Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 7325569 | Butterfly valve with integral split flapper relief valve A valve is provided that includes a valve housing, a valve element, and a flapper. The valve housing has a passage. The valve element is rotationally mounted in the passage and moveable between an open position and a closed position. Additionally, the valve element ... | 02/05/2008 |
| 7296594 | Combination check valve and neutral valve assembly for use in a hydraulic component A combination neutral valve and check valve assembly is provided for use in connection with a closed hydraulic circuit and a sump such as in a hydrostatic transmission. A cage and check poppet are mounted in a valve body having an opening between the hydraulic circu... | 11/20/2007 |
| 7278444 | Valve assembly having improved pump-down performance A valve assembly including a housing having a flow path extending to an outlet and a valve seat in the flow path and around the outlet, a slide plate located in the housing and movable transversely to a longitudinal axis of the flow path between a closed position, i... | 10/09/2007 |
| 7275367 | Exhaust pressure-raising device for an internal combustion engine There is provided an exhaust pressure-adjusting valve that is brought into a closed position due to a biasing force of a resilient body and is opened against the biasing force of the resilient body due to the exhaust pressure in an exhaust channel, which is raised i... | 10/02/2007 |
| 7270310 | Electromagnetic valve and vapor fuel treating system applying the same A first connecting pipe of an electromagnetic valve connects with the fuel tank, and a second connecting pipe connects with a canister. A spring urges a moving core and a first valve body in a closing direction of a electromagnetic valve. A shaft of the first valve ... | 09/18/2007 |
| 7191790 | Quick connect pressure reducer/cylinder valve for self-contained breathing apparatus A quick pressure reducer and cylinder valve for use with an SCBA includes a cylinder valve that connects to a pressure vessel, a pressure reduction assembly for reducing the pressure of breathing air provided by the pressure vessel, a probe, and an inlet/latch assem... | 03/20/2007 |
| 7168428 | Apparatus for connecting air bottles An air transfer apparatus for transferring air from a replenishment air cylinder to another air cylinder is provided. The air transfer apparatus comprises a first valve adapted to engage a replenishment air cylinder and a second valve having quick connect fittings a... | 01/30/2007 |
| 7152619 | Air tap assembly An air tap assembly includes a mounting seat, a connecting member, a stop member, and an end cap. Thus, the stop plate of the stop member prevents the air in the air cushion from leaking outward through the vent holes of the connecting member, so that the air tap as... | 12/26/2006 |
| 7152625 | Combination check valve and release valve An article of footwear including a sole and an upper with an exterior and interior surface, and a bladder which comprises at least one of the exterior or interior surfaces. The bladder comprising sheets of polyurethane attached together via welding. The bladder incl... | 12/26/2006 |
| 7140385 | Valve arrangement for controlling hydraulic fluid in an axial piston machine In the stationary part (1) of an axial piston machine, a first flow duct (2) and second flow duct (5) intersect with the central axes (3) and (6). A valve body (20) having a valve cone (21) and a tubular guide piston ... | 11/28/2006 |
| 7121302 | Air tap assembly An air tap assembly includes a mounting seat, a connecting member, a stop member, and an end cap. Thus, the stop plate of the stop member prevents the air from flowing back into the vent holes of the second pivot portion of the connecting member, so that the air tap... | 10/17/2006 |
| 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 |
| 7080654 | Method for transporting easily polymerizable liquid by pipeline A method for transporting an easily polymerizable liquid by a pipeline having branches, wherein among pipelines branched at a branch point, one pipeline which may not be used over a long period of time, is provided with a valve to close the pipeline, within 500 mm f... | 07/25/2006 |
| 7044443 | Flat valve device A flat valve device of a smaller size which can complete easy and swift air evacuation, in which the airtightness of a gas-containing structure and the operational safety can be improved, requiring no extra parts. The flat valve device includes a circular fra... | 05/16/2006 |
| 7004186 | Surge relief apparatus for a valve A valve apparatus that includes surge relief includes a valve housing having an inlet port, an outlet port, and a poppet seat between the inlet port and the outlet port. The valve also includes a first moveable poppet piece having a closed position against the poppe... | 02/28/2006 |
| 6981519 | Pressure-regulating valve Pressure-regulating valve having a throttle mounted in a tube section such that it can be pivoted about a pivot axis from an open position into a closed position. The throttle having a pressure relief valve mounted therein. ... | 01/03/2006 |
| 6962322 | Waste water valve system A drain pipe dispenses waste water from the vehicle. The drain pipe has a circumferential slot and a gate collar around the drain pipe over the slot. A gate valve is coupled to the gate collar. A gate reciprocable between a closed and open position is provided. A dr... | 11/08/2005 |
| 6908121 | Locking arrangement for a threaded connector A connector arrangement used for connecting and locking tubular members. The connector consists of two tubular members and a coupling member. The tubular members are threaded together to create a threaded connection. The locking arrangement is provided by a pathway ... | 06/21/2005 |
| 6796326 | Gas pressure regulator A gas pressure regulator shall be created that shows reproducible features even at minimum through flow values, and at the same time allows keeping its lock up characteristic. In addition, gas burners operated at a large modulating range shall allow ignition as well... | 09/28/2004 |
| 6435210 | Electromagnetic valve The present invention relates to an electromagnetic valve which includes a valve tappet that is axially movably arranged in a valve housing and fastened to a magnetic armature, and a valve piston axially movable in the valve housing, a diaphragm-type pres... | 08/20/2002 |
