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Document |
Document Title |
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7621570 |
Pre-expanded connector for expandable downhole tubulars
A method and apparatus for providing an expandable threaded connection between segments of expandable tubulars. Threaded connections are machined into pre-expanded ends of tubulars. Once the...
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7614668 |
Ferrule with plural inner diameters
A ferrule for a metal tube fitting includes a body that is case hardened over substantially its entire surface. The ferrule also has an interior wall comprising first and second cylindrical...
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7610667 |
Method of connecting expandable tubulars
A method and apparatus for providing an expandable threaded connection between segments of expandable tubulars. Threaded connections are machined into pre-expanded ends of tubulars. Once the...
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7594544 |
Downhole tubular sealing system
Disclosed herein is a downhole disconnectable and length compensatable tubular sealing system. The system includes, a seal connector having a first metal seal receptive of a separate seal nipple...
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7587924 |
Fitting and method for manufacturing a fitting
A method for manufacturing a fitting. The method steps include: providing a pipe section; pressurizing the pipe section; forming a first end of the pipe section to create a press-fit connection...
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7585002 |
Expandable tubular connection
An expandable tubular pin and box connection is described having a feature of trapping the pin nose after preferably deforming the pin nose plastically in an outward direction away from the...
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7581766 |
Reinforced tubular joint for improved sealing-tightness after plastic expansion
The invention relates to a high-performance threaded tubular joint comprising a first, male tubular element ( 11 ) and a second, female tubular element ( 12 ) made up together by screwing. One of...
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7578043 |
Coupling tubulars
An expandable coupling arrangement for coupling first and second tubulars includes a male thread portion on an end of the first tubular and a female thread portion on an end of the second tubular....
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7575257 |
Fitting with sequential sealing action
A fitting for making connections with a pipe includes a coupling body having an inside surface defining a bore for receiving a pipe. A ring is fitted over the coupling body for sealing and...
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7559582 |
Tubing connection arrangement
A tubing connection arrangement and a method used for coupling expandable tubing sections together. In one embodiment, there is disclosed a tubing connection arrangement comprising a first...
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7530604 |
Non-serviceable fluid coupling
A non-serviceable coupling includes a body with a tube receiving end bore and a hose receiving end bore. The tube includes a radial upset with a seal and spacer supported on the tube. The outer...
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7520042 |
Flexible connectors and methods of manufacturing same
An end piece for a flexible connector comprises a sleeve defining the proximal end thereof. A length of corrugated tubing is extended into the sleeve and the sleeve is crimped thereby joining the...
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7516990 |
Fluid conduit system and fittings therefor
A fluid conduit system that employs fittings having ends with a structural portion and a seal portion. The ends of the fittings are inserted into a tube, which may be a hard, i.e., rigid, or soft,...
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7506900 |
Threaded joint for pipes provided with seal
A threaded joint for pipes comprising at least one seal of the metal-metal interference type arranged externally to the female thread. The joint has an extension of the box beyond the seal which...
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7506687 |
System for radially expanding a tubular member
A system for radially expanding a tubular member.
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7503595 |
Fitting having low volume crevice
A fitting for a fluid conduit includes a coupling body having an inside surface for engaging an outside surface of a fluid conduit and a shoulder portion for limiting axial insertion of the fluid...
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7497483 |
Fitting for tube and pipe with cartridge
A fitting for a tube or pipe capable of functioning a high pressures having a first fitting component adapted to receive the conduit end; a conduit gripping device such as a ferrule or ferrules and...
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7497480 |
Hybrid quick connector
A quick connector coupling comprising a connector body having a retainer housing and a separate stem. The retainer housing defines a through bore extending axially rearward from a male member...
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7494160 |
Sealing structure of heat pipe and method for manufacturing the same
A sealing structure formed at an end of a heat pipe, includes a two-layer structure, which can be divided into two walls and a rib interconnecting the walls together, wherein the rib points to a...
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7490870 |
Hydraulic flange connection
A hydraulic flange connection having a formed tube in physical conjointness with a contoured sleeve member, the conjointness including the sleeve member having a cylindrical body bore, a...
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7490867 |
Pipe connector and a method for production thereof
The invention relates to a pipe connector for a pressure-resistant, positive-fit, high pressure screwed joint. The connection includes a formed tube; a screw body or connector branch with a cone,...
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7490866 |
Anchoring device for pipe coupling
An anchoring device for a pipe coupling including an annular channel of generally U-shaped cross-section. The channel has a web portion with flanges and projecting radially inwardly. A...
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7484772 |
End connection for pipes and a method for its manufacture
Method and arrangement for providing an end connection for pipes made from a rigid, but deformable material. An end connection includes a pipe casing ( 1 ) that protrudes into a pipe end ( 15 )....
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7478844 |
Pre-expanded connector for expandable downhole tubulars
A method and apparatus for providing an expandable threaded connection between segments of expandable tubulars. Threaded connections are machined into pre-expanded ends of tubulars. Once the...
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7475918 |
Press fitting system
A press fitting system for creating an unremovably sealed connection between smooth-ended pipes comprises at least one section that is embodied in a collar-type manner and at least one bead which...
