Did You Know...
...that the video game, Pong, was invented by a guy who graduated at the bottom of his engineering class? Nolan Bushnell spent more time running the games at a local amusement park than he did on his studies at the University of Utah. His dreams of working for Disney's amusement empire were dashed when the company wouldn't hire him. Taking a boring job, Nolan daydreamed about electronic versions of popular games. He invented Pong, the first video game, and went on to found Atari Co.
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| Number | Title | Issue Date |
| 7207346 | Hydrostat for portable gas range Provided is a hydrostat for a portable gas range, which prevents the explosion of a gas container by automatically discharging overcompressed gas from the gas container when the inner pressure of the gas container increases to an explosion pressure. The hydrostat in... | 04/24/2007 |
| 7201184 | Pressure protection valve A valve is provided having a housing with an inlet and an outlet. Within the confines of the housing is a fluid flow path that allows for fluid communication between the inlet and the outlet. The valve includes a valve element that is movable to and from a position ... | 04/10/2007 |
| 7178784 | Valve assembly and method The present invention discloses, among other things, a valve assembly that includes a body, a valve, a biasing mechanism, and a guide. The body includes a shaped cavity and the valve includes an elongated portion and a shaped valve head that has an exterior surface ... | 02/20/2007 |
| 7028702 | Automatic water pressure control valve balancing temperature of mixed water The present invention discloses an automatic water pressure control valve balancing the temperature of mixed water, eliminating a cylinder enclosing the pressure control piston and multiple seal rings, to reduce the number of parts and to minimize the production cos... | 04/18/2006 |
| 7025085 | Radial poppet-type check valve with closure assist feature A poppet-type check valve for controlling fluid flow, and including a valve housing having an interior and first and second ports therein communicating with the interior of the valve housing for permitting fluid flow from an upstream side to a downstream side thereo... | 04/11/2006 |
| 7017563 | Valve for controlling a fluid flow A valve for controlling a fluid flow, in particular for crankcase venting of an internal combustion engine, including a base body (37), a valve body (22) and a biasing means (23), the base body (37) having a valve side (45) and an ... | 03/28/2006 |
| 6971404 | Pressure protection valve A pneumatic valve (10) for selectively controlling fluid flow through a pneumatic system of a vehicle is disclosed. The valve (10) includes a housing (12) having a cavity (28). The cavity includes an inlet (16) and an outlet (18... | 12/06/2005 |
| 6899113 | Pressure relief valve A pressure relief apparatus including a housing, a valve disposed in the housing, the valve having a first shoulder, a retainer disposed between the housing and the valve spool, the retainer having a second shoulder, a biasing member disposed between the first and s... | 05/31/2005 |
| 6874531 | Relief valve In a conventional relief valve having a valve element supported by a diaphragm, since a surface of the valve element exposed to pressure is large and an opening/closing operation of the valve element is rapidly conducted, the operation often leads to chattering and ... | 04/05/2005 |
| 6789569 | Pressure relief valve with a spring-loaded membrane closing body The pressure relief valve has a spring pressure-loaded diaphragm closing body (13), which in the closed position sealingly engages on a centrally positioned valve seating surface (10) surrounding a first valve opening (8). Its spring pressure lo... | 09/14/2004 |
| 6769460 | Control valve The present invention relates to a device for controlling the recovery of vapour at stations for the dispensing of liquid fuels, e.g. petrol of various grades, from a first tank or container to a second tank or container by the intermediary of a pump and a line and/... | 08/03/2004 |
| 6622752 | Pressure relief valve The present invention provides a pressure relief valve, which achieves a reliable sealed structure in a valve holder 31 without the valve holder 31 jutting far out from a common rail, assures stability of operation of a valve spring 11 in a valve holder 3... | 09/23/2003 |
| 6581632 | Automatic valve In a poppet valve the guide attachment (2) of each sealing member (1) together with the spring (5) is arranged and supported in a cup-like suspension member (8) inserted in a continuous receiving bore (15) in the catcher plate (3) and is guided with its e... | 06/24/2003 |
| 6340031 | Check valve for refueling pipe of fuel tank A first spring guide fitting the outer periphery of one end portion of a coil spring is provided at an end wall portion of a valve casing, and a second spring guide fitting the inner periphery of the other end portion of the coil spring is provided at a v... | 01/22/2002 |
| 6318973 | Fuel pump A fuel pump includes an O-ring seal to provide sealing contact with a diaphragm seal between a valve housing and associated valve cover interface despite some loss of clamping load between such mating parts. Also, a molded O-ring type ladder seal is used ... | 11/20/2001 |
| 6250329 | Snap open pressure relief valve A pressure relief valve opens at a predetermined pressure of fluid flowing into the valve. It includes a body member having a passageway with an inlet and an outlet and a barrier member between the inlet and outlet that prevents fluid from flowing between... | 06/26/2001 |
| 6163895 | Plunger apparatus A multi-purpose water pressure plunger is provided having an adjustable valve with a regulating lever that is attached to a handle. The handle is connected to an anti-backflow valve. The anti-backflow valve is removably connected to a plunger head that is... | 12/26/2000 |
| 5855225 | Tank transport pressure relief valve assembly A pressure relief valve for releasing fluid through a vent in a railway tank car, tank trucks and similar vessels. A valve disk is normally biased in a closed position by a plurality of constant-force springs of laminated steel tapes on drums supported on... | 01/05/1999 |
| 5799871 | Spray nozzle with discrete open/close deadband and method therefor A valved nozzle for spraying fuel oil and method therefor includes an inlet, a discharge chamber downstream of the inlet, and a flow restricting orifice downstream of the discharge chamber. The pressure in both the inlet and the discharge chamber urges th... | 09/01/1998 |
