Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Number | Title | Issue Date |
| 7395836 | Screwable check valve Disclosed is a check valve (5) that is screwed into a threaded bore (1) of a housing (2) of a hydraulic subassembly between a first pressure side (26) and a second pressure side (27) by means of an external thread (11) which... | 07/08/2008 |
| 7392819 | Method of setting the ball travel of a valve-lash-adjusting element The invention relates to a method of setting the ball travel of a valve-closing body, designed as valve ball, of a control valve of a hydraulic valve-lash-adjusting element which has a plunger with a plunger head and a central bore, a valve seat being provided at th... | 07/01/2008 |
| 7350534 | Hollow ball valve assembly Apparatus and methods for constructing a valve comprising a sealing member and a hollow ball operable to sealingly engage the sealing member. A guide housing disposed about said hollow ball and does not constrain rotation of said hollow ball. A spring is disposed be... | 04/01/2008 |
| 7337796 | Safety relief valve having a low blow-down value and spring therefore A safety relief valve is provided that comprises a body comprising a chamber therein and an inlet and an outlet, the inlet comprising an inlet valve seat; a disk member closeable on the inlet valve seat; and a mechanism in the body biasing the disk member to rest on... | 03/04/2008 |
| 7311119 | Valve apparatus A valve apparatus is small, and regulates a fuel amount by restricting a lift amount of a valve. A columnar portion is formed on a pump body. The columnar portion is inserted into a check valve and a washer formed with a protruding portion which protrudes outward fr... | 12/25/2007 |
| 7311118 | Floating ball check valve In an improved floating ball check valve including a body having an outlet port, a cap, having an inlet port, joined with the body, a ball guide slidably received within the body and having a ball pocket for receiving a sealing ball, a biasing spring for biasing the... | 12/25/2007 |
| 7290554 | Embedded microfluidic check-valve Embedded check-valve manufacturing assembly (100, 600) for subsequent firing and integration in a micro-fluidic system. The assembly can include a check-valve chamber (104, 604), an inlet port (106, 606) and an outlet port (108, 608) form... | 11/06/2007 |
| 7290555 | Embedded microfluidic check-valve Embedded check-valve manufacturing assembly (100, 600) for integration in a micro-fluidic system. The assembly can include a check-valve chamber (104, 604), an inlet port (106, 606) and an outlet port (108, 608) formed from at least one l... | 11/06/2007 |
| 7044164 | Flap-type vehicle cabin exhauster A pressure relief valve (10) includes a housing (20) defining an air flow passage (34). A flap (90) overlies the air flow passage (34). At least a portion (92, 94) of the flap (90) is movable, in response to an air pr... | 05/16/2006 |
| 7036523 | Serviceable check valve Within a check valve, a spring urges a poppet into the closed position. If the fluid flow through the valve attempts to reverse, the poppet will seal against the valve seat by a combination of spring resistance and fluid pressure, thereby preventing all or a signifi... | 05/02/2006 |
| 7036756 | Anti-sputter fluid flow control apparatus for paint sprayers A fluid spray apparatus with a controlled supply of pressurized fluid delivered through a network of tubes to a spray head having a plurality of stop flow valves and nozzles that will automatically shut off the flow of fluid out of the nozzles when the pressure of t... | 05/02/2006 |
| 7032608 | Microfluidic check-valve embedded in LCP Embedded check-valve assembly (100, 600) for integration in a micro-fluidic system. The assembly can include a check-valve chamber (104, 604), an inlet port (106, 606) and an outlet port (108, 608) formed from at least one layer of liquid... | 04/25/2006 |
| 7021331 | Check valve with locked restraint mechanism Check valves including components having a straightforward and simple design allowing the components to be scaled down to an extremely small size without losing functionality or performance of the check valve. ... | 04/04/2006 |
| 7011103 | Vacuum relief assembly for I.C. engine intakes A Vacuum Relief Assembly for I.C. Engine Intakes is disclosed. Also disclosed is a device that permits outside air into the intake tract of an internal combustion engine in the event of an excessively high vacuum condition within the intake tract. Furthermore, the d... | 03/14/2006 |
| 6981512 | Tubular flow conduit with in-line integrated check valve and method of making same An integrated in-line tube and check valve assembly fabricated by end-form mandrel expanding an outlet end portion of deformable tube stock, such as metal, of nominal starting diameter, and concurrently end-forming a valve seat on the inside of the expanded tube sec... | 01/03/2006 |
| 6948513 | Integral check valve for nozzles A check valve for use in a section of a liquid flow line to control the intermittent flow of a liquid through the line, wherein the section of the line that is configured to received the valve has inlet and outlet ends with an opening through which liquid respective... | 09/27/2005 |
| 6929023 | Back flow prevention device for pipelines conveying fluids A back flow prevention device is shown for use in a plastic pipeline for conveying water, sewage, hydrocarbons or other fluids. A valve body features a flow control mechanism which is formed entirely or primarily of plastic materials. The valve body and its opposing... | 08/16/2005 |
| 6913450 | Suction valve coupling structure for reciprocating compressor A suction valve coupling structure for a reciprocating compressor is disclosed in which a piston being linearly moved in a cylinder upon receipt of driving force from an electric mechanism unit, according to which gas flows through a gas flow passage formed therein,... | 07/05/2005 |
| 6910494 | Composite component, in particular valve, and method for the production thereof The invention relates to a composite component, in particular a valve (10), and to a method for producing the composite component. The composite component comprises an inner component (14) configured as a cage, and an outer component (12) in the... | 06/28/2005 |
