Class 285/306 - Line pressure-responsive

Subclass of Class 285 - Pipe joints or couplings
Definition: Subject matter including catch means responsive to the line
No. of patents: 40
Last issue date: 07/22/2008

Number	Title	Issue Date
7401801	Remotely releasable coupler and hose retrieval mechanism for airbrake system A remotely releasable brake hose coupler for pressure fluid operated brake systems, such as on a motor truck and semi-trailer unit, and a retrieval mechanism for retrieving flexible hoses connected to the coupler. Pressure air from the truck tractor brake system is ...	07/22/2008
7007983	Quick connect coupling An annular gasket is stationarily mounted on one coupler, and a tubular body is mounted for axial sliding movement within another coupler. The body has an outer wall formed with a sealing surface that sealingly engages the gasket in a sealed position, and with an ou...	03/07/2006
6921111	Remotely actuated quick-release coupling A remotely actuated quick-release coupling having a male assembly and a female assembly. The female assembly has an inner sleeve and an outer sleeve, with the male assembly being removably insertable into the inner sleeve. A spring-loaded latching mechanism is locat...	07/26/2005
6908120	Tube joint A tube joint includes a body into which a tube is inserted, a guide member which is arranged in the body, a chuck which engages with the outer circumferential surface of the tube to retain the tube, fastening pawls which protrude while being inclined by predetermine...	06/21/2005
6908118	Socket for dialyzer A spring-biased holder 42 for pressing a locking ball (41) is accommodated between an outer sleeve (30) fitted onto an outer surface of a coupling part (21) of a coupler main body (20) and the outer surface of the coupling part (	06/21/2005
6588807	Quick connector for fluid handling An improved quick-disconnect connector assembly for connecting hoses, having a female element for connection to a first hose and a male element for connection to a second hose. The female element has an axial bore having a sealing mechanism for sealably r...	07/08/2003
6588806	Flat-face quick coupling A radially offset valve is mounted in a bypass passage that extends through two movable members that are jointly moved during coupling between two couplers. The valve is moved from a closed position in which the flow of a pressurized fluid through a flow ...	07/08/2003
6454309	Connector 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
6450541	Releasable connector A releasable connector connects between coiled tubing, a pipe string or similar tubular string and a tool/piece of equipment. Two sleeve-shaped inter-connectable parts are configured to be releasable, wherein one is connected to the coiled tubing, and the...	09/17/2002
6412828	Quick 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
6315330	Apparatus having hydraulic pressure loaded quick disconnect Liquid dispensing apparatus having a pressure loaded quick disconnect assembly. The apparatus includes a first liquid containing component having at least one liquid passage, a second liquid containing component including at least one liquid passage, a mo...	11/13/2001
6279961	Rotatable hose coupling A rotatable hose coupling is provided for use with a pool cleaner, particularly of the type powered by a suction or vacuum source via a flexible vacuum hose or the like connected to the suction side of conventional pool water filtration equipment, wherein...	08/28/2001
5911444	Automatic locking mechanism for air brake hose coupling members An air pressure actuated stop assembly (50) is disposed in at least one of first and second rotatably engaging housings of a coupling assembly (10), the housings (14) being affixed to ends of respective associated hoses 70) to complete an air passageway (...	06/15/1999
5346177	High pressure gas line breakaway connector An automatic tension-activated in-line connector for a pressurized hose is provided with pressure compensation means by which the necessary tension to effect decoupling is rendered less responsive to resistance created by high line pressures....	09/13/1994
5323812	Pressure-locked coupling A pressure-locked coupling including a coupler and nipple, said coupler having a locking means which locks the nipple to said coupler in response to pressure applied to said coupler. A locking sleeve is employed having various locking diametrical surfaces...	06/28/1994
5251668	Coupling suitable for use in refueling lines or the like A coupling which can be used in fueling lines (L1, L2) or the like, the coupling having a closure device which blocks the flow path of the fluid and are brought automatically into closed position as a function of a sensor-recorded displacement of the feed...	10/12/1993
5170847	Hydraulic release oil tool A hydraulic setting and release tool has a shear out setting assembly attached to a string coupling member. Upon reaching a predetermined hydraulic pressure, a piston of the tool shears restraining shear pins and moves in a body of the tool to release dog...	12/15/1992
4880257	Pressure 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
4774983	Safety device for gas welding A safety device for gas welding is provided between a gas supply source and a burner torch to prevent counter-flow and back-fire from the burner torch in the direction of the gas supply source, and further, to positively cut off the flow path, so that exp...	10/04/1988
4682795	Tension 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
4678210	Loading and locking mechanism The loading and locking mechanism includes a first cylindrical member with means defining a circumferential groove therein having a first surface of revolution disposed at an angle with the axis of the first cylindrical member. Cooperating with the first ...	07/07/1987
