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 |
| 7299824 | Multiple-mode fluid valve A multi-position fuel valve includes a main body having an enclosed chamber with a number of inlet ports and an outlet port and associated seats in the chamber. Disposed inside the chamber is a revolving rotor that is connected to a selector handle located outside t... | 11/27/2007 |
| 6857440 | Safety valve In a method for a safety valve plus such a safety valve, the safety valve has the form of a valve body axially displaceable in a cavity with an inlet on either side of which are arranged outlets, whereby liquid and/or gas flow takes place from the inlet and past the... | 02/22/2005 |
| 5960815 | Air nozzle of inflating device An inflating device is provided with an air nozzle having two connectors of different specifications and engageable with inflation valves of different specifications. The air nozzle is composed of a shell, a distribution valve chamber located in the shell... | 10/05/1999 |
| 5509391 | Helmoltz isolation spool valve assembly adapted for a hydraulically-actuated fuel injection system A spool valve assembly for isolating and/or minimizing actuating fluid pressure fluctuations between a pair of actuating fluid manifolds in a hydraulically-actuated fuel injection system. The spool valve assembly may be integrally formed with an actuating... | 04/23/1996 |
| 5398594 | Volume flow control for hydraulic systems of vehicles, especially for steering devices of motor vehicles A volume flow control for a hydraulic system of a vehicle has a pump for supplying a main consuming device and an auxiliary consuming device with a hydraulic medium. A valve having a main connection for connecting the pump to the main consuming device an ... | 03/21/1995 |
| 5287841 | Flow divider and utilization system A flow divider (20) is located between a first fuel return line (18), leading from an engine to the flow divider (20), a second fuel return line (22) leading from a first flow divider outlet (46) to a first tank (A), and a third fuel return conduit (24) l... | 02/22/1994 |
| 5152312 | Automatic shuttle valve An automatic shuttle valve having a valve body with a bore defined in it. A piston slide in the bore between first and second and positions and a third intermediate position. The valve distributes hydraulic fluid from a fluid supply through first and seco... | 10/06/1992 |
| 5085243 | Hydraulic isolation valve for railway vehicle An isolation valve device for a hydraulic brake system of a railway vehicle including passageways via which hydraulic pressure communication is established between a pressure controller and the brake units of each truck of a railway vehicle, and diaphragm... | 02/04/1992 |
| 4993447 | Pressure-regulating method and apparatus A pressure-regulating device for controlling fluid pressure flow from a source to two fluid pressure-operated devices (40, 50) includes first and second pressure regulators (22, 24), each having an inlet section, an outlet section and a control section wi... | 02/19/1991 |
| 4913181 | Priority valve and method for using same A priority valve (10) useful in, for example, an aircraft constant speed drive system controls sump oil level and prioritizes oil flow to several critical components during periods of oil supply interruption. The priority valve (10) includes a movable spo... | 04/03/1990 |
| 4860781 | Hydraulic isolation valve A safety system for hydraulic brakes in a train brake system wherein a spring biased spool valve controls delivery from a hydraulic fluid source to at least two sets of spring applied hydraulic brake actuators and wherein said spool valve is also biased b... | 08/29/1989 |
| 4574894 | Ball actuable circulating dump valve A dump valve for use in a downhole motor having a spring-based piston responsive to fluid flow to close a fluid flow port and to a ball actuated force to reopen the port.... | 03/11/1986 |
| 4325400 | Fluid flow equalizing valve arrangement A fluid flow equalizing valve has two coupled valve devices for controlling flow to or from a common connection to respective ones of a pair of actuators. Control elements of the valve devices are responsive to intermediate pressures in flow paths to or f... | 04/20/1982 |
| 4320622 | Pump unloader and accumulator charging valve In an hydraulic system an unloader valve is located in a line between a pump and an hydraulic accumulator. The unloader valve is operative to prevent the accumulator from being overcharged and to allow the pump to re-charge the accumulator should the pres... | 03/23/1982 |
| 4301825 | Fuel flow control valve assembly A plurality of fuel valve injectors for a diesel engine combustion chamber in which a fuel flow control valve assembly having a high pressure fuel inlet is intermittently pressurized, and a low pressure supply pump inlet connected to a fuel pressurization... | 11/24/1981 |
| 4265269 | Device for automatically cutting off damaged branches of pneumatic and hydraulic systems The device has a casing with an inlet chamber and outlet chambers communicating with one another through a passage in which is loosely mounted a pilot valve having a piston rod with pistons secured at the ends thereof and defining with the casing shut-off... | 05/05/1981 |
| 4037617 | Multiway pneumatic valve and its application to brake Multiway pneumatic valve comprising supply inlet and a plurality of separate outlets connected to the inlet by separate circuits. Third and fourth circuits are respectively in series with first and second circuits. Calibrated diaphragms are exposed at their pe... | 07/26/1977 |
| 3999932 | Valve assembly having leak detection apparatus A valve assembly including a gas valve having first and second redundant valve members which are individually operable to open and close respective inlet and outlet valve ports, and a pressure regulating apparatus interposed between the inlet and outlet v... | 12/28/1976 |
| 3987703 | Combined restrictor and dead engine lowering valve A hydraulic control system having a load-lifting hydraulic motor, a source of pressurized fluid and a pilot-operated directional control valve for directing fluid for operation of the motor is provided with a combined restrictor and shuttle valve assembly... | 10/26/1976 |
