Did You Know...
...that the Eveready Battery began as an invention called the "electric flowerpot," which was a tube with a battery and light bulb inside? The idea was to fasten this gizmo to the side of a flowerpot so it would illuminate the flowers from the bottom. The idea died on the vine and the businessman who licensed the flower pot, Conrad Huber, was left with a pile of useless tubes -- until he found a way to market them as batteries to light the world!
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| Number | Title | Issue Date |
| 8087642 | Gas injection valve with two positions of closure Charge valve for gas, in particular for carbon dioxide, comprising a seat, drilled with a passage, a shaft movable inside the passage against the compression of a return spring bearing against the seat and an elastomeric seal compressed between the seat and the shaf... | 01/03/2012 |
| 8066258 | Valve seat apparatus for use with fluid valves A valve seat apparatus for use with fluid valves is described. An example valve seat apparatus includes a flexible seal disposed between a cage and a valve body such that an outer seating surface of a closure member slidably coupled to the cage slidingly engages the... | 11/29/2011 |
| 7409964 | Faucet type valve with backflow control in handle structure In a valve, the combination comprising a valve chamber, having a flow inlet and a flow outlet, a valve operator outside the chamber, a stopper in the chamber and operatively connected with the operator for movement toward and away from seat structure in the chamber,... | 08/12/2008 |
| 7334746 | Seat-lower guide combination A fuel injector for an internal combustion engine, including a housing, a homogeneous member defining a continuous wall having a seat portion and a guide portion, a closure member, and a metering disk. The housing includes an inlet and an outlet disposed along a lon... | 02/26/2008 |
| 7329234 | Self-occluding catheter A self-occluding catheter includes a body portion for connection to extracorporeal equipment. An elongated tubular extension is provided for insertion into a body cavity. The body portion includes a resiliently biased spool supported therein which is slidable betwee... | 02/12/2008 |
| 7325783 | Valve seat edge relief profile A valve seat has an outer surface, a rearward end, a face and a forward end. A passage extends from the rearward end to the face. A valve element slidingly contacts the face. Stress relief flanges are located on the face in areas of high bearing stress. Each flange ... | 02/05/2008 |
| 7225831 | Fluid flow control valve A fluid flow control valve that may be used as both a check valve and a relief valve. The valve includes a moveable valve member having a surface capable of forming two or more valve seal areas with two or more valve seat surfaces on a valve seat member. The valve s... | 06/05/2007 |
| 7182171 | Muffler with variable acoustic properties A muffler with variable acoustic properties. A pressure cell with a diaphragm, a spring, a piston, a piston rod, a closing element on the piston rod, and a pressure connection line are integrated into a housing. The diaphragm is thermally insulated against the pisto... | 02/27/2007 |
| 7128080 | Surge prevention device A surge prevention valve may be used to prevent the formation of an initial surge of high pressure. The valve may be located, for example, between a high pressure gas cylinder and a medical pressure regulator. The valve is provided with first and second valves locat... | 10/31/2006 |
| 7128089 | Flow control providing stable fluid flow An electro-mechanical variable fluid flow restrictor includes a support having a passage and a seal surface, a deformable seal that is engageable with the seal surface, and a bias member for exerting an electronically controlled variable bias against the deformable ... | 10/31/2006 |
| RE39334 | Luer-receiving medical valve and fluid transfer method A medical valve is provided that includes a housing having a main conduit and a branch extending from the main conduit and in fluid communication with it. The bore of the branch has an elastomeric septum piston disposed therewithin and at least a portion of the elas... | 10/10/2006 |
| 7073776 | Sluicing valve device A sluicing valve device in which a valve element is arranged in case members attachable to a pipe, and the valve element comprises a valve element core metal fitting, an elastic seal member covering the same, and a lifting and lowering shaft formed into a rod shape ... | 07/11/2006 |
