Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 7997296 | Air valve device An outdoor lighting device includes a housing, at least one power supply device and at least one arrayed lighting unit. The housing has a surface forming at least one reflection zone and the reflection zone includes a lens. The power supply device is arranged inside... | 08/16/2011 |
| 7624752 | Inflation valve An inflation valve includes a hollow sleeve having a first chamber and a second chamber; a first valve body located in the first chamber; a second valve body located in the second chamber; an air inlet connector screwed to an upper end of the second chamber; and a c... | 12/01/2009 |
| 7509969 | Two-way check valve A two-way check valve includes a sleeve, a connection head, a valve stem eject-rod, a first valve body, a second valve body, a first pressure adjustment module, a second pressure adjustment module and an intake connector. The sleeve is threaded over the valve stem e... | 03/31/2009 |
| 7438081 | Valve for an inflatable and method of use A valve for an inflatable includes both inflation/deflation and pressure release functions. The valve has a housing which receives a core, a spring, and a nut. The nut is threadably received by the core and slidably received by the housing, and holds the core and sp... | 10/21/2008 |
| 7404412 | Inflation stem with blow-off valve to prevent overinflation An inflation stem having an inflation valve combined with a blow-off valve to prevent overinflation. The valves are forced open during inflation when the actuating pin is depressed by the compressor chuck head, opening a fill chamber through which fluid flows into a... | 07/29/2008 |
| 7336162 | Double mold shot pull to seat universal TPMS sensor A tire pressure sensor assembly is provided for use with a wheel rim including a valve hole. The sensor assembly including a metal valve stem element having a stem base, a stem body, a stem cap end, and an inner stem chamber. A lower sensor housing is rigidly over-m... | 02/26/2008 |
| 7320345 | Tire safety valve and inflation device An air inflation device is a pass-thru vehicle tire inflation device. It ensures exact air pressure without the use of an air gauge. It works by attaching to a tire valve, and then to an existing air supply, such as those found at gas stations, and utilizing an inte... | 01/22/2008 |
| 7284419 | Temporary attachment tire pressure gauge A gauge is provided for monitoring pressure of air within a tire or other gas containing chamber. A gauge includes a receiver attachable to a valve stem of the tire. A valve core is also provided on the gauge through which fill air can be directed. In this way, the ... | 10/23/2007 |
| 7171977 | Combination pressure relief and topping valve A combination or hybrid pressure relief and topping valve for use with inflatable devices such as life rafts and escape slides. The valve including a valve body with a fluid passage therein that includes an internal shoulder. The valve further includes a first poppe... | 02/06/2007 |
| 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 |
| 7073527 | Assignable pressure governor valve In an apparatus for regulating the internal pressure of a closed system, a valve housing connected to a closed system, an intake valve connected to a valve housing for receiving a pressurized substance in one direction through the valve housing into the closed syste... | 07/11/2006 |
| 7051778 | Device and method for generating energy in a rolling wheel A device for generating energy in a rolling wheel includes one part that can move with respect to a wheel rim. The one part is engaged with elastic portion that keeps it in contact with a predetermined bead portion of a tire. The one part undergoes reciprocating out... | 05/30/2006 |
| 7032611 | Pressure regulator and method of use A pressure regulating device for connecting a pressure source to an inflatable object comprises: a hollow casing; a valve system positioned inside the hollow casing; a fluid inlet connected to the valve system; a fluid outlet; a fluid conduit positioned inside the h... | 04/25/2006 |
| 7030743 | Tire pressure indicator providing a visual indication of tire pressure An tire pressure indicator operative to provide a first visual indication if the tire pressure within a tire to which the indicator is coupled is below a first predetermined pressure and a second different visual indication if the tire pressure is above a second pre... | 04/18/2006 |
| 7021326 | Combination inflation and relief valve A combination inflation and relief valve having an inflation gasket mounted on a reciprocating stem head that separates from a valve seat of a valve body against the force of an inflation spring upon inflation and having a relief gasket mounted on a reciprocating pu... | 04/04/2006 |
| 6948516 | Excess tire air pressure relief valve An excess tire air pressure relief valve positioned on an automobile tire for relieving the pressure within the tire caused by heat or over inflation. The valve has a main tube that extends through the tire rim, to selectively communicate air from the tire interior ... | 09/27/2005 |
| 6911903 | Tire pressure indicator A tire pressure indicator for coupling with a valve stem of a tire. The tire pressure indicator provides a first visual indication in the event that the tire pressure is below a first threshold limit and a second visual indication if the tire pressure is above a sec... | 06/28/2005 |
| 6827096 | Relief valve A relief valve includes an outer stem including a larger diameter fitting section and a smaller diameter fitting section, a movable valve element fitted in both fitting sections so as to be moved between an opening position and a closing position, a communication sp... | 12/07/2004 |
| 6672328 | Pressure-controlled three-way valve device for transport vehicle tires A remote pressure-controlled three-way valve device has a plunger axially traversed by an inlet passage normally closed by a spring-urged inlet valve. The plunger's outer sidewall has a recess in which an O-ring extends to abut against the steps of the re... | 01/06/2004 |
| 6427714 | Fluid flow valve with variable flow rate An improved fluid flow valve (10) for a fluid flow control system. The flow valve (10) includes a flow-regulating assembly (40) having a housing (44) having a piston bore (15) within which is slideably disposed a piston-like member (42). The piston-like m... | 08/06/2002 |
