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 |
| 7337797 | Ball valve and method of manufacture A ball valve having a ball valve assembly disposed within a unitary, elongated tube is provided. The unitary, elongated tube has a first, inlet end, a medial portion having a cross-sectional area, and a second, outlet end. The first, inlet end is a swedged tube havi... | 03/04/2008 |
| 7325784 | Ball valve A ball valve includes symmetric first and second valve casings (100) and (200) which respectively have first and second ball seats (120) and (220), first and second coupling flanges (130) and (230), first and second lever re... | 02/05/2008 |
| 7290556 | Fire collar A fire collar or fire damper for location within a concrete slab of a building. The device incorporates a damper arrangement (12) and a heat detector (18, 19) comprising a metal alloy or lead which melts when a present temperature is reached, causing t... | 11/06/2007 |
| 7221448 | Test cell for a noble gas polarizer The invention relates to a sample cell with a glass body comprising a gas inlet and a gas outlet and at least one orifice, a plane glass window is fused into the orifice, the shape and size of the window corresponds to the shape and size of the orifice, the orifice ... | 05/22/2007 |
| 7204474 | High-pressure plug valve A plug valve has a valve body, a cage fitted within the valve body and a rotatable plug housed within a cylindrical cavity in the cage, for controlling fluid flow through the valve. The cage has first and second opposed flat side surfaces, each side surface has a po... | 04/17/2007 |
| 7163189 | Tapping valve of plastics material for transport and storage containers for liquids A tapping valve of plastics material for transport and storage containers for liquids, which is constructed as a flap valve or ball valve, includes a valve housing with an inlet connection connectable to an outlet connection of the liquid container and an outlet con... | 01/16/2007 |
| 7121295 | Internal blow out preventer ball and seat An internal blow out preventer is provided that includes a ball valve including a tubular assembly having a central passageway with upper and lower seats mounted therein. A ball is rotatably received between the upper and lower seats and includes an external surface... | 10/17/2006 |
| 6969047 | Ball valve seat seal A ball valve includes a body having a passageway there through with a ball member disposed in the passageway and mounted for selective rotation between valve open and valve closed positions to control fluid flow. A pair of flange grooves are provided in the body on ... | 11/29/2005 |
| 6959719 | Fire collar A fire collar or fire damper for location within a concrete slab of a building. The device incorporates a damper arrangement (12) and a heat detector (18, 19) comprising a metal alloy or lead which melts when a preset temperature is reached, causing th... | 11/01/2005 |
| 6904944 | Fuel filling device and fuel leakage detection method A fuel filling device is provided with a fuel supply adjusting section which adjusts the amount of fuel supplied, a fuel feed line which feeds fuel from a fuel supply adjusting section to a vehicle W, a nozzle removably coupled to vehicle W that supplies fuel from f... | 06/14/2005 |
| 6591859 | Ball valve A plastic ball valve has a layer of metal film coated on the ball by electroplating. This prevents the ball from directly contacting the inner surface of a pipe housing socket. Microorganisms are prevented from growing at the junction of the ball and pipe... | 07/15/2003 |
| 6435474 | Non-contaminating gas-tight valve for semiconductor applications A non-contaminating gas-tight valve for controlling a flow of granular polysilicon. The valve has a spherical valve member formed from single-crystal polysilicon, so that any particles worn from the valve member during use will be non-contaminating polysi... | 08/20/2002 |
| 6260820 | Valve with rotatable valve member and method for forming same A method of producing a valve includes the steps of: providing a mold comprising a pair of mating mold halves, with each of the mold halves including a mold cavity; providing a valve member-stem unit comprising a valve member of substantially circular cro... | 07/17/2001 |
| 6050545 | Bulk container valve There is disclosed herein a bulk container valve adapted for use with a bulk container having a tubular spout. The valve comprises a plastic housing having an interior chamber connecting a front port to a rear port. The housing includes a rear fitting abo... | 04/18/2000 |
| 6047952 | Ball valve assembly An improved ball valve assembly is provided for use on firefighting equipment and other applications. The ball valve assembly includes an improved seal assembly which includes both a load bearing seal element and a soft elastomeric seal element. Both seal... | 04/11/2000 |
| 6029948 | Valve assembly having floating retainer rings A valve assembly including a valve housing having a fluid passageway extending through it. The fluid passageway has an inlet portion having a cross-section defined by a substantially annular inlet surface, an outlet portion having a cross-section defined ... | 02/29/2000 |
| 5911405 | Multi-ported diverter valve assembly The metallic housing of a diverter valve assembly has a plurality of thredly positioned inserts therein through which different port passage paths are established with a multi-ported ball valve element angularly displaceable inside the housing while seal... | 06/15/1999 |
| 5730420 | Ball valve having one-piece packing A ball valve has a body with a cylindrical bore extending axially inwardly from the exterior of the body and defining a valve chamber. Inlet and outlet passages extend from the exterior of the body inwardly to the chamber. A ball valve member is disposed ... | 03/24/1998 |
| 5588638 | Ball valve The present invention is a ball valve that prevents scale formation on the exterior surface of the ball element, and therefore extends the life and efficiency of the ball valve. The ball valve comprises a ball element, a housing, and a jacket. The ball el... | 12/31/1996 |
| 5586749 | Composite polyethylene and transition valve A valve body pressure formed from pipe components includes an annular portion for receiving a ball closure member. A pair of conduit portions are connected to the annular portion and the ball. A stem housing for rotatably supporting a valve stem extends u... | 12/24/1996 |
