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A portable partition for use in an automobile having a seat with a seat bench and a seat backrest.
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| Number | Title | Issue Date |
| 6488044 | Pressure relief apparatus A pressure relief apparatus includes a valve having a body. A shaft is rotatably disposed in the body and has an exterior end extending through the body. A plug, which may contain an internal passageway, is mounted on the shaft and is disposed in the flui... | 12/03/2002 |
| 5984269 | Rotatable valve assembly Rotatable valve assembly includes a mounting mechanism for rotatably mounting the valve in a housing, the mounting mechanism including a shaft having an outside end extending through the housing. A conversion mechanism converts fluid pressure in the housi... | 11/16/1999 |
| 5957197 | Downhole cut-off valve used for cementing A downhole cut-off valve used for cementing a casing string, comprising: an outer hollow body, having a top end connected at the lower end of the casing string, an inner hole, an inner surface and a projecting shoulder forming on the inner surface and ext... | 09/28/1999 |
| 5226448 | Freeze safety box organization A plumbing box mounted in fluid communication with fluid pipes within wall structure is arranged to provide for threaded bores for securement of the pipes thereto, with a front wall of the box or housing structure having a plug member frictionally retaine... | 07/13/1993 |
| 4651827 | Hydraulically controlled safety valves for incorporation in production tubes of hydrocarbon production wells A safety valve for use in a hydrocarbon production tube comprises a valve member which is opened by a piston tube displaceable as a result of the intake of hydraulic fluid into an operating chamber therefor, and a tubular receptacle for receiving an auxil... | 03/24/1987 |
| 4601492 | Releasable coupling A releasable coupling has opposite ends adpated to be connected into a tool string or tubing string and run downhole into a borehole. A sealing member is passed down through the tubing string and allowed to become seated within the axial passageway of the... | 07/22/1986 |
| 4534414 | Hydraulic control fluid communication nipple A hydraulic control communication nipple for switching control fluid in a fluid passageway from one location to a second location. A metal plug is aligned with a portion of the fluid passageway and is positioned to be engaged by a vertically moving sleeve... | 08/13/1985 |
| 4513764 | Valve A valve which may be run in the open position, then in response to an increase in pressure in the flowway through the valve moved to closed position, and thereafter in response to a differential between pressure within and without the housing of the valve... | 04/30/1985 |
| 4474380 | Inflatable packer assembly with control valve An inflatable packer assembly includes a cylindrical mandrel with a cylindrical valve body concentrically disposed about the mandrel. The valve body includes an inlet communicating with an interior of the mandrel and an outlet for directing fluid to an in... | 10/02/1984 |
| 4452306 | Apparatus for detecting ruptures in drill pipe above and below the drill collar An apparatus for detecting ruptures in a drill pipe above and below the drill collar comprising a nose cone, a lower body threadably engaged to the nose cone. The lower body has a structure defined by a plurality of circulation by-pass apertures and shear... | 06/05/1984 |
| 4361165 | Breakaway pipe coupling with automatically closed valves A breakaway pipeline coupling is described which comprises first and second pipe sections forming a fluid seal and designed to separate at a predetermined axial load. A plurality of piston and cylinder pressure compensating devices are arranged around the... | 11/30/1982 |
| 4311197 | Annulus pressure operated closure valve with improved reverse circulation valve A testing apparatus for use in an oil well includes an improved circulation valve having a cylindrical housing with an open bore therethrough and a circulating port through a wall thereof. A valve mandrel is slidably received in the housing and movable fr... | 01/19/1982 |
| 4292988 | Soft shock pressure plug The invention comprises a plug assembly for selectively closing and opening a flowway in a tubular conduit. The apparatus includes a seating body having a main passage and adapted to be mounted in the conduit with the main passage in register with the con... | 10/06/1981 |
| 4270610 | Annulus pressure operated closure valve with improved power mandrel A testing apparatus for use in an oil well includes an improved power mandrel and power mandrel restraining portion. The power mandrel is disposed in a cylindrical housing having an open bore therethrough and a power port and a circulating port through th... | 06/02/1981 |
| 4260164 | Inflatable packer assembly with control valve An inflatable packer assembly includes a cylindrical mandrel with a cylindrical valve body concentrically disposed about the mandrel. The valve body includes an inlet communicating with an interior of the mandrel and an outlet for directing fluid to an in... | 04/07/1981 |
| 4114694 | No-shock pressure plug apparatus Disclosed is releasable plugging apparatus for selectively closing a tubular member to permit fluid pressure buildup therein. When the fluid pressure is then decreased, a sealing device of the apparatus may be released, and the tubular member subsequently... | 09/19/1978 |
| 4008760 | Circulating valve Disclosed is a circulating valve for use in a well. The circulating valve includes at least one valve plug initially blocking flow through the valve which moves to a retained position permitting flow through the valve upon the application of a predetermin... | 02/22/1977 |