| 6302138 | Pressure regulating tire valve and core The present invention is related to air pressure valve stems and gauges. More particularly, this invention relates particularly to tire stem valves possessing a built-in calibrated air pressure regulator and an optional integrated air pressure indicator.... | 10/16/2001 |
| 6250327 | Fluid flow valve with variable flow rate An improved fluid flow valve (10) for a fluid flow control system. The flow valve (10) includes a flow-regulating assembly (40) having a housing (44) having a piston bore (15) within which is slideably disposed a piston-like member (42). The piston-like m... | 06/26/2001 |
| 6142168 | Pressure regulating tire valve and core The present invention is related to air pressure valve stems and gauges. More particularly, this invention relates particularly to tire stem valves possessing a built-in calibrated air pressure regulator and an optional integrated air pressure indicator.... | 11/07/2000 |
| 6079519 | Combined fill and relief valve A combined fill and relief valve is provided for a fluid chamber containing grease under pressure relative to surrounding atmosphere. The valve includes a housing having a longitudinal bore, the longitudinal bore including an inlet and an outlet. The hous... | 06/27/2000 |
| 5988245 | Vehicle wheel assemblies including protection against excessive tire pressure A vehicle wheel assembly includes a tire, a rim, an air valve and a relief valve. The relief valve can be installed in the rim, in the tire, or incorporated into the housing of the air valve to communicate directly with the interior of the tire; or as an ... | 11/23/1999 |
| 5924444 | Rapid response valve A valve releases fluid from a high pressure source to a low pressure receiver and includes a housing (301) having a first cavity (312), a second cavity (313), an annular interior sealing surface (318), an elastomeric ring (303), a poppet (302) and an actu... | 07/20/1999 |
| 5878791 | Gas exchange device A gas exchange device designed to displace existing air or gas inside a pressurizable or inflatable article with an inert, dry gas such as nitrogen. The gas exchange device includes an elongated injection tube which inserts into a valve or opening of a pr... | 03/09/1999 |
| 5778923 | Anti-seepage self-gauging inflation valve system An anti-seepage, self-gauging inflation valve system includes an inlet port and an outlet port; a filler valve for introducing fluid under pressure from the inlet to the outlet port; a vent structure; an isolation chamber communicating with the vent struc... | 07/14/1998 |
| 5694969 | Pressure relief tire valve A pressure relief tire valve for inflating a tire wheel assembly has a tire inflation valve body having a chamber therein with openings through the top and bottom ends thereof and having a relief opening formed in the tire valve body. An inflation valve h... | 12/09/1997 |
| 5651403 | Pressurizable flexible-walled container having a snap closure for its filling nozzle A closure for sacks, bags and like containers which have non-rigid walls and which are to be pressurized. The closure includes a filling nozzle having a tubular stub and a flange. The flange has a tubular cylindrical portion and a plate-shaped portion. Th... | 07/29/1997 |
| 5367726 | Pneumatic support system A portable, inflatable support system, and a portable inflator for use with such a system are provided in one embodiment. The inflatable support system may include an inflatable mattress having a pressure valve and a battery powered inflator for removable... | 11/29/1994 |
| 5365967 | Safety tire valve A tire pressure indicator which includes a valve stem over-pressure indicator and a valve stem cap under-pressure indicator. The valve stem includes an air porting scheme that releases over-inflation air for escape through a whistling reed configuration. ... | 11/22/1994 |
| 5297576 | Oral inflation and relief tube An oral inflation and relief tube for connection to an inflatable article. The oral inflation and relief tube includes an elongated tube having an oppositely positioned first opened end and second opened end, with a flanged opening positioned therebetween... | 03/29/1994 |
| 5181977 | Tire inflation valve having overpressure and flow control A tire fill valve having pressure relief and tire fill fluid gas flow limiting characteristics for use in filling tires to a predetermined pressure form a large flow capacity gas source delivering fill gas at a substantially greater pressure. Gases utiliz... | 01/26/1993 |
| 5101754 | Device for surveillance of a pressure in a vehicle tire A device for the surveillance of the pressure of a vehicle tire includes a pressure-sensitive device which senses the tire pressure and generates, in case of a pressure loss in the tire, a pressure change signal. A set member is actuated with this pressur... | 04/07/1992 |
| 5029604 | Safety core for tire valve A safety core (10) for a tire valve comprises a head portion (12) screwed into the valve's housing (28) so that it is sealed against the inner wall of the housing by compressing a seal ring (36) located in an annular groove (34) formed in a tapered portio... | 07/09/1991 |
| 4948092 | Combined check valve and fluid pressure relief valve A combined check valve and relief valve assembly for permitting the free of a fluid in a first direction and for selectively preventing backflow. Backflow occurs only upon depression of a compression spring-loaded cylindrical valve actuator housed within ... | 08/14/1990 |
| 4922946 | Remote inflation and deflation system and valve therefor A piloted pneumatic valve for controlling pressure at a distance. The valve includes a cavity divided into two chambers by a membrane. One chamber is the pilot chamber, and the other the escape chamber, connected to a pressurization and depressurization c... | 05/08/1990 |
| 4895199 | Tire inflation and deflation valve A central tire inflation and deflation system which quickly inflates or deflates tires to any one of a plurality of pressures selected by the vehicle operator. Inflation pressure is greater than the pressure to which the tires are to be inflated. The syst... | 01/23/1990 |
| 4660590 | Inflation pressure regulator An improved inflation pressure regulator is disclosed of the type which automatically releases pressure above a predetermined maximum during inflation of a vehicular tire. The regulator, which is particularly suitable for use with low capacity tires and f... | 04/28/1987 |