| 5782259 | Pressure relief valve A pressure relief valve for a fluid pressure system having a pressure vent. A body is aligned with and in fluid communication with the pressure vent, the body terminating in a cylindrical portion having a circular opening. A bonnet is in axial alignment w... | 07/21/1998 |
| 5722455 | Nozzle closing valve, as well as pressure atomizer nozzle having such a nozzle closing valve A nozzle closing valve, particularly for a pressure atomizer nozzle of an oil burner, comprises an inlet side with an inlet port and a valve seat located at the end of the inlet port, as well as a closing member, which is sealing pressed onto the valve se... | 03/03/1998 |
| 5678604 | Fast opening, slow closing, relief valve A valve is indicated as well as a device for controlling the valve body in a valve, which is special in that the travel of the valve body in the valve housing is insignificantly damped in the opening movement of the valve, and strongly damped in the closi... | 10/21/1997 |
| 5465751 | Excess flow valve An excess flow control valve for telescopical receipt in a cylindrical fluid distribution pipe to control downstream flow therein. The excess flow valve includes a cylindrical pressure reducer fitting for mounting the valve in the pipe and is formed with ... | 11/14/1995 |
| 5462076 | Pressure-compensated pressure limiting valve Pressure limiting valves intended for use in underground mining and tunnel construction are able to release the pressure medium discharged if an overload occurs without problems into the return line, since the occurring back pressure is directly neutraliz... | 10/31/1995 |
| 5415303 | Railcar cushion unit A railway car cushioning device is provided for minimizing slack between railway cars. The cushioning device is provided with a piston and piston rod disposed within the cylinder. The cylinder is filled with an oil and gas mixture. A housing surrounds the... | 05/16/1995 |
| 5261450 | Pressure relief vent with surge suppression A device relieves a positive pressure difference between the inside of a vessel and the outside of the vessel through an opening in the vessel. The device has a base portion, a cap portion and a biasing means. The base portion has a means for mounting the... | 11/16/1993 |
| 5245976 | Air induction control device An air induction control device for an internal combustion engine comprises means defining a communication passageway for communicating between air at atmospheric pressure and the air in the downstream passageway from a throttle valve. A valve member is d... | 09/21/1993 |
| 5174327 | In-line check valve An in-line check valve includes a housing defining a cavity with an inlet and an outlet, a removable seat attachable to the inlet, a piston movably positioned in the housing and including a seal that operably engages the seat, and a spring positioned arou... | 12/29/1992 |
| 5113837 | Air induction control device An air induction control device for an internal combustion engine comprises means defining a communication passageway for communicating between air at atmospheric pressure and the air in the downstream passageway from a throttle valve. A valve member is d... | 05/19/1992 |
| 5097865 | Valved flash sterilization container A pressure responsive valve assembly for a sterilization container having a valve opening comprises a valve closure member for closing the opening and a fluid tight plenum chamber including a rigid wall and an opposite movable wall connected to the valve ... | 03/24/1992 |
| 5065790 | Check valve A pneumatic check valve includes valve connections having a common axis of symmetry and a valve body at least partially guided in a droplet-shaped member disposed between the two connections to substantially eliminate flow and restriction losses occurring... | 11/19/1991 |
| 5036882 | Valve assembly for decanter for wastewater treatment facility A pressure responsive valve assembly for use in a decanting apparatus for a wastewater treatment reactor. The valve assembly includes a cylindrical valve plate, a valve member support structure, a valve spring, and a valve member comprising a valve stem a... | 08/06/1991 |
| 4905657 | Emission control valve with gas flow shut-off A gas flow control valve for engine crankcase emissions includes an enclosure and a hollow valve element which is supported on a rod to permit sliding movements in response to a balance of forces produced by gas pressure and a closing spring located withi... | 03/06/1990 |
| 4798329 | Combined fuel injector and pressure regulator assembly A duty-cycle type electromagnetic injector assembly has a valve and cooperating valve seat with the valve being positioned away from or against the valve seat depending upon whether an associated electrical coil is energized; a housing generally contains ... | 01/17/1989 |
| 4781217 | Pulse-irrigation method and apparatus A pulse-irrigation system comprises a pressurized water supply line supplying water in a continuous, non-interrupted manner, a water irrigation device, and a pulsating device for converting the pressurized water of the line to the pulsating output when su... | 11/01/1988 |
| 4766924 | Pressure relief valve A relief valve comprises a stationary valve seat and a poppet member which has a valve surface sealingly engageable with the stationary valve seat. The poppet member has an axially extending wall in the vicinity of the valve surface. When the poppet valve... | 08/30/1988 |
| 4765364 | Pressure activated valve for sanitary systems A pressure activated valve apparatus for axial in-line positioning within sanitary systems, such as steam lines for food processing, in which the entire apparatus, including the spring biasing and valve elements are positioned within the flowing media. Th... | 08/23/1988 |
| 4748003 | Container for flash sterilization A sterilization container is provided with relatively large top and bottom apertures to allow hot steam to rapidly pervade the interior of the container through the top while flushing cool air out the bottom. The apertures are provided with pressure actua... | 05/31/1988 |
| 4742997 | Gas spring with separate charging and pressure relief valves For use in a system comprising a source of pressurized fluid and a plurality of lines extending to a plurality of gas springs, a gas spring comprising a cylindrical body with a bore, a piston rod positioned in the body and having an end projecting beyond ... | 05/10/1988 |
| 4727902 | Valve arrangement A pressure relief valve for a hot gas generator is constructed as a valve arrangement which can be subjected to high temperature shocks and abrasion causing gaseous streams. The valve arrangement is constructed so as to have a prolonged operative life des... | 03/01/1988 |
