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| Number | Title | Issue Date |
| 8109540 | Pipe joint and related method A pipe joint for plastic pipe includes a bell member and a spigot member. The bell member includes a tubular plastic body wall having a radially outer side including a pair of spaced apart circumferentially extending ribs and a metal reinforcement ring located betwe... | 02/07/2012 |
| 8083268 | Coupling, joint and method for fixedly and sealingly securing components to one another A fitting that can include a body and a spacing element. The body can have an insertion end that defines a cavity and which includes an end face. The spacing element can extend into the cavity from the interior surface of the cavity and can be configured to engage t... | 12/27/2011 |
| 8075025 | Probe seal having pressure-energized sealing elements for female hydraulic coupling member A crown-type probe seal for a female hydraulic coupling member has one or more pressure-energized seals for sealing between the probe seal and the body of the coupling member which retains the probe seal. The generally ring-shaped probe seal has one or more annular ... | 12/13/2011 |
| 7976075 | Probe seal having spring-energized sealing elements for female hydraulic coupling member A crown-type probe seal for a female hydraulic coupling member has one or more circumferential, spring-energized seals. One particular preferred seal comprises a closely-wound helical spring which imparts an inwardly-directed radial force to the crown seal. In certa... | 07/12/2011 |
| 7954860 | Coupling mechanism In a coupling mechanism, an inner peripheral wall of a coupling main body is inscribed with an outer side ring groove of containing an outer peripheral side edge portion of a stopper member, a stopper member introducing port formed by a width wider than a width dime... | 06/07/2011 |
| 7954859 | Probe seal having pressure-energized sealing elements for female hydraulic coupling member A crown-type probe seal for a female hydraulic coupling member has one or more pressure-energized seals for sealing between the probe seal and the body of the coupling member which retains the probe seal. The generally ring-shaped probe seal has one or more annular ... | 06/07/2011 |
| 7942456 | Fluid conduits with integral end fittings and associated methods of manufacture and use Fluid conduits for plumbing and other uses having integral end fittings are disclosed herein. A fluid conduit configured in accordance with an embodiment of the disclosure includes a tube, such as a copper tube, having an end portion adjacent to a body portion. The ... | 05/17/2011 |
| 7850212 | Segmented locking ring and corresponding assembly and mounting method This locking ring is adapted to lock a joint between two tubular elements (4, 8). It extends around a central axis (X-X) and comprises segments (50) each having a main part (58) and two circumferential ends (60). Each segment (50) ... | 12/14/2010 |
| 7823932 | Press fitting arrangement with a pre-press leak indicator sealing ring A press fitting arrangement includes a sealing ring to be housed within a bead of a press fitting into which a tube is to be inserted. There is at least one gap between the press fitting together with the sealing ring and the tube which is closed by pressing at leas... | 11/02/2010 |
| 7806445 | Spigot-and-socket joint A spigot-and-socket joint for connecting two pipes, comprising a socket end assigned to one pipe and into which a spigot end of the other pipe, which has a support strip, can be inserted and which has a radially inward-protruding edge with at least one ring segment-... | 10/05/2010 |
| 7789435 | Beveled insert for facilitating coupling pipes An annular beveled insert for enhancing the insertion of a plain end of a pipe into a mating belled end of a pipe, the insert including an annular main body portion having a substantially flat surface and a beveled opposed surface. The annular main body portion has ... | 09/07/2010 |
| 7748754 | Pipe section provided with a socket end part A pipe section provided with a socket end part for accommodating a spigot end part of a second pipe section, the spigot end part having a sealing ring and the socket end part configured with an obliquely tapered part having areas of varying dimension for deforming t... | 07/06/2010 |
| 7722093 | Fitting The invention relates to a fitting for connecting lