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Class 285/900 - BALANCED PRESSURE


Subclass of Class 285 - Pipe joints or couplings
Definition: Art collection drawn to balanced pressure.
No. of patents: 63
Last issue date: 08/26/2003


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NumberTitleIssue Date
6609731Connector
A connector for connecting the lower tubular member of a tie-back to the upper tubular member of a subsea wellhead is disclosed as having a first sleeve carried about the upper member for axial reciprocation with respect thereto and extension over the low...
08/26/2003
6588804Method and apparatus for monitoring pipeline expansion joint conditions
A method and apparatus for monitoring a pipeline expansion joint, in particular the conditions of a pressure-balanced expansion joint. A sensor is positioned so as to sense one or more physical characteristics of a pipeline fluid flow. A signal generated ...
07/08/2003
6554324Apparatus and method for connecting tubular members
A connector for connecting a first tubular member to a second tubular member is disclosed, for example for connecting a riser to a wellhead in a subsea oilfield location. The second tubular member has a seating surface and comprises an engagable locking p...
04/29/2003
6454309Connector adapter, especially for quick test connectors
A connector adapter includes an embracing holder and a connector piston. The connector piston sleeve is axially movable relative to the embracing holder by an actuating device and bears against a mating connector in sealed manner in a connected position. ...
09/24/2002
6450546High pressure product swivel
A production swivel with passive control of dynamic seal gap width using internal swivel pressure. The swivel includes inner and outer housings with a middle housing which transfers, component deformation due to fluid pressure from the dynamic sealing int...
09/17/2002
6425443Pressure compensated disconnect system and method
A disconnect for facilitating release of a tool at a downhole, wellbore location. The disconnect utilizes an upper portion and a lower portion connected at least in part by a shear member. The disconnect uses a plurality of pressure areas to selectively e...
07/30/2002
6412823Rotating connector with compensating unit
A rotating connector for the transfer of at least one pressurized process fluid, and comprising a central stem (2) on which there is placed a number of ring elements (3, 4) comprising at least one annulus element (3) for fluid transfer between an associat...
07/02/2002
6412828Quick safety connection for removably joining pipes
A quick safety connection for the removable joining of pipes, comprising a male connector and a female element adapted to fit and to be locked inside one another. A controlled locking mechanism is adapted to immobilized the male connector axially in a pos...
07/02/2002
6382682Extendable pipe joint
The present invention provides an extendable pipe joint wherein the cylindrical pipe joint comprises first and second external cylinders disconnectably connected to each other; a first pressure-balancing cylinder is set in the first external cylinder; a s...
05/07/2002
6145890Device for supplying a pressurized medium
In a device (1) for supplying a pressurized medium from a fixed component (2) into a rotating component (3, 3'), with an axially aligned annular groove (14) and radially aligned sealing gaps (15, 16) provided between the two components, a circumferential ...
11/14/2000
6123103Pressure balanced coupling with split body
A pressure balanced hydraulic coupling for use in undersea drilling and production operations is shown. The coupling has radial passages connecting between the male and female members such that fluid pressure is not exerted against the face of either memb...
09/26/2000
6007105Swivel seal assembly
A swivel seal assembly is defined for providing sealed high pressure fluid communication between relatively rotatable generally coaxial conduits where dynamic runout and static misalignment may occur to one conduit relative to the other. A generally tubul...
12/28/1999
5992893Connector
There are disclosed two embodiments of a connector for sealably connecting the lower ends of an upper riser member and an upper conduit on the lower ends of an upper riser pipe and upper auxiliary line joint, respectively, to the upper ends of a lower ris...
11/30/1999
5702130Fluid flow connector
An evaporative cooling system externally mounted around an air cooled condenser to increase the rate of heat transfer. Spray cooling takes place in stages around succeeding portions of the condenser as determined by thermostats which respond to increasing...
12/30/1997
5697651Flexible duct joint having a low leakage, pressure-balanced bellows seal
Disclosed is a flexible joint for sealing two conduits. One half of the joint includes an annular seal gland with an outer surface defining a static seal face. The other half of the joint includes an inner race member having inner and outer bearing surfac...
12/16/1997
5582432Device for transferring a medium
A device for transferring a medium to a servo device has a first component and a second component positioned in the first component so as to be rotatable about an axis of rotation. The first component is displaceable to a limited extent relative to the se...
12/10/1996
5203374Pressure balanced hydraulic coupling with metal seals
A pressure-balanced hydraulic coupling for use in undersea drilling and production operations, the coupling having radial passageways communicating between the male and female members such that substantial fluid pressure is not exerted against the face of...
04/20/1993
5133578Flexible joint with non-diffusive barrier
A flexible joint 13 is employed to sealingly connect a pair of tubular members 16, 18 while still permitting limited articulated movement therebetween. The flexible joint 13 includes a housing 26 with upper and lower ring-like plates 32, 34 coaxially arra...
07/28/1992
5123447Quick disconnect coupling
A quick disconnect coupling for connecting together two conduits in a high pressure fluid-carrying system. The coupling includes a female part (coupler) and a male part (nipple) each provided with a flow through channel, and each provided with a cut-off v...
06/23/1992
5099882Pressure balanced hydraulic coupling with metal seals
A pressure-balanced hydraulic coupling for use in undersea drilling and production operations, the coupling having radial passageways communicating between the male and female members such that substantial fluid pressure is not exerted against the face of...
