleeve mounted on the assembly. When the sleeve is shifted into a shutoff position, a fluid path through the assembly is completely occluded by a closure elem... | 07/26/1994 |
| 5178186 | Axial two-way valve-stopcock combination A valve stem and body combination for flow control in fluid delivery systems for biomedical applications. The valve body includes a smaller conduit that can be aligned with an exit port in the valve stem to achieve a flow-through mode of operation. The fl... | 01/12/1993 |
| 5035605 | Nozzle shut-off valve for an injection molding machine A nozzle shut-off valve for the plastication system of an injection molding machine. The valve includes a cylindrical body member that has axially spaced inlet and outlet passageways. Inclined passageways that extend from the inlet and outlet passageways ... | 07/30/1991 |
| 4925097 | Misting system A misting head assembly including a cylindrical rotor having a chordal flat, a center post having a flow passage, a swivel arm having a tubular portion with a radial through opening mounted for swiveling about the rotor and a connecting portion. The swive... | 05/15/1990 |
| 4842012 | Faucet valve structure A faucet valve to be used with a water knob to control the flow of faucet water. The faucet valve contains a valve body, a valve case, and an insert. A sealing cap is disposed to contact with the inner side of a hollow portion of the insert so that the fl... | 06/27/1989 |
| 4817667 | Metering regulator for pneumatic tools A metering regulator for air tools which includes a ported sleeve adjustable to control the volume of air flowing therethrough while simultaneously controlling the shut-off pressure of the air tool by adjusting the biasing force exerted on a differential ... | 04/04/1989 |
| 4722366 | Flow control device A male fluid control member for controlling aspiration flow is insertable in a standard female receptacle having an interior cylindrical recess including a vent line leading to the recess. The male member includes an open end intruding into the recess in ... | 02/02/1988 |
| 4714200 | Nozzle for sprayer A nozzle for a sprayer having a spray body, including a nozzle body formed with a delivery hole communicating with the spray body, a sealing member fitted around the nozzle body axially rearwardly of the delivery hole, and a cap member axially retractably... | 12/22/1987 |
| 4679705 | Fluid supply system, a connector and a valve A fluid supply system has a plastics bag reservoir into which the other parts of the system may be packed. The other parts of the system include a flow pipe, a connector to connect the pipe to a wall of the reservoir and fluid supply outlet drip-valves. T... | 07/14/1987 |
| 4671314 | Flow line sampler valve apparatus A homogeneous fluid sampling valve mounted into a high pressure or low pressure flow line or the like wherein homogeneous fluid is flowing therein, preferably the body of the valve mounted perpendicular to the flow with a small portion of the valve body e... | 06/09/1987 |
| 4642097 | Left ventrical vacuum control and pressure relief valve The valve is positioned in the left ventricle drain line and includes a check valve which permits flow only away from the heart and downstream of the check valve includes a vent valve which prevents buildup of pressure. In addition, the valve includes a m... | 02/10/1987 |
| 4632362 | Tap A tap made of plastic material for dispensing liquids from containers comprising a body having a cylindrical sleeve portion for attachment to a container from which liquid is to be dispensed, the wall of the cylindrical portion being provided with an outl... | 12/30/1986 |
| 4606501 | Miniature spray guns An external mix miniature spray gun of the airbrush type obtains a spray of paint by directing a jet of gas from a source over a nozzle. A reducing valve for the flow of gas is connected at one end to the source and to an outlet at the other end for disch... | 08/19/1986 |
| 4603837 | Tap or valve The tap or valve is made up of a first tube and a second tube which may be located about a common axis. Each of the tubes has a portion of its wall extending around only a part of its periphery, cut away. One of the tubes is rotatable between an "open pos... | 08/05/1986 |
| 4558526 | Arrangement with a fan The invention relates to an arrangement with a fan (12) for producing an air stream which can be heated by means of a heating element (14), with a housing (2) which has one or more air outlet openings (4) along its longitudinal axis, and with a control me... | 12/17/1985 |
