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| Number | Title | Issue Date |
| 8403371 | Sprinkler unwinding piping First and second ridge portions at the foremost end of a flexible pipe are pressed into first and second enlarged-diameter ridge portions, respectively, each having an external diameter larger than the internal diameter of a rotary nipple and smaller than the front-... | 03/26/2013 |
| 8038181 | Connecting arrangement for a fluid-conducting tube A connecting arrangement for fluid-conducting tubes (1, 2) has a further fluid transporting component (16). The fluid-conducting tube (1, 2) has at least one collar (3, 4) facing radially outwardly which can be clamped against the further... | 10/18/2011 |
| 8033580 | Working fluid feeding device A device (30) for feeding working fluid to an assembly (14) requiring working fluid includes at least one fluid channel (20, 20a-20d) extending from a surface (16a) and at least one screw element (22, 24... | 10/11/2011 |
| 7980602 | Fitting to connect a polyvinyl chloride pipe and a polyethylene pipe A pipe fitting facilitates joining of a high-density polyethylene (HDPE) pipe to a polyvinyl chloride (PVC) pipe. The fitting has a HDPE body. A ring-shaped PVC insert is positioned within an inner surface of the body at one opening of the body. An inner surface of ... | 07/19/2011 |
| 7766395 | Working fluid feeding device A device (30) for feeding working fluid to an assembly (14) requiring working fluid includes at least one fluid channel (20, 20a-20d) extending from a surface (16a) and at least one screw element (22, 24... | 08/03/2010 |
| 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 mechanically connecting the coupling body to the pipe. An axisymmetrical main... | 08/18/2009 |
| 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, i.e., flexible, tube. The seal portion sealingly engages the inner di... | 04/14/2009 |
| 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 conduit into the coupling body. At least one seal is formed on the ins... | 03/17/2009 |
| 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 center of the heat pipe. A method for manufacturing the sealing structu... | 02/24/2009 |
| 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 first and second pieces. The length is fixed by securing the relative ... | 11/04/2008 |
| 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 is located at a second side of the connector. ... | 09/16/2008 |
| 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 flange coupling having a flange formed with an attaching bolt hole and a... | 08/26/2008 |
| 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 portion is a deformed portion that is deformed inwardly of the stepped... | 04/29/2008 |
| 7360800 | Compression clamp A one-piece unitary compression clamp for securing a pipe or tube on a fitting. The clamp may include at least one inward deformation that provides an interference fit between the clamp and the pipe or tube. Consequently, the clamp cannot fall off the pipe or tube b... | 04/22/2008 |
| 7357188 | Mono-diameter wellbore casing A mono-diameter wellbore casing is formed by radially expanding a first tubular liner off of a mandrel into contact with a second tubular liner. The first and second tubular liners are positioned within the wellbore in an overlapping relationship. The overlapping po... | 04/15/2008 |
| 7347224 | Supply and exhaust pipe In order to provide a supply and exhaust pipe comprising a drop-off prevention mechanism, particularly effective for pipes with a large diameter, to increase bending strength and sealing efficiency, formation of a hemmed section A at an top edge of an insert portion... | 03/25/2008 |
| 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 passage into which the end portion is inserted, a recess formed in an o... | 03/18/2008 |
| 7341287 | Deformable mechanical pipe coupling A deformable mechanical pipe coupling is disclosed. The coupling is formed from an arcuate band that surrounds and defines a central space. The band has first and second ends in facing relation. arcuate surfaces that engage outer surfaces of the pipe elements extend... | 03/11/2008 |
| 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 pressure burst ratings up to 12,500 psi and internal diameters up to 3... | 03/04/2008 |
| 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 connector sleeve includes a first end, a second end, and a passageway ext... | 02/19/2008 |
| 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, which receives an exposed end of the corrugated pipe 6 of t... | 02/12/2008 |
| 7328493 | Self restrained fitting for PVC and ductile iron pipe A combination sealing and restraint system for an as-cast ductile iron fitting is shown for both sealing and preventing separation of an iron pipe fitting and a mating male pipe. The restraint system includes both a sealing ring and a combination gripping ring which... | 02/12/2008 |
| 7316426 | Method and apparatus for coupling a conduit to a fitting A method for coupling a conduit to a fitting. The method includes providing a fitting having a body and a passageway extending through the fitting body, inserting at least a portion of the fitting body within at least a portion of a collar, and compressing at least ... | 01/08/2008 |
