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 |
| 7410145 | Valve for speed filling a dunnage bag A valve to be mounted on a dunnage bag having one collar mounted on the bag, a seal plate positionable adjacent to an interior end of the collar and a stem slideably mounted in the collar to position the seal plate in one position where air is prevented from passing... | 08/12/2008 |
| 7344569 | Closed position maintainable selector valve, knee torque device using the valve, and artificial leg A selector valve capable of maintaining a closed position for a while even if an operating force to a valve element (80) is eliminated when the selector valve (10) is switched from a closed position (braking state) to an open position. The valve elemen... | 03/18/2008 |
| 7335832 | Web configuration in acoustic impedance-inducing device A coiled blank defines two elongated parallel bands and a parallel web separating the bands. Opposite ends of the web form diagonally opposed spacer strips arranged such that, when the blank is coiled to bring the ends of the web into juxtaposition, the opposed spac... | 02/26/2008 |
| 7264222 | Modular valve assembly A valve assembly provides a holder cantileveredly attached to a boss on an end cap to axially dispose an actuator and a poppet on an axis with a valve seat formed in the end cap. The actuator is preferably a shape memory alloy actuator. The end cap may be placed in ... | 09/04/2007 |
| 7258322 | Manually operated switch for a faucet A manually operated switch for a faucet has a body, an inner pipe, a switching valve assembly. The body is hollow. The inner pipe is located inside of the body and has a flowing way. The flowing way is formed through the inner pipe. The switching valve assembly is s... | 08/21/2007 |
| 7255329 | Gate valve with offset valve stem An improved gate valve has a main body defining a flow passage, and a cylindrical gate member, which has a continuous seal disposed within a groove in the gate surface. The gate is actuated by a valve stem movable through a bonnet connected to the main body, with th... | 08/14/2007 |
| 7140592 | Self-sealing male Luer connector with biased valve plug A self-sealing male Luer connector for connection with a female Luer connector. The male Luer connector includes a housing having a distally-projecting tubular male body and a surrounding cuff interconnected by a proximal wall in which is formed at least one activat... | 11/28/2006 |
| 7001160 | Shoe with inflatable bladder and secure deflation valve A valve designed to limit inadvertent operation of the valve. The valve has a shortened plunger, a collar to prevent tilt of the plunger, and a conformable ring on the valve face. The plunger is provided with a groove sized and dimensioned to partially receive the i... | 02/21/2006 |
| 6994227 | vacuum container to preserve food A vacuum container for preserving food is disclosed herein that includes a cover member for covering an upper part of a container member in which food is filled, a piston member equipped with the cover member and ascending and descending movable, and first and secon... | 02/07/2006 |
| 6981511 | Method and apparatus for servicing a pressurized system A method and apparatus for servicing a pressurized system is described. A purge fitting can be used to vent the pressurized system. Venting can release a gas, such as air, from the system. The pressurized system can be a climate control system (e.g., an air conditio... | 01/03/2006 |
| 6443421 | Poppet valve with sleeve A poppet valve assembly having a spring for holding the valve in a closed position and permitting opening of the valve in response to air pressure including valve stem alignment provided by a sleeve in engagement with the spring and having a cross pin sup... | 09/03/2002 |
| 6321995 | Thermostatic expansion valve A thermostatic expansion valve for a vehicle air-conditioning system includes a valve body with a condenser passage and an evaporator passage, and a power element supported on one end of the body. The power element includes a diaphragm and a pressure pad ... | 11/27/2001 |
| 6237893 | High pressure aerator valve An operationally improved gas powered metal discharge valve is disclosed having fewer non-welded internal parts to release pressurized gas into a storage vessel containing granular material for the purpose of aiding flow of the granular material from the ... | 05/29/2001 |
| 6234450 | Connectors and valves To avoid sealing problems associated with attachment of a connector to a separate valve member when providing for evacuation of a bag or other container, a unitary connector and valve (10) comprises a spring-loaded valve member (24) located in a bore (20)... | 05/22/2001 |
| 6219861 | Drain structure for a sink The drain structure includes a valve seat axially secured into a tube drain of a sink or basin, a sleeve disposed in the valve seat and a slider slidably engaged in the sleeve to discharge water from the sink. A double V-shaped slot in a lateral side of t... | 04/24/2001 |
| 6186477 | Gas by-pass valve A pressurized gas flow controlling microvalve having a casing and cap which together define a valve chamber having gas flow inlet and outlet ports and a plunger positioned within the valve chamber moveable from a closed position sealing the outlet port to... | 02/13/2001 |
| 6171495 | Automatic three-way valve The present invention relates to a method and apparatus incorporating an automatic, three-way valve having inlet, outlet and drain passages and a close-open timing mechanism. The timing mechanism is adjusted to a predetermined period of time in order to c... | 01/09/2001 |
| 6142445 | Electromagnetic control valve An electromagnetic control valve is provided. The control stability of the electromagnetic control valve is improved because: (1) one end of the guide pin is forced into and then secured in a hole formed in the center of the coil guide so that the plunger... | 11/07/2000 |
| 5853071 | Bleed valve for bleeding fluid from a hydraulic circuit A bleed valve for bleeding fluid from a hydraulic circuit comprises a valve body having a valve passage therethrough adapted for fluid communication with the hydraulic circuit, a valve seat on the valve body, and a sealing assembly. The sealing assembly h... | 12/29/1998 |
| 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 |
