Did You Know...
...that Robert Adler has the dubious distinction of being the Father of the Couch Potato? Back in 1955 Adler was employed by what was then Zenith Radio Corp., where he was charged to invent something that would allow viewers to turn down the TV volume without leaving their chairs. After a series of flops (such as a wired contraption that people tripped over), Adler hit on the idea of using sound waves. Thus the Remote Control was born...
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| Number | Title | Issue Date |
| 7559338 | Keyless fire hydrant protection system The protection system protects a fire hydrant. The protection system includes a nozzle, a protection device, and a bracket assembly. The nozzle defines a bore, is in fluid communication with an interior of the fire hydrant, and is adaptable to receive a fire hose. T... | 07/14/2009 |
| 7458391 | Assembling a siphonable filler tube with a check valve on a fuel tank A fuel filler tube assembly including a one-way valve or check valve. The tube assembly is adaptable for pre-assembly on either a metal or plastic fuel tank and employs a common check valve with an adapter tube for plastic tanks. The valve employs a flapper with spa... | 12/02/2008 |
| 7426979 | Exhaust gas control valve An exhaust gas control valve includes a valve seat, a valve plate having a first exhaust gas pressure receiving area corresponding to an opening area and a second exhaust gas pressure receiving area larger than the first area; and a spring for closing the valve. In ... | 09/23/2008 |
| 7249611 | Check valve A top entry check valve including a valve body with an access port. A compressible hanger body engages a portion of the valve body and is positioned in alignment with the access port of the valve body. A clapper is connected to the hanger body so that the clapper is... | 07/31/2007 |
| 7195032 | Unidirectional, adjustable flap valves The invention provides a flap valve for controlling the air pressure within a protected space defined by walls, the flap valve including a valve frame attachable to an opening made in the walls, a valve flap, articulated at least indirectly to the frame and being su... | 03/27/2007 |
| 7152622 | Check valve A top entry check valve including a valve body with an access port. A compressible hanger body engages a portion of the valve body and is positioned in alignment with the access port of the valve body. A clapper is connected to the hanger body so that the clapper is... | 12/26/2006 |
| 7147001 | Fuel-transfer system A fuel-transfer system is provided for a fuel system of a vehicle. The fuel-transfer system includes a filler neck and a fuel tank having top and bottom walls. The fuel-transfer system includes a tube and a fuel conductor. The fuel conductor includes a housing and a... | 12/12/2006 |
| 7137405 | Low pressure check valve A check valve for preventing backflow of media including a valve movably coupled to a carrier body, the valve including a flexible membrane disposed therein such that the flexible membrane flexibly engages an aperture in the carrier body to prevent backflow of media... | 11/21/2006 |
| 6994130 | Capless automotive fueling system A capless automotive fueling system having a funnel with a port open to receive a fuel filling nozzle. A spring loaded valve is movable between an open position in which the port is open and a closed position in which the fuel valve overlies and sealingly covers the... | 02/07/2006 |
| 6968874 | Capless automotive fueling system A capless automotive fueling system having a funnel with a port open to receive a fuel filling nozzle. A spring loaded valve is movable between an open position in which the port is open and a closed position in which the fuel valve overlies and sealingly covers the... | 11/29/2005 |
| 6901954 | Safety relief valve A safety relief valve is provided for use in association with a liquid storage tank. The safety relief valve generally includes a valve base, a valve seal plate, a hinge mechanism and a lever mechanism. The valve seal plate is pivotally coupled to the valve base by ... | 06/07/2005 |
| 6694996 | Swing check backflow preventor having check valve with lever arm A swing check valve for controlling fluid flow, including a valve housing having a port for fluid flow therethrough. A valve assembly is disposed within the valve housing for controlling the fluid flow therethrough, and includes a valve seat communicating... | 02/24/2004 |
| 6668858 | Check valve A check valve is provided having a valve body and a sealing assembly within the valve body. The sealing assembly is biased, via a biasing force, in a seated position against a valve seat adjacent or surrounding an inlet port of the valve body. The sealing... | 12/30/2003 |
| 6637449 | Pressure sensible valve for exhaust muffler and method of assembling same A valve seat structure is secured to an outlet end of a passing pipe installed in an exhaust muffler. The valve seat structure includes a flat seat surface portion which extends around the outlet end of the passing pipe. A valve plate structure is pivotal... | 10/28/2003 |
| 6581721 | Valve for a control muffler A valve for a control muffler includes: a valve element which is swingably journaled on a support shaft 5 supported by shaft holes 41a of a pair of first shaft supporting portions 41 inside the support shaft 5; bushes 6 which are respectively interposed b... | 06/24/2003 |
| 6273399 | Air pressure stabilizer An air pressure stabiliser device is adapted to be located in a aperture in a wall, which may be provided by ductwork, extending into and from a room within which the pressure is to be maintained in excess of atmospheric pressure, but which is vented when... | 08/14/2001 |
| 6264452 | Reinforcement pin for check valve A scroll compressor has a check valve plate assembly with a reinforcing device to increase the strength of the check valve plate. The check valve plate is stamped from a relatively thin steel reed material. Notched areas are provided during stamping to en... | 07/24/2001 |
| 6247489 | Check valve A valve is disclosed. The valve has a housing that defines a central area and has at least two flow ports therethrough. A cover is provided that has a flapper assembly pivotally attached thereto. The cover is removably attachable to the housing in a plura... | 06/19/2001 |
| 6050293 | Flapper check valve A check valve assembly mounted for engagement with a valve seat includes a flapper valve and a lever arm. The flapper valve includes a bracket pivotably mounted along a first hemisphere of the valve seat, a valve plate mounted to the bracket along a regio... | 04/18/2000 |