| 5551467 | Ball valve with controlled flow variation A device for controlling fluid flow through a conduit includes a ball valve with a ball having a conduit terminating at an end thereof in an outlet orifice having a non-circular shape. The orifice shape is compound and may be selected to linearize the flo... | 09/03/1996 |
| 5201493 | Electrically insulated ball valve device Disclosed is relating to a electrically insulated ball valve device to be interposed between a couple of metallic pipes for supplying fluid so as to electrically insulating the couple of metallic pipes each other. The device includes a valve body having t... | 04/13/1993 |
| 5170989 | Sealing assembly for valve member A seat assembly (28) for a valve member (20) includes a seat carrier (40) defining a pocket to receive a rigid seat ring (42). The outer peripheral surface (56) of the rigid seat ring (42) is spaced radially from the inner peripheral surface (45) of the s... | 12/15/1992 |
| 5141018 | Quarter turn ball valve A quarter turn cast iron ball valve where the ball inside is cast of metal, solid or hollow, and forms a cylinder or tube across the inside. This tube is "open" on both ends so that when the ball is seated and turned to its open position there is a diamet... | 08/25/1992 |
| 5104092 | Ball valve with improved sealing apparatus A ball valve adapted to be used in applications where the temperature of the liquid medium is subjected to various swings in temperature. The valve includes a valve body which is retained between a pair of end connectors to create a valve chamber therebet... | 04/14/1992 |
| 5090447 | Transparent ball valve assembly A thermoplastic valve assembly for use in controlling the flow of corrosive fluids comprising a transparent housing having a passageway through which fluid may flow, a transparent ball disposed in the passageway for rotation between an open position and a... | 02/25/1992 |
| 5069240 | Flexible seating structure for rotary valves A flexible seating apparatus is disclosed for use in rotary valves comprising a flexible seat ring attached to one of the valve body and valve closure member in a cantilevered fashion and maintained thereagainst by a resilient member, the latter being hel... | 12/03/1991 |
| 5067691 | Ball cock A ball cock including a housing of a thermoplastic material. The housing is composed of two parts which are integrally connected to each other. A ball plug is made integrally with a pivot of plastics material. The pivot is mounted in a bore extending tran... | 11/26/1991 |
| 4968000 | Valve A valve with a valve body (11, 43) in the form of a ball or of a segment of a ball has a second, concave, spherical sealing surface (20, 53) which is provided to be resiliently urged against a first sealing surface of the valve body, and at least an outer... | 11/06/1990 |
| 4960262 | Ball valve and methods of fabrication A ball valve and a method for fabricating this ball valve wherein a ball seat, formed of a synthetic resin, is mounted at each end of a flow passage in a ball of the valve. A sealing end portion of the ball seat contacts the spherical surface of the ball ... | 10/02/1990 |
| 4940208 | Ball valve A ball valve (10) has a ball valve member (34) mounted for floating movement in a valve chamber (32) between an upstream metal seat (102) and a downstream metal seat (104). Each metal seat (102, 104) fits within a recess (100) and has a body portion (110)... | 07/10/1990 |
| 4890816 | Valve seats A metal valve seat for a butterfly valve or ball valve and has the form of an apertured disc with a radially outward part (4A) by which it is securable to a valve body and a radially inward dished part (4B) which projects laterally around the disc apertur... | 01/02/1990 |
| 4869450 | Ball valve A ball valve is provided which comprises a valve body formed from a tubular member with a cylindrical hole extending therethrough, a stem having one end thereof projecting into the hole, and a ball fixed to an end of the stem. The ball has a circular bore... | 09/26/1989 |
| 4815704 | Ball valve The ball valve according to my invention comprises a pressure-tight housing ith at least one inlet-side and at least one outlet-side connecting pipe element, a valve ball made of sintered ceramic material, a valve seat and an operating shaft connected to t... | 03/28/1989 |
| 4813649 | Ball valve A ball valve is provided which comprises a valve body formed from a tubular member with a cylindrical hole extending therethrough, a stem having one end thereof projecting into the hole, and a ball fixed to an end of the stem. The ball has a circular bore... | 03/21/1989 |
| 4792117 | Material for valve seats A material for valve seats is molded of a composite resin. The composite resin is composed of polytetrafluoroethylene and a copolymer of tetrafluoroethylene and perfluoroalkylvinylether. The amount of the copolymer falls in the range of from 3% to 30% by ... | 12/20/1988 |
| 4765592 | Material for valve seats A material for valve seats is a composite material comprising a base material composed of PTFE and 3 to 30% by weight of PFA based on the total amount of the base material, and 5 to 30% by weight of glass fiber or 5 to 25% by weight of carbon fiber based ... | 08/23/1988 |
| 4753443 | Composite annular seals for rotary ball valves and ball joints A composite annular seal for a rotary ball valve or ball joint comprises a sealing ring (C) of low friction material intended to engage the ball (2), a first metal ring (A) of which part of one face is adapted resiliently to engage and conform with part o... | 06/28/1988 |
| 4725042 | Ball valve assembly A ball valve assembly employing valve seats which are constructed of teflon and form part of end seal members, with the teflon valve seats being of a thin and deformable arrangement backed by an elastic loading ring which is isolated from the liquid. The ... | 02/16/1988 |
| 4714236 | Ball valve, particularly for gases An improved ball valve, particularly for gases, includes a case of unitary construction accommodating a hollow ballshutter supported between two juxtaposed gaskets and being controllable rotatively through a screw block having an external knob grip. The s... | 12/22/1987 |