| 6848467 | Non-metallic, snap-together subsasembly of internal double check valve A valve proportioning assembly that incorporates a check valve assembly is improved in manufacture and assembly. The valve proportioning assembly includes a housing having a blind opening that receives a sub-assembly of two separate non-metallic components that mate... | 02/01/2005 |
| 6802701 | Suction valve assembly of compressor A suction valve assembly of a compressor includes: a piston disposed movable in a cylinder forming a compression chamber, having a suction passage for sucking a fluid and a valve seat formed at a front side thereof; a valve body contacted to the valve seat to open a... | 10/12/2004 |
| 6792968 | Pump assembly and method A pump assembly flows pressurized engine oil to hydraulic injectors in a diesel engine. The assembly includes a high-pressure pump with a bored piston passage. The outer end of the piston bore is closed by a plug assembly pressed in the bore. ... | 09/21/2004 |
| 6761182 | Method for configuration of a valve A method of configuring a valve comprised of a valve seat, a valve stem, a valve guide, and a relief compression spring. The method comprises calculating a compression force required to move the valve stem relative to the valve seat, using that calculated force to m... | 07/13/2004 |
| 6749407 | Method of installing valves in a micro-pump An exemplary method for making a micropump device is disclosed as providing inter alia a substrate (300), an inlet opening (310), and outlet opening (340), a pump chamber (370) and flapper valves (350, 360). The fluid inlet channel... | 06/15/2004 |
| 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 |
| 6622751 | Pressure valve for a reciprocating pump A pressure valve, particularly for a reciprocating piston pump for conveying pressure fluid in slip-controlled hydraulic brake systems, wherein the pressure valve has a valve seat body and a valve cover body with a pre-tensioning element and a valve eleme... | 09/23/2003 |
| 6546946 | Short-length reduced-pressure backflow preventor A double check valve reduced pressure backflow preventor assembly is configured to have a relatively small length, volume and/or weight. The assembly defines parallel, preferably coaxial, inlet and outlet directions. In one aspect, first and second check ... | 04/15/2003 |
| 6513543 | Backflow preventer valve A fluid handling assembly that includes a modular strut removably secured to a valve that permits easy access to internal valve parts for repair and inspection.... | 02/04/2003 |
| 6470911 | Check valve and fuel tank with check valve attached thereto A check valve attached to an inner wall of a main body of a fuel tank ensures a sufficient seal of the main body from outside, without increasing the required number of parts. The check valve communicates with a fuel conduit of a fuel inlet pipe and funct... | 10/29/2002 |
| 6427711 | Inline check valve An inline check valve having a piston member and a seat in a valve body having a larger diameter at the end thereof away from the piston. The seat is retained within a groove by a seat retainer which prevents removal of the seat from the groove without de... | 08/06/2002 |
| 6360766 | Check valve with an integral breakaway retainer A check valve plunger assembly for use in a fluid channel is provided. The check valve plunger assembly includes a check valve plunger having a first end, a second end, and a body portion. The body portion extends between the first and second end of the c... | 03/26/2002 |
| 6223765 | Casing construction for fuel dispensing systems A casing which provides a fluid and electrical interface between components of a fuel dispensing system. A column pipe which receives fuel pumped from an underground tank connects with a power head mounted in the casing. A check valve controls flow from t... | 05/01/2001 |
| 6199576 | Bi-directional cleanout with backflow preventer The invention is a bi-directional cleanout for pipelines such as sewer pipelines and a bi-directional cleanout with a built in backflow preventer. The backflow preventer is a check valve which allows fluid to flow in one direction, but not in the other di... | 03/13/2001 |
| 6029684 | Sewer inspection chamber with back-flow prevention valve An inspection chamber for use in sanitary sewer systems has an integral back-flow prevention valve. The valve can be installed through an access pipe with the inspection chamber in place underground. The valve does not interfere with the installation or r... | 02/29/2000 |
| 6004118 | Valve polarization means, for a fluid-working machine structure Inlet valves, with inlet cages, in inlet ports in a cylinder head, and outlet valves, with outlet cages, in outlet ports in the cylinder head, comprise mating combinations of elements which exhibit optimum and proper seating together. The bores and the ca... | 12/21/1999 |
| 5699859 | Well water recirculation valve and method of manufacturing thereof A well water recirculation valve comprising an in-line check valve and a calibrated orifice through the body of the check valve. The orifice communicates through the body of the check valve into an unchecked end thereof. In use in a water well having a su... | 12/23/1997 |
| 5584315 | Check valve assembly and method for mounting and installing check valves within a housing A check valve assembly, including a check valve and an associated check valve mounting flange. Additionally, a backflow preventer is shown, which uses a pair of check valve assemblies transversely positioned within a tubular housing. Also disclosed is a m... | 12/17/1996 |
| 5551479 | Combination ball and check valve A combustion ball and check valve for control of fluids through a conduit includes a unitary valve housing having a longitudinal opening extending therethrough, a ball valve closure member disposed within the housing adjacent a first end thereof and a one... | 09/03/1996 |
| 5546977 | Dual containment valve system An integral dual containment valve system for dual containment piping having inner carrier pipes for fluid and outer carrier pipes. The dual containment valve system includes an inner carrier housing connectable to the inner carrier pipes. A valve control... | 08/20/1996 |
| 5509437 | Dry hydrant check valve A dry (unpressurized) hydrant utilizes a hydrant pipe wherein a submerged end carrying a strainer assembly is placed at a predetermined depth within a body of water, such as a lake or a pond, with the unsubmerged end being located above ground adjacent th... | 04/23/1996 |
