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| Number | Title | Issue Date |
| 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 |
| 7267323 | Ball valve with cartridge A ball valve has a valve body having a chamber, aligned inlet and outlet passages providing flow therethrough, and an access passage communicating with the chamber. A replaceable cartridge assembly is seated in the chamber and includes a generally spherical ball hav... | 09/11/2007 |
| 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 |
| 6910673 | Valve with calibrated flow orifice insert A valve with a calibrated flow orifice insert for use in Heating, Ventilation, and Air Conditioning (“HVAC”) applications so as to provide metered flow through the valve. The insert is used as a flow control device and is inserted into a conventional threaded ba... | 06/28/2005 |
| 6488261 | Ball valve A ball valve includes a valve body, a cap, a disk spring, a driven member, and a spherical body. The disk spring and the driven member are disposed in the cap such that the driven member is urged by the disk spring to displace, thereby causing the driven ... | 12/03/2002 |
| 6302373 | Ball valve A ball valve has a main body provided with a rib plate, a receiving cell chamber, a first threaded tubular portion in communication with the receiving chamber, an extension channel, and a second threaded tubular portion in communication with the extension... | 10/16/2001 |
| 6286811 | 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... | 09/11/2001 |
| 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 |
| 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 |
| 5577708 | Ball valve A ball valve includes a housing which has at least two connector holes defined therein which communicate to a hollow space in which a plug is rotatably disposed, the plug has at least two recesses defined therein and each of the recesses has a sealing ele... | 11/26/1996 |
| 5560392 | Valve for a measuring device A valve for a measuring device for the measurement of the physical properties of a fluid in a pipe line has a housing with two coaxial openings for the passage phased in the pipe line. In the housing a valve closure ball is rotatably mounted about a trans... | 10/01/1996 |
| 5313976 | Top entry ball valve and method of assembly A top entry floating ball valve (10) and method of assembly including a downstream metal seat (62) mounted within an annular recess about a downstream flow passage (22) and an upstream metal seat (80) urged by a Belleville spring (78) into engagement with... | 05/24/1994 |
| 4976403 | Valve with metallic bellows valve stem seal A fire-resistant valve 10 with a valve stem 40 mounted for linear motion through a valve stem bore 41 in the valve body 12 and connected to a valve element 20 by a connection means which effects movement of the valve element 20 between its valve open and ... | 12/11/1990 |
| 4936547 | Eccentric ball valve A ball valve of the type comprising a housing having a ball mounted for 90° rotation therein between open and closed valve positions utilizes a ball whose exterior surface is shaped to define two noncoaxial hemispherical surface portions of like size and... | 06/26/1990 |
| 4423749 | Angle cock improvements A shutoff valve for use in a transportation environment has a body with an internal passage and means on the passage wall for attaching the body. There is a chamber in the body in communication with the passage and there is an opening in the body in align... | 01/03/1984 |
| 4324281 | Method, composition and product employing a tetracarboxylic dianhydride to improve adhesion between a metal member and a contiguous rubber skim stock This invention is directed to a method, a rubber skim stock and a product containing the skim stock having improved adhesion between a metal member and contiguous rubber skim stock. The invention lies in the discovery that improved rubber-to-metal adhesio... | 04/13/1982 |
| 4319734 | Valve A ball valve having a cylinder slidable in a port. The cylinder has a lip which is pressed, by a spring, against a spherical surface surrounding a passage through the ball. A sleeve is slidable to a position over the cylinder, the sleeve having an annular... | 03/16/1982 |
| 3985334 | Ball valve A ball valve with an actuator wherein a seal assembly with a combination O-ring swivel and seal for producing a tight seal is hidden in a pocket isolated from the flow of fluid through the valve by an inlet reentrant flange and the valve body. The swivel ... | 10/12/1976 |
| 3960363 | Ball valve A ball valve with an actuator wherein a seal assembly with a combination O-ring swivel and seal for producing a tight seal is hidden in a pocket isolated from the flow of fluid through the valve by an inlet reentrant flange and the valve body. The swivel ... | 06/01/1976 |