| 6026853 | Fuel tank filler neck check valve The present invention provides a check valve including a seal door which is normally spring biased towards a closed position but which is responsive to a flow of fuel for displacing to an open position to allow fuel to pass in a first direction and for th... | 02/22/2000 |
| 5947152 | Check valve and backflow preventer A check valve or backflow preventer has a valve mechanism mounted to a valve cover for removal and replacement as a unit. The valve clapper is resiliently supported to accommodate variations in tolerance. The valve seat is removably secured within the val... | 09/07/1999 |
| 5904338 | Valve A valve, includes a housing formed with a valve seat and having an inlet port and an outlet port; and a shut-off member positioned in a passageway between the inlet port and outlet port and so adjustable as to enable a separation of the inlet port and the... | 05/18/1999 |
| 5855224 | Flapper check valve A check valve assembly mounted for engagement with a valve seat includes a flapper valve and a lever arm. The flapper valve includes a bracket pivotably mounted along a first hemisphere of the valve seat, a valve plate mounted to the bracket along a regio... | 01/05/1999 |
| 5794655 | Swing-type check valve assembly having an integrated valve seat and valve housing cover A swing-check valve for controlling fluid flow includes a valve housing and a valve assembly connected to a removable cover of the valve housing for rigid positioning of the valve assembly within the interior of the valve housing. Moreover, the valve asse... | 08/18/1998 |
| 5769116 | Composite action type water-hammer-preventive check valve The invention has its object to radically resolve an untapped technical issue in a non-water hammering check valve device, in which a valve disc, a valve seat and a surrounding flow passage are configured such that the valve disc is substantially seated o... | 06/23/1998 |
| 5711341 | Swing-type check valve assembly retained within a valve housing by abutting engagement with a valve cover and a port of the valve housing A swing-check valve for controlling fluid flow includes a valve housing and a valve assembly that engages a removable cover of the valve housing for rigid positioning of the valve assembly within the interior of the valve housing when the cover is mounted... | 01/27/1998 |
| 5709240 | Check valve and backflow preventer A check valve or backflow preventer has a valve mechanism mounted to a valve cover for removal and replacement as a unit. The valve clapper is resiliently supported to accommodate variations in tolerance. The valve seat is removably secured within the val... | 01/20/1998 |
| 5671769 | Swing check valve and method for repairing same A swing check valve, which is adapted for automatically inhibiting back flow of fluid from an outlet thereof to an inlet thereof, includes a clapper member and a housing. The housing has a first body portion, which includes its own valve seat and its own ... | 09/30/1997 |
| 5411056 | Pressure relief valve A pressure relief valve, for pressurized fluid storage vessels such as a rail tank car for volatile liquids, has a flap valve for rotational movement in a valve passage between a closed position seated on a valve seat and blocking the passage and an open ... | 05/02/1995 |
| 5381821 | Fluid check valve with replaceable flapper assembly A replaceable flapper and keeper assembly for a fluid check valve. The assembly may be part of a larger replaceable seat ring assembly or be adapted to be secured directly on an integral check valve seat. The flappers have hinge brackets and are pivotally... | 01/17/1995 |
| 5236007 | Top-entry check valve having retainer ring A top-entry check valve having a seat, cage, disc and removable bonnet utilizes a retainer ring to prevent movement of the seat, cage and disc in the downstream direction. An annular shoulder in the valve body prevents movement of the seat, cage and disc ... | 08/17/1993 |
| 5191913 | Top-entry check valve with pin fasteners A top-entry check valve having a valve body, a valve cartridge assembly and a removable bonnet utilizes pin fasteners to prevent movement of the valve cartridge assembly in the downstream direction. The valve cartridge assembly includes a seat, a cage, a ... | 03/09/1993 |
| 5161566 | Top-entry check valve with screw-in seat A top-entry check valve having a seat, cage, disc and removable bonnet utilizes threaded engagement of the seat and mating counterbore in the valve body to prevent movement of the seat, cage and disc in the downstream direction. An annular shoulder in the... | 11/10/1992 |
| 5161570 | Top-entry check valve with threaded fasteners A top-entry check valve having a seat, cage, disc and removable bonnet utilizes threaded fasteners to prevent movement of the seat, cage and disc in the downstream direction. A annular shoulder in the valve body prevents movement of the seat, cage and dis... | 11/10/1992 |
| 5156183 | Top-entry check valve having spring retainer A top-entry check valve has a valve chamber containing a seat, cage, disc and utilizes a spring retainer to prevent movement of the seat, cage and disc in the downstream direction. A removable bonnet covers an access opening the valve chamber. The seat an... | 10/20/1992 |
| 5156182 | Top-entry check valve with pin fasteners A top-entry check valve having a seat, cage, disc and removable bonnet utilizes pin fasteners to prevent movement of the seat, cage and disc in the downstream direction. An annular shoulder in the valve body prevents movement of the seat, cage and disc in... | 10/20/1992 |
| 5010919 | Subsea barrier valve A subsea barrier valve 20 with a valve clapper 60 adapted for free swinging movement on a clapper shaft 62 between a position which closes the flow passage through the valve and a position proximate the fully open position such that the clapper is held op... | 04/30/1991 |
| 4872479 | Swing check valve A swing check valve having a readily replaceable valve seat and having a cage surrounding the disc in the final closing movement of the disc sized to guide the disc evenly onto the seat.... | 10/10/1989 |
| 4872477 | Swing check valve A swing check valve having a readily replaceable valve seat and having a cage surrounding the disc in the final closing movement of the disc sized to guide the disc evenly onto the seat.... | 10/10/1989 |
| 4872480 | Swing check valve A swing check valve having a readily replaceable valve seat and having a cage surrounding the disc in the final closing movement of the disc sized to guide the disc evenly onto the seat.... | 10/10/1989 |
