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| Number | Title | Issue Date |
| 7089960 | Ball valve The present invention is a ball valve which may be attached to a fluid pipe for connection/disconnection between an entrance and an exit. More particularly, the present invention is a ball valve having a discharge orifice communicating with ambient air in addition t... | 08/15/2006 |
| 6843889 | Coke drum bottom throttling valve and system A coke drum bottom de-heading system having an internal shroud enclosure and a shroud end cap opened by a flange to a coke bottom de-heading valve capable of accepting the end of a gate valve upon actuation. Acting in coordination with the shroud enclosure to preven... | 01/18/2005 |
| 5590680 | External valve operating means An external valve operating means that forms a seal around the rotating valve stem of a valve operating under internal pressure is disclosed. This seal prevents the escape of fluids should the valve's primary seals fail. The external valve operating means... | 01/07/1997 |
| 5531244 | Hemispherical ball valve A ball valve for controlling fluid flow comprises a housing with a chamber therein and a fluid flow passage therethrough having an inlet and outlet portion to and from the chamber adjacent the lower end of the housing. An opening in the upper end of the h... | 07/02/1996 |
| 5275191 | Ball valve An apparatus for repairing a ball valve is disclosed. Generally, the ball valve contains an inner diameter which receives a ball member, and a first and second passageway portions. The apparatus comprises a ball seat insert retainer, with the first end be... | 01/04/1994 |
| 5193573 | Ball valve having replaceable seals under full service pressure A housing having an inlet and outlet and seal ring sealably positioned in each of the inlet and outlet and movable longitudinally. A ball valve element positioned in the housing between the seal rings and having a tubular member rotatable on trunnions. A ... | 03/16/1993 |
| 4968004 | Shutoff and control valve A valve in which the movable valve member, e.g. a ball or slider, has at st one valve seat braced thereagainst and is composed of an engineering ceramic which differs from the engineering ceramic of the valve seat with the two ceramics being paired to re... | 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 |
| 4953587 | Ball valves for pipelines A ball valve is provided in which an outer housing (1) can be left in a pipeline during servicing and a sub-assembly can be removed as a unit from the top of the outer housing (1). The sub-assembly comprises an inner housing (8) in which a ball member 17 ... | 09/04/1990 |
| 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 |
| 4739792 | Valve A valve consists of a housing provided with a closing opening, a closing member shaped as a part of a ball face, fitted turnably in the housing and resiliently connected to a pivot shaft, and of an annular sealing face. The closing member is connected to ... | 04/26/1988 |
| 4708158 | Ball-type stop cocks having standard matching flanges This invention relates to a flange-type stop cock having a ball valve plug. This ball-valve stop cock is so constructed as to have the same profile or outline as the flange portion of the existing flange-type stop cock having a conical-shaped valve plug. ... | 11/24/1987 |
| 4546790 | Fluid valve The fluid valve comprises an integral housing made of forged steel, the housing having tubular end portions as fluid inlet and outlet, respectively, conical transition zones having a cone angle of at least 30°, and a central enlargement joined by said tr... | 10/15/1985 |
| 4523608 | Rotary ball valve assembly A rotary ball valve assembly including an elongate valve body, a first passage having a transverse pin and an elongate key of a rotatable actuator extending therein, a lower valve seat, and a ball member resting on the lower valve seat. A pair of slots ar... | 06/18/1985 |
| 4519412 | Valve and seal therefor An ball valve having a body with an open valve chamber therein, passages into the valve chamber, an opening through the top of the body, a boss having an internal recess opposite and aligned with said opening, a closure releasably secured to said body and... | 05/28/1985 |
| 4460012 | Cartridge-type valve A valve for controlling the flow of fluids, improved by utilizing a cartridge, containing a valve head and a valve seat, which is placed in a box-type valve body. The cartridge enables rapid exchange of the valve head and valve seat. Thus, the improved va... | 07/17/1984 |
| 4327895 | Ball valve A ball valve having an externally threaded seal carrier, a ball, a seal disposed between the carrier and ball, a tubular valve body internally threaded to engage the external threads of the seal carrier and hold it in the body, an axial clearance between ... | 05/04/1982 |
| 4226260 | Single lever faucet plastic cartridge valve A single lever faucet mixing valve comprises a unitary cartridge which may be installed in a faucet housing for original installation and removed and replaced when worn out. The cartridge is formed of a plurality of molded plastic parts which are adapted ... | 10/07/1980 |
| 4175580 | Bottom entry positive acting ball valve A valve assembly having a housing which includes a central, substantially cylindrical body part and a pair of end connector parts is provided in which the body part defines a through-flow fluid passageway, the end connector parts define upstream and downs... | 11/27/1979 |
| 4164343 | Eccentric ball type valve A ball type valve for high pressure lines is designed so that the spherical valve member is offset from the centerline of the valve stem in such a manner that the spherical valve member in the open position has a cylindrical fluid passage in parallel alig... | 08/14/1979 |
| 4135545 | Ball valve seat assembly having a swaged seat ring to retain the face seal A ball valve seat assembly includes a seat ring for mounting in a ball valve seat pocket and an annular face seal mounts on one end of the seat ring. The resilient annular face seal member is mounted in a groove in the seat member with one end portion exp... | 01/23/1979 |
| 4089345 | Discharge valve A discharge valve for controlling the discharge flow of water from the delivery end of a fire pump including a valve body having an integral extension portion forming an inlet waterway for delivering water from the delivery end of the fire pump to the val... | 05/16/1978 |
| 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 |
| 3937441 | Rotary valve A rotary valve having a segmental sphere type rotary plug cooperating with sealing means and featuring a slide-in cage arrangement for ease of machining and assembly, and wherein said rotary plug is locked into said cage type insert by means of cylindrica... | 02/10/1976 |