| 7069137 | Valve flow metering control system and method A turbine valve control system is provided. The turbine valve control system includes a variable flow metering device, a first sensor, a second sensor, a third sensor, a fourth sensor, memory, and processing circuitry. The variable flow metering device is capable of... | 06/27/2006 |
| 7036490 | Elastomeric vapor flow control actuator A canister purge valve for regulating fuel vapor flow between a fuel vapor collection canister and an intake manifold of an internal combustion engine. The canister purge valve includes a body defining a passage extending between a first port and a second port. The ... | 05/02/2006 |
| 6994321 | Reciprocating ball valve The device described herein is a valve suitable for the control or shut-off of fluid flow in a piping system. It comprises a valve housing having inlet and outlet ports and a cylindrical bore whose axis is slanted at about 45 degrees in relation to the axis connecti... | 02/07/2006 |
| 6978981 | Taps for controlling liquid flow The invention discloses a tap (10) for controlling liquid flow. The tap (10) has a tube (14) with first (16) and second (18) opposite open ends, an inlet opening (20) leading into the tube between the first and second open e... | 12/27/2005 |
| 6886586 | Symmetrical valve configuration A compression-type valve seating ring device for sealingly engaging the valve seat. The seating ring device includes a resilient cylindrical body having a central axis and having a side surface, a top surface and a bottom surface. A first inward bevel is defined cir... | 05/03/2005 |
| 6845969 | Valve and sealing structure therefor A valve is generally elongated in shape and is inserted through an O-ring and amounting hole formed through a plate-shaped member. The valve includes a thread formed on an outer circumferential face of the valve so that a generally annular fitting is engaged therewi... | 01/25/2005 |
| 6840504 | High-pressure switching valve device A high-pressure switching valve device. A valve main body pressed to contact with an end face of a valve seat when the high-pressure switching valve device is closed, and a seal member pressed to contact with the end face of the valve seat when the high-pressure swi... | 01/11/2005 |
| 6820857 | Needle valve with soft tip stem A needle valve having a soft tip adapted for sealing an annular valve seat of a body port. The soft tip may be defined as two dissimilar circular rod sections of ductile plastic with the larger diameter having a conical taper. The soft tip is pressed into a mating h... | 11/23/2004 |
| 6722629 | Flow control valve A flow control valve capable of increasing a delivery flow rate gradually with a simple structure, comprising a flowout port (26) to deliver a pressure fluid to the outside, a valve disc (3) having a pressing part (31) to arbitrarily open and cl... | 04/20/2004 |
| 6701958 | High performance fluid control valve A fluid control valve includes a valve body having a fluid passageway, a cage mounted in the fluid passageway and a valve plug assembly including a valve plug. The cage has a cage bore and defines one or more windows, a valve seat located below the window... | 03/09/2004 |
| 6698719 | Seal arrangement for a vacuum valve A seal arrangement for a vacuum valve with a valve body in which is arranged a valve opening having a longitudinal axis and which has an inner jacket surface surrounding the valve opening and forming a valve seat, and with a valve plate which closes the v... | 03/02/2004 |
| 6695286 | Valve with ball of controlled deformation A valve with ball of controlled deformation for fluid shut-off comprising an external containment body (11), inside which is arranged a shutter element (13), movable between a closure position and an opening position of the valve, the shutter element coop... | 02/24/2004 |
| 6651693 | Check valve The check valve (12, 14) of the present invention is a ball-type valve that incorporates multiple annular valve seats (34, 38) of progressively smaller diameters for the specific purpose of providing a series of effective annular valve seats as the larger... | 11/25/2003 |
| 6629682 | Vacuum valve A vacuum valve comprises a wall with a valve opening and a valve seat, a valve plate which is pressed against the valve seat in the closed state, an elastic sealing ring which is arranged at the valve plate or at the valve seat and, in the closed state of... | 10/07/2003 |