| 7272204 | Method and apparatus for clamping a riser brace assembly in nuclear reactor An apparatus and method are provided which are designed to structurally replace welds that attach a riser brace assembly to a jet pump riser pipe. The riser brace assembly may include an upper clamp assembly, a lower clamp assembly, and a plurality of mechanical fas... | 09/18/2007 |
| 7255176 | Method for reducing diameter reduction near ends of expanded tubulars A variety of approaches to reducing or eliminating “end effect” or the tendency of tubular ends to reduce in diameter after expansion are disclosed. Some involve pre-bending the ends outwardly while others involve removing material internally or/and externally n... | 08/14/2007 |
| 7252310 | Pipe coupling with tongue and groove sealing sleeve A coupler for use in joining two pipes in a butt joint. The coupler includes a band clamp and a split sealing sleeve disposed inside the band clamp for encircling the abutted ends of the pipes. The split sealing sleeve has a tongue-and-groove sealing joint at the co... | 08/07/2007 |
| 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 outside pipe end includes a sealing zone having a collapsible sealing sl... | 07/24/2007 |
| 7237809 | Coiled tubing connector A tubing connector comprising a rigid member having a first end and a second end; a crimping groove disposed about the rigid member; and a sleeve fixably attached to the rigid member and covering the crimping groove. A method for connecting a tubing section to a rig... | 07/03/2007 |
| 7229104 | Shrinkage-free sealing structure of heat pipe A shrinkage-free sealing structure of a heat pipe. The sealing structure is in the form of a double-layered structure formed by transversely pressing a first side of an open end of the heat pipe towards a second side of the open end and transversely pressing the sec... | 06/12/2007 |
| 7229103 | Heat exchanger tank-pipe connection structure A short cylindrical connection cup is fitted and brazed to a pipe fitting port of a metallic tank. Afterward, the extremity of a resin pipe is inserted via an O-ring into the connection cup, and a caulking claw of the connection cup is caulked to press a flanged por... | 06/12/2007 |
| 7213576 | High pressure fuel injection tube and method of forming the same A high pressure fuel injection tube includes a connection head with a seat face in a spherical shape. A ring-like flange is spaced from the seat face in an axial direction. A conical portion is formed in the interval between the ring-like flange and the seat face. A... | 05/08/2007 |
| 7207607 | Coaxial two-component cartridge The invention relates to a coaxial two-component cartridge, with an outer tube and a separate inner tube, both of which tape at one respective end into a respective neck, wherein the inner side of the neck of the outer tube and the outer side of the neck of the inne... | 04/24/2007 |
| 7192064 | Extrusion-sealed structure of heat pipe An extrusion sealed structure of a heat pipe. A heat pipe that has been extrusion-sealed includes a circular tubular body with two free ends connected to conical shrunk tubular portions. One end of each shrunk tubular portions is connected to the circular tubular bo... | 03/20/2007 |
| 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 |
| 7125052 | Crimped gas riser with jacket assembly A riser assembly is provided for transmitting gas from a buried line to a meter manifold. The riser assembly includes an adapter having a mounting structure at one end for connection to a manifold and having an opening at an opposite end. An inner casing has a first... | 10/24/2006 |
| 7111688 | Clamping well casings A clamp for clamping two concentric tubes, typically two concentric tubes in an oil or gas well. The clamp has two axially movable tapered components which can be pulled over one another in an axial direction to provide a contraction of internal diameter which grips... | 09/26/2006 |
| 7086479 | Expanding well tools Methods of expanding well tools, which permit operation of the well tools after expansion, are provided. In a described example, a cementing tool includes a valve and a packer. After the cementing tool is expanded, the valve is selectively opened and closed, and the... | 08/08/2006 |
| 7086669 | Method and apparatus for sealing radially expanded joints Connectors and connections that enhance mechanical and sealing engagement between the ends of tubular bodies that are radially expanded by a forging tool. The connectors are designed to maintain or restore mechanical and sealing engagement following expansion. The c... | 08/08/2006 |
| 7080860 | Fastening structure for end of hose with corrugated metal tube In a hose with a corrugated metal tube, an axial leading end portion of the corrugated metal tube is configured as an extending portion so as to extend in an axial direction beyond a base portion of a socket fitting and be exposed out of an outer layer of the hose. ... | 07/25/2006 |
| 7073257 | Shrinkage-free sealing method and structure of heat pipe A shrinkage-free sealing structure is formed at an open end of a heat pipe by pressing one side of the open end towards the other side of the open end until the side walls of the open ends contact each other. Furthermore, the recess is pressed to have a curve which ... | 07/11/2006 |