4667986	Wellhead connector A connector useful in releasably connecting well servicing equipment to wellheads. A male connector member houses resilient seals sealingly engageable in the female member on connection. The female connector member houses radially moveable dogs which may ...	05/26/1987
4652016	High pressure pipe union designed to disengage automatically under severe pulling stress The union is made up of two parts normally locked together by at least one radial screw with sized cross section. Under severe pulling stress applied to the union from the outside the locking screw breaks and frees the two parts of the union, which separa...	03/24/1987
4615545	Connect-disconnect coupling for a plural-passage fluid line A connect-disconnect coupling for a plural-passage fluid line has an outer socket which has an inner plug mounted therein; and an outer plug has an inner socket mounted in it. That inner plug includes a yieldable tube which has one end thereof in fluid-ti...	10/07/1986
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
4601608	Subsea hydraulic connection method and apparatus A hydraulic connection apparatus for use by divers or an underwater vehicle is disclosed which allows pressurized hydraulic fluid to be supplied to hydraulically-actuated devices carried upon subsea equipment. A pressurized fluid source carried by the und...	07/22/1986
4592387	Power-assisted coupling A manually operated, power-assisted, self-sealing fluid coupling which utilizes pressurized fluid to interconnect the coupling parts. A sleeve within one part selectively locks to the other part and utilizes an expansible chamber motor to draw the other p...	06/03/1986
4591192	Quick connect coupling An improved quick connect coupling is provided for releasably connecting a pair of conduits, such as ordinary garden hose. The coupling comprises interlocking male and female fittings adapted for respective connection to a pair of hoses, wherein the male ...	05/27/1986
4543995	Pipe coupling having line pressure actuated threaded segments The coupling is provided with a cylinder (15, 49) within which a piston can be moved under pressure in one direction or the other. The piston has attached to it a clamping device in the form of jaws (32) which are adapted to be pressed together radially i...	10/01/1985
4540201	Tube connector This invention relates to a quick connect type of tube connector which engages the outside diameter of the tube with a self-locking capability and which increases its gripping action on the tube by fluid pressure developed behind a piston in a chamber hou...	09/10/1985
4465132	Releasable well tool stopping devices and systems A tool stopping device for use in a well flow conductor having a preferably full open bore and an abrupt stop shoulder surrounding the bore and engageable by corresponding stop shoulders of spring biased keys carried on a well tool for stopping the well t...	08/14/1984
4443028	Quick coupling assembly A three component coupling assembly consisting essentially of plastic male and female coupling members and an annular seal. The female member has a male fitting engaging end portion formed with interior threads for cooperatively threadedly engaging a thre...	04/17/1984
4371004	Automatic coupling device to connect tractor and tractor-drawn means hydraulic systems An automatic coupling device to connect a hydraulic system tractor and a tractor-drawn device hydraulic system comprises a panel secured on the tractor-drawn device and a body mounted on the tractor. The panel accommodates receiving unions with shut-off v...	02/01/1983
4275786	Apparatus for selectively coupling cables to well tools In the several representative embodiments of selectively-operable well bore apparatus disclosed herein for dependently coupling a well tool to a suspension cable, a collapsible assembly of two or more retaining members is arranged within an enclosed chamb...	06/30/1981
4222590	Equally tensioned coupling apparatus The present invention discloses method and apparatus for connecting together two members having mating surfaces by means of a plurality of fasteners such that equal compression forces are exerted on the members along force lines normal to a common plane. ...	09/16/1980
4190107	Well bore apparatus with hydraulically releasable tubing seal unit Well bore apparatus is installed in a well casing on a tubular string having a packer anchored in and forming a seal within the casing. In the tubing string above the packer is a safety valve structure held open by the pressure of fluid supplied through c...	02/26/1980
4129324	Tube coupling The fluid coupling apparatus is disclosed which is adapted for connecting and disconnecting a first and a second fluid carrying member. Male and female coupling members are connected to the first and second fluid carrying members respectively. The female ...	12/12/1978
4087119	Fluid pressure operated duct coupling A device for connecting successive duct sections, especially between a sea-bed petroleum storage tank and a surface platform, comprising a flexible tubular joint secured at both ends to two cylindrical coupling units slidably mounted respectively within t...	05/02/1978
4084843	Quick-acting hose or pipe coupling A coupling for connecting a supply conduit to a rigid or flexible extension tube, designed to carry a fluid under pressure, comprises a cylindrical housing having one end wall fastened to the conduit and another end wall formed with an opening for the ins...	04/18/1978
4056145	Hydraulic holddown for well packer stinger Hydraulic locking means is provided in a dual stinger latching mechanism which hydraulic locking means secures tubular conduit within the packer latching mechanism against pressure below the packer tending to pump the conduit out. The hydraulic locking me...	11/01/1977

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Class 285/306 - Line pressure-responsive