Class 285/382.1 - Both members

Subclass of Class 285 - Pipe joints or couplings
Definition: Subject matter wherein both members forming the joint are
No. of patents: 28
Last issue date: 06/03/2008

Number	Title	Issue Date
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 sealing a connection between expandable tubulars in the form of section...	06/03/2008
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 the coiled tubing. This provides for quick disconnect and reuse of th...	03/04/2008
7152674	Disconnect devices A disconnect device for use as part of a tubing string downhole in an oil or gas well and which comprises a tubular body, at least one slip held within the tubular body, and a sleeve housed within the tubular body to hold the at least one slip in coupling engagement...	12/26/2006
7140648	Flexible connectors and methods of manufacturing same A flexible connector comprises a length of corrugated tubing having a distal end and an end piece having a proximal end. The proximal end of the end piece is engaged with the distal end of the length of corrugated tubing and a length of polymeric tubing is utilized ...	11/28/2006
7062834	Process of forming two beads A process for forming a metallic tubular connector of the type having a cylindrical shell which extends circumferentially about a tubular body for joining said tubular connector to a conduit. The process involves using a first forming machine to form a first periphe...	06/20/2006
6910618	Method for preparing pipe for butt welding A steel pipe is welded to a threaded connector that has an end with a desired nominal inner diameter. A swage is forced over an end of the pipe, reducing an outer diameter and an initial inner diameter of the end of the pipe. A die is then forced into the end of the...	06/28/2005
6692040	Lokring fitting having improved anti-torsion capability A fitting for a fluid pressure conduit. The fitting includes a coupling body having a substantially axisymmetrical inside surface for engaging an outside surface of the fluid pressure conduit. The inside surface has at least one substantially axisymmetric...	02/17/2004
6619702	Structure of a connection portion of an exhaust pipe for an engine and a method for providing the same An extension portion extending outwardly is integrally formed on the edge of an end portion of an exhaust pipe; a collar is fixed on the outer periphery of the end portion of the exhaust pipe by caulking; and the edge of the outer end of the collar is abu...	09/16/2003
6585296	Tube sealing assembly A high pressure be seating assembly adapted for liquid sealing against a rigid surface having a connecting conduit. The tube sealing assembly includes a rigid, elongated, tube member having a spherical sector-shaped distal end portion with a radius substa...	07/01/2003
6481764	Pipe coupling method and apparatus A method of connecting two malleable pipes comprising locating the pipes, one inside a portion of the other with O-rings between the pipes, and applying a crimping tool to inwardly deform the pipes and thereby cause the O-rings to deform and establish a f...	11/19/2002
6474701	Tubing connector A tubing connector non-releasably connected to a tube of tubing string for use downhole in oil and gas well operations, the connector comprising connector body (1) with an end portion fitted concentrically within or over a corresponding end of the tube (2...	11/05/2002
6409175	Expandable joint connector Methods and apparatus are provided for obtaining a secure mechanical connection and a pressure-tight seal in the overlapping area of two telescoping tubular bodies. The two bodies, including the overlapping area, are radially expanded to increase the insi...	06/25/2002
6131964	SAS fitting for tube and pipe connections The present invention provides an apparatus for making a tube connection. The apparatus comprises a sleeve having an interior surface adapted for receiving a tube section therein. The sleeve further has an exterior surface having a locking mechanism dispo...	10/17/2000
5957506	Sheet-metal insulated register box with adjustable elbow fitting A sheet-metal elbow is coupled by direct attachment to a flat sheet-metal air inlet panel of an air distribution boot or register box by roll-formed flange portions that are mated in interlocking, overlapping engagement with each other. The air inlet pane...	09/28/1999
5927763	Pipe connections and methods for connecting pipes A method for connecting a first end of a cylindrical pipe of given external diameter within a bore of a pipe element having a terminal portion with an internal diameter sufficient to receive the first end, includes outwardly deforming a part of a wall of ...	07/27/1999
5833280	Mechanical joint A mechanical joint tube assembly and method of creating the same is disclosed for providing an improved fluid fitting assembly. A fitting having a primary tapered bore is forced onto a tube that has a larger diameter. The tube is radially contracted in ce...	11/10/1998
5575409	Static mixer nozzle configuration that removably receives a locking hub thereon A nozzle configuration for a static mixer having a retaining shoulder with a square cross-section, an inclined front face and a flat retaining face that is normal to the longitudinal axis of the nozzle. An undercut having a octagonal cross-section is prov...	11/19/1996
5442846	Procedure and apparatus for cold joining of metallic pipes Joinder of two adjacent segments of steel pipe having an outer diameter of at least 12 inches, by a bridging sleeve, the sleeve being joined to both pipe segments by magnetic forming. Apparatus enabling the process includes a segmented ring-shaped coil br...	08/22/1995
5378074	Tubular connection There is disclosed a novel crimp connection for directly joining metal tubes together. The crimp connection includes at least one circumferential crimp for locking or fixing the tube end portions together, which locking crimp will have varying lateral and...	01/03/1995
5152556	High temperature tubing joint with threaded, split collar A connector system for joining a male tube to a female tube comprises an axially-split nut which extends across the region being joined. The female tube is externally threaded and mates with internal threads on one end of the axially-split nut. A shoulder...	10/06/1992
5058936	Method of forming a mechanical A technique for making a connection to an object, for example a tube, comprises positioning a shape memory alloy collar around the tube, the collar having two circumferentially extending teeth formed in its internal surface. One of the teeth is caused to ...	10/22/1991
4850096	Method of joining pipes A method of joining first and second piping materials with a C ring. The C ring has a sharp annular rim along the internal peripheral surface thereof on the pipe end side, and the C ring also has a cross-section such that a first cornered edge formed alon...	07/25/1989
4786086	Fuel cell stack electrically insulated fluid connector An electrically insulated joint is provided between two fluid conduits, one of which is connected to a fuel cell stack, and the other of which is connected to a source of the fluid being circulated through the stack. The two conduits are both preferably f...	11/22/1988
4645247	Mechanical pipe joint Mechanical pipe joints and methods of forming same, wherein pipe ends are first prestrained into expanded bell and expanded pin shapes and then again strained by interference joining, both prestraining and subsequent straining being under controlled condi...	02/24/1987
4627146	Method of producing pipe joints Mechanical pipe joints and methods of forming same, wherein pipe ends are first prestrained into expanded bell and expanded pin shapes and then again strained by interference joining, both prestraining and subsequent straining being under controlled condi...	12/09/1986
4585059	Heat transfer tube assembly A heat transfer tube assembly comprising a pair of fluid circulation tubes disposed co-axially one within the other, the inner tube being held substantially concentric within the outer tube by a plurality of pairs of diametrally opposed depressions or dim...	04/29/1986
4547942	Method for producing a muffler A method of rigidly connecting a plate and a tube such as those of a muffler associated with an internal combustion engine. The plate is formed with an eyelet by burring or like technique and, then, the tube is inserted into the eyelet as far as a predete...	10/22/1985
4396213	Method of joining pipe ends and joint formed thereby A soldered pipe joint and a method for making same, wherein the flow of solder from one end of the overlapped pipe ends is terminated at a set of axially aligned circumferential grooves formed in the two pipe ends....	08/02/1983

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Class 285/382.1 - Both members