| 6431210 | Inlet unloader valve An inlet valve for use in a gas compressor, the inlet valve including a piston movable within a housing chamber toward and away from a housing inlet and a valve disc movable with the piston, the valve disc including an aperture for selectively providing a... | 08/13/2002 |
| 6164328 | Three position retaining valve A three position retaining valve wherein a slide in a rotating valve element has a seal which controls the connection of the inlet to the outlet for only one of three passages in the valve element. Preferably, the body, handle, valve element and slide are... | 12/26/2000 |
| 6079440 | Reversing valve with a cross section which is dependent on the direction of flow A reversing valve having a valve body which separates two working spaces which are filled with a fluid. Passage openings are arranged in the valve body and are covered at least partially by a number of valve plates. The cross sectional passage of the pass... | 06/27/2000 |
| 5931193 | Flow rate control device having priming mechanism A flow rate control device which does not constitute an obstruction when it is connected to a liquid medicine continuous injector, which is not influenced by the body temperature of a patient and which can perform a priming operation of the liquid medicin... | 08/03/1999 |
| 5785082 | In-line fuel fill valve An in-line fuel fill valve assembly which provides for rapid and efficient refueling of compressed natural gas powered vehicles is provided and includes a receptacle adapted to mate with a fuel supply nozzle and a valve body having an in-line gas flow pas... | 07/28/1998 |
| 5694965 | Pneumatic pressure regulator In a pneumatic pressure regulator comprising a ported housing having an internal bore, within the bore a spring-pressed piston mounted for reciprocation between advanced and retracted positions, and valve means associated with the piston and operative to ... | 12/09/1997 |
| 5666989 | Tank venting control assembly A fuel vapor control valve for controlling the flow of fuel vapor and liquid fuel through an aperture in a fuel tank is provided. The fuel vapor control valve includes a housing mounted in the aperture and formed to include an inlet and an outlet, a chamb... | 09/16/1997 |
| 5580225 | Pulsation causing check valve assembly for a plural piston pump system The fluid pump has a casing defining an inlet manifold, an outlet manifold and a plurality of piston chambers between the inlet manifold and the outlet manifold, each piston chamber having a piston therein for drawing fluid into the piston chamber from th... | 12/03/1996 |
| 5467851 | Shock absorber with a check valve module and a check valve module for a shock absorber Shock absorber with adjustable damping force, comprising a cylinder, an axially movable piston rod with a piston connected to it, a number of fluid chambers with capacities which can be changed relative to one another as a function of the movement of the ... | 11/21/1995 |
| 5375623 | Cartridge valve Pressure compensated cartridge valve with a valve housing (1, 2) in which is axially guided a valve stem (10) which at one of its ends is provided with a valve cone (12) the sealing surface (13) of which in the closed position engages an annular rim (15) ... | 12/27/1994 |
| 5305790 | Ball valve A ball valve has two mutually orthogonal diametrical internal passages in one of which is mounted a pressure relief valve assembly for resisting sudden pressure flucutations in fluid flow during movement of the ball valve from an open to a closed position... | 04/26/1994 |
| 5125323 | Pressurized oil supply/discharge circuit and valve device for use in such circuit A check valve (14) with a valve opening actuator and a bypass passage (16) are disposed in parallel in a pressurized oil supply/discharge passage (3) connected in communication with a hydraulic actuation chamber (2). A residual pressure holding valve (17)... | 06/30/1992 |
| 5046686 | Clack valve and flap valve with a controlled valve as well as aircraft with controlled valve of this type A controlled valve with clack valve and a clack valve including a controlled valve, as well as an aircraft with a controlled valve of this type, are disclosed. The disclosed controlled valve has a clack valve on its surface. The controlled valve is used f... | 09/10/1991 |
| 4969485 | Butterfly valve apparatus and method A butterfly valve includes a duct defining a fluid flow path and a plate-like valve member pivotal in the duct to in one position span and close the latter. The valve member is pivotal to a second position spanning the duct and extending parallel to the f... | 11/13/1990 |
| 4825909 | High pressure hydraulic flow control valve A high pressure hydraulic flow control valve is formed with a spool which is capable of operating as a conventional spool to control the flow of fluid from an input port to an output port or to a return port. The spool also provides overload protection wh... | 05/02/1989 |
| 4762145 | Underwater pressure relief valve Relief valve facilitating the underwater balancing of scuba divers' inflatable articles, which is finely adjustable and extremely responsive, and is designed to ensure a high functionality by using simplified components to minimize the manufacturing costs... | 08/09/1988 |
| 4742849 | Angled pneumatic connection including means for regulating a one-way flow In an angled connection in accordance with the invention, the one-way flow of fluid at a restricted flow rate is provided in a direction opposite to direction F by co-operation between a wall (23) having fixed orifices and a plug (26) having moving openin... | 05/10/1988 |
| 4579044 | Two-speed shift valve A two-speed, pilot-operated selector valve which directs hydraulic fluid to two motor elements with a common output shaft to obtain a high-torque, low-speed mode, or to one motor element, while recirculating the second element in a loop, to obtain a low-t... | 04/01/1986 |
| 4474211 | Pressure and vacuum relief valve with debris-catching feature A liquid-flow control valve with pressure-sensitive gas-bleed apparatus having a debris-catching feature. Included is a disc sealingly seatable selectively against a valve seat to open and close the valve. Apertures, which extend through the disc, remain ... | 10/02/1984 |
| 4465093 | Hydraulic fuse valve A fluid fuse operable to shut off fluid flow upon rupture of fluid conducting line downstream of the fuse. The fuse is actuated by two forces generated by pressure differential caused by sudden decompression of the fluid and developed across two variable,... | 08/14/1984 |