03/31/1992
5069488Method and a device for movement-compensation in riser pipes
A method for movement-compensating a riser pipe (6) running between a mobile offshore structure (7, 8) and a wellhead (2) on the sea-bed (1), employs a sliding joint (13, 15) in the form of a telescopic device (9) which is volume and pressure balanced. Th...
12/03/1991
5052720Swivel joint for high pressure fluid
A swivel joint for high pressure fluid capable of preventing the leakage of the high pressure fluid and smoothing the rotation of the rotating one of the shaft member and the receiving member, with a simple and compact structure, which can be manufactured...
10/01/1991
5011195Constant volume connector
A connector for conveying hydraulic pressure from a relatively fixed source to a relatively moveable hydraulically actuable arrangement is described. The connector comprises a telescoping assembly of hollow members opposite ends of which have means for jo...
04/30/1991
4971367Air controlled rotary joint compensator
The invention pertains to the method and apparatus of compensating for the axial bearing load forces imposed upon rotary joints conveying a pressurized fluid medium, such as steam, by imposing an axial force on the rotary joint housing proportional to the...
11/20/1990
4911483Resilient ball joint support
A resilient ball joint support including two plates movable with respect to each other and connected together by at least one ball joint, the transmission of a load between the plates being provided, partly through at least one cushion formed of at least ...
03/27/1990
4903941Pressure equalizing rotary joint
This invention pertains to a novel rotary joint which seeks to equalize exterior-interior pressure. This rotary joint is useful in permitting free rotary motion between two components connected by the joint in conditions where unequal pressures exist at t...
02/27/1990
4884830Quick connect coupling device
A pressure balanced coupling device for quick connection and disconnection with at least one mechanism. The device operates to maintain a sealed flow-through connection between two devices which may also contain a pressurized medium such as refrigerants. ...
12/05/1989
4880257Pressure compensation multi tubular safety joint
A pressure compensation multi tubular safety joint for use with tubular sections is disclosed wherein a weak link is included that causes the joint to separate under axial load before permanent damage is done to the tubular sections but which compensates ...
11/14/1989
4856827Resilient ball joint support
A resilient ball joint support is provided including two plates movable with respect to each other and connected together by at least one ball joint, the transmission of a load between said plates being provided, partly through at least one cushion formed...
08/15/1989
4846509Flexible joint means
In a flexible joint having a through-bore for the flow of fluid and comprising a pair of annular rigid members relatively rotatable about the longitudinal axis of the flexible joint, an annular elastomeric bearing is interposed between the relatively rota...
07/11/1989
4827977Breakaway hose coupling
A breakaway hose coupling for application within a fuel line, that prevents untimely decoupling, and avoids unnecessary leakage. The coupling includes a pair of fittings, for connecting to the fuel line, a sleeve provided for limited sliding movement upon...
05/09/1989
4826214Pipeline safety joint
A pipeline safety joint to provide a controlled point of weakness in at least one pipeline, said safety joint comprising a pair of tubular mandrels sized to be securable to a pipe-end of a pipeline, a portion of one mandrel being insertable into a part of...
05/02/1989
4758026Rotary joint with balanced seals
A rotary joint for establishing communication of a pressurized medium with a rotating heat exchanger drum wherein the joint seals and associated structure are of such configuration to permit internal balancing with respect to fluid pressures imposed there...
07/19/1988
4754780Pressure balanced hydraulic coupling
A pressure-balanced hydraulic coupling for use in undersea drilling and production operations, the coupling having radial passageways communicating between the male and female members such that substantial fluid pressure is not exerted against the face of...
07/05/1988
4691941Tension actuated uncoupler
A tension actuated fuel (e.g. gasoline) delivery hose uncoupler is disclosed in which, upon a predetermined tension load being applied to the delivery pump hose, the coupling will automatically uncouple thus releasing one end of the hose which, for exampl...
09/08/1987
4688827Pipeline safety joint
A pipeline safety joint to provide a controlled weakness in a pipeline in which a pair of tubular mandrels are connectable to first and second pipe-ends. A portion of the first mandrel of a pair is insertable in a part of the other and a latch mechanism i...
08/25/1987
4682795Tension actuated uncoupler
A tension actuated fuel (e.g. gasoline) delivery hose uncoupler is disclosed in which, upon a predetermined tension load being applied to the delivery pump hose, the coupling will automatically uncouple thus releasing one end of the hose which, for exampl...
07/28/1987
4669758High pressure, multiple passage swivel
A multi passage swivel assembly provides fluid or gas flow while continuous or intermittent rotation occurs between a fixed inlet port and a rotating outlet port. The assembly contains a clearance control ring that compensates for dimensional change to al...
06/02/1987
4615542Telescopic riser joint
This invention relates to a joint for risers, and particularly to a telescopic joint suitable for expandably connecting composite-pipe type riser pipes provided internally with tubing pipes. Its structural features reside in that connectors adapted to con...
10/07/1986
4613159Pressure-assisted dynamic seal apparatus
A pressure-assisted dynamic seal mechanism for sealing two relatively movable members within a tubing string in a well includes a primary seal member having a first cross-sectional area positioned for sealing engagement between the two relatively movable ...
09/23/1986
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