| 5697510 | Container and valved closure A container includes a cover engaged on an open top. A channel and an opening are formed in the cover. A knob is slidably engaged in the channel and includes a tube having a pair of shoulders. A plug has a pair of hooks engaged into the tube and engaged w... | 12/16/1997 |
| 5606989 | Self-venting valve arrangement A self-venting valve having its principal parts molded of nylon reinforced with glass fibers is mounted in the bottom of a fuel filter assembly to drain water and other contaminants from the assembly. The self-venting valve includes a plunger portion with... | 03/04/1997 |
| 5503123 | Internal combustion engine cylinder puppet valve having self-aligning guide A cylinder head assembly for an internal combustion engine includes self-aligning valve guides which are movable radially and coaxially to a variety of locations in which the axes of the valve guide and valve guide bore formed in the cylinder head are all... | 04/02/1996 |
| 5470044 | Safety faucet A safety faucet including a handle having an opening, a safety sliding block received in the opening on the handle, a casing, and a valve device mounted within the casing, the valve device including a cap fastened to the casing, a valve stem having one co... | 11/28/1995 |
| 5456448 | Touch button controlled water stop A touch button controlled water stop mainly consists of an outer sleeve, a shaft rod, an upper toothed ring, a lower toothed ring, a spring guide bush, two springs, and a plunger; the shaft rod extending through a spring, a washer, a packing sheet, and a ... | 10/10/1995 |
| 5449144 | Faucet valve with safety handle A faucet for controlling the dispensing of liquids includes a valve body having a valve chamber with a valve element movable between first and second positions for controlling flow between an inlet and the outlet. An operating stem extends from the valve ... | 09/12/1995 |
| 5449145 | Valve device for controlling flows in surgical applications A disposable trumpet valve for controlling irrigation and aspiration flows under manual operation comprises a conduit and a pair of spaced apart valve barrels of substantially greater cross-sectional size within which valve members are reciprocable under ... | 09/12/1995 |
| 5433410 | Drain valve A drain valve for replacement of drain plugs or drain valves to facilitate the quick drainage of fluid from an equipment. The drain valve has a tubular housing assembly having a threaded section to be threaded into a threaded drain hole and a hexagonal nu... | 07/18/1995 |
| 5407173 | Valve for gas burning torch A valve for controlling the flow of a gas in a gas burning torch comprises a housing having a flow passageway therethrough, a valve seat in the passageway, and a valve stem carrying a ball valve element for engaging and disengaging the valve seat to respe... | 04/18/1995 |
| 5397024 | Structure of container A container includes a top-open container body having a tapered top-flange around the top opening thereof, and a top cover having a tapered bottom flange fitted around the top flange of the container body, wherein the top cover has a stepped air hole and ... | 03/14/1995 |
| 5392967 | Plug device for sealing liquid container A plug device for a liquid container is presented to enable cleaning of a flow passage of the liquid container as well as to eliminate the liquid being left in the flow passage during the operation of the liquid container, thus providing hygienic and safe... | 02/28/1995 |
| 5364070 | High pressure micro valve A bi-directional flow valve for use in regulating flow of pressurized fluids in surgical instruments is disclosed. The valve comprises a valve body having an axial bore of variable radius, a plunger axially and slidably mounted within the bore of the valv... | 11/15/1994 |
| 5344120 | Airless spray gun needle assembly A needle assembly for an airless spray gun is provided with a needle which is centerless ground and electropolished to greatly increase life. Further life enhancements are gained by use of a plastic needle bushing in the needle clamp and provision of a sp... | 09/06/1994 |
| 5228646 | Latching trumpet valve for medical infusions A valve for controlling medical infusions includes a one-piece plastic body, and a plunger assembly inserted into the body from one end. The plungers is connected to a manually operable cap containing a return spring, and the cap has a rim with a pair of ... | 07/20/1993 |
| 5112203 | Vessel vacuum release There is disclosed herein an inexpensive, compact vacuum release which can be operated with one finger. The vacuum release comprises a base which is affixed to the wall of a vessel, a plunger which extends through a channel in the base, a rocker which rai... | 05/12/1992 |
| 5087018 | Fluid flow control valve A fluid flow control valve according to the invention includes a base, a valve member, a trigger member and attachment means for attaching the trigger member to the valve member. The base includes a generally horizontal throat and a flange having an upwar... | 02/11/1992 |
| 5064168 | Spool valve with offset outlet A valve includes a one-piece plastic body, and a plunger assembly inserted into the body from one end. The body includes a central cylindrical portion extending along a first axis, a tubular outlet portion extending along a second axis parallel to and off... | 11/12/1991 |
| 5002086 | Plastic control valve A free draining, corrosive resistent valve for regulating the flow of corrosive fluids therethrough includes a plastic valve housing. An inlet passage extends into the housing and upwardly therein terminating in a valve seat. An inclined panel surrounds t... | 03/26/1991 |
| 4948094 | Outlet valves An outlet valve comprising a unitary housing is described. An inlet end of the housing has a flange for attachment of the valve to the discharge conduit of a tote tank, and an outlet end of the housing has a flange for attachment of a dry disconnect coupl... | 08/14/1990 |
| 4921007 | Master brake cylinder suction refill valve A suction refill valve for a master brake cylinder which is suitable for use in brake systems having brake slip control. The refill valve has a sealing element, made from an elastic material, which is annular and is acted upon on virtually all sides by th... | 05/01/1990 |