| 6623012 | Poppet valve seat for an integrated pressure management apparatus A seal for a poppet valve of an integrated pressure management apparatus, a valve system using the poppet valve seal, and a method of cleaning debris off of a poppet valve. The poppet valve is movable between an open position permitting fluid flow through... | 09/23/2003 |
| 6571822 | Low blow down relief valve A relief valve having blow down values of 5% or lower is disclosed. The low blow down values are the result of reducing friction within the relief valve. The relief valve includes a movable plunger. Clearance is provided whereby the plunger does not exper... | 06/03/2003 |
| 6569116 | Intravenous flow controlling device An intravenous (IV) flow controlling device comprises a flexible open container having a specific gravity less than one and an outer diameter smaller than that of the drip chamber, the container including a spherical bottom portion thinner than the shell ... | 05/27/2003 |
| 6491282 | Poppet release for poppet valve of a fuel dispensing nozzle A fuel dispensing nozzle includes an inlet for the fuel being pumped, a spout for dispensing of the fuel, a poppet valve between the inlet and outlet, and a handle which is operable to move the poppet valve between an opened position in which fuel can flo... | 12/10/2002 |
| 6354568 | Sliding plate valve A plate valve which includes two sliding plates and which carries seal portions with an elongated slot. A valve body of the plate valve includes a second elongated slot with further seal portions extending from a valve aperture. A cable of different diame... | 03/12/2002 |
| 6338445 | Fuel injector A fuel injector comprising a nozzle body having a first bore defining first and second seatings, an outer valve needle being slidable within the first bore and engageable with the first seating to control fuel flow from a first outlet opening. The outer v... | 01/15/2002 |
| 6289926 | Flapper valve assembly with seat having load bearing shoulder A flapper valve assembly (120) for controlling fluid flow therethrough is disclosed. The flapper valve assembly (120) comprises a tubular valve housing having a valve chamber. A valve seat (124) is mounted within the housing. The valve seat (124) has a va... | 09/18/2001 |
| 6263910 | Valve with secondary load bearing surface A valve (120) for controlling fluid flow therethrough in downhole applications is disclosed. The valve (120) comprises a valve housing having a valve closure mechanism (122) and a valve seat (124) disposed therein. The valve closure mechanism (122) has se... | 07/24/2001 |
| 6196261 | Flapper valve assembly with seat having load bearing shoulder A flapper valve assembly (120) for controlling fluid flow therethrough is disclosed. The flapper valve assembly (120) comprises a tubular valve housing having a valve chamber. A valve seat (124) is mounted within the housing. The valve seat (124) has a va... | 03/06/2001 |
| 5617632 | Methods for forming a contoured regulator seat A method for forming a contoured regulator seat in the substrate of a fluid flow regulator having a membrane with an elastic flexure. The method may involve the steps of deflecting the flexure into the substrate to form the contoured regulator seat while ... | 04/08/1997 |
| 5549651 | Luer-receiving medical valve and fluid transfer method A medical valve is provided that includes a housing having a main conduit and a branch extending from the main conduit and in fluid communication with it. The bore of the branch has an elastomeric septum piston disposed therewithin and at least a portion ... | 08/27/1996 |
| 5467964 | Quick coupling component with pressure reduction member A quick coupling component including at least one valve member. A pressure reduction channel is provided in at least one valve member. A pressure reduction member is arranged in the pressure reduction channel. The pressure reduction member includes a shut... | 11/21/1995 |
| 5415202 | Multistage variable area throttle valve A throttle or fluid control valve uses at least one compressible multi-wave asher as a fluid control element. The apertures formed by the multi-wave washer are short and of low aspect ratio when the valve is fully open to limit pressure drop across the val... | 05/16/1995 |
| 5415201 | Multi-stage fluid flow control device A fluid flow control device includes a support brace fixably mounted in a uid flow tube. An actuator rod is slidably supported by the support brace. A plurality of conical washers are mounted in sliding engagement on the rod between a stop mechanism on th... | 05/16/1995 |