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7469934 |
Pipe joint structure and method for fabricating the same
A pipe joint structure capable of reducing the joint height (H) and fabrication costs has a connection flange member provided with a through hole piercing the thickness of the flange member. A...
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7464969 |
Compression cap assembly
A compression cap is provided with a first connector and a fitting is provided with a second connector. The first connector locks onto the second connector to hold the cap to the fitting before the...
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7452004 |
Pipe connecting structure
A pipe connecting structure which can prevent electrical charge of a plastic coated metal pipe using a simple structure. The structure includes beads 5 a , 5 b , 5 c protruding from the outer...
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7451541 |
Method of heat shielding an inner tube
A protective sheath for a fluid-carrying tube is made from a larger tube cut into longitudinal tube segments and slice into opposed halves before being re-secured together about the fluid-carrying...
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7448652 |
Tubular metal fitting expandable in a wall opening and method of installation
A fitting is inserted into an opening in a wall. The fitting includes a ring portion where it extends through the opening. It also includes one or two end portions that extend axially outwardly...
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7445251 |
Two-piece oil filter oil cooler connector bolt
A connector bolt for securing an oil cooler to an engine block is made of first and second telescopic pieces. The bolt can be made in different lengths by adjusting the telescopic position of the...
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7437815 |
Systems adapted to cooperate with an aperture forming tool and methods
Systems and methods are provided wherein a tube insert is at least partially disposed within the end portion of a tube. An alignment fixture can be used to assist in forming an aperture through the...
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7425021 |
Pipe joint structure
A pipe is received through a through hole of a connector. A bulged portion of the pipe is press fitted into a recess of the connector located at a first side of the connector and a retaining member...
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7419193 |
Tubing connector
A method of coupling first and second expandable tubulars comprises providing a male tubular connector portion and a female tubular connection portion having greater yield strength, coupling the...
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7416225 |
Fitting for metal pipe and tubing
A tube fitting that uses only two components, namely a fitting body and a fitting nut. The nut and body are adapted to be threadably coupled together by relative rotation therebetween. The nut...
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7415765 |
Flange coupling and manufacturing method for the same
An object of the present invention is to provide a flange coupling in which the height of a horizontal portion of an L-shaped pipe is made as small as possible. The present invention provides a...
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7380840 |
Expandable threaded connection
Tubular connections and methods of designing tubular connections having selected root/crest clearance when the box member and pin member are made-up. When the tubular connection is radially...
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7380839 |
Sealing expandable tubing
Expandable tubing and methods seal a connection between expandable tubulars, and in particular, seal a connection between expandable tubulars post-expansion. In one embodiment, a method includes...
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7377556 |
Self-centering adapter
An adapter mount for attaching to a fitting tube includes an adapter tube having an outer circumferential surface; a first expandable ring placed on the outer circumferential surface of the adapter...
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7374212 |
Rain tight fitting
A compression fitting that obtains a rain tight fit on electrical conduit. The compression fitting includes a tubular body having a threaded forward end for connection to a panel and a threaded...
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7367595 |
Ferrule having convex interior wall portion
High localized loading, galling, and high torque forces have been generally eliminated or greatly reduced in a two ferrule tube fitting assembly through suitable modification of the rear ferrule so...
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7364208 |
Structure for connecting two members, method therefor, and die
A structure connects a first member and a second member. The first member has a peripheral wall portion that includes a stepped portion that is engaged with the second member. The peripheral wall...
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7344164 |
Pipe connection structure
A pipe connection structure including a pipe having a pipe body, a end portion on a end side of the pipe body, and a collar extended radially outwardly from the end portion; and a block having a...
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7338090 |
High pressure reinforced rubber hose swage or crimped coupling and method of attachment
Swage end-connector for high pressure reinforced flexible hose particularly suitable in the petrochemical and drilling industries for hoses. Two connectors are disclosed one for intermediate hose...
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7337519 |
Method for producing a coiled tubing connector assembly
A coiled tubing connector for connecting tools together when they are inserted into a well bore. The connector includes a disposable element that may be severed along with the connected portion of...
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7331613 |
Medical tubing connector assembly incorporating strain relief sleeve
A connector assembly for interconnecting separate sections of tubing, e.g., medical tubing. Connector assemblies are a two-piece construction having a connector pin and a connector sleeve. The...
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7328920 |
Flexible corrugated hose assembly and connecting process
For connecting flexible corrugated hoses, which are not provided with fittings, for transporting preferably gaseous media in connection with high-pressure applications, a holder 3 is provided,...
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7309085 |
Threaded pipe coupling
A threaded pipe coupling for connecting a pipe to a connection part with a conical exterior surface, especially for connecting copper pipes in refrigeration technology, with a sleeve-shaped union...
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7270351 |
Pipe coupling
A coupling assembly for plastic pipes including a nut, a body, a grip-ring, and a seal. The nut can engage the body through appropriate threads and includes a hooked projection having a sloping...
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7246826 |
Pipe lap joint with improved sealing slot for increased circumferential closure
A pipe lap joint for use with vehicle exhaust systems which includes an inside pipe end telescopically inserted into an outside pipe end with the pipe ends secured together by a band clamp. The...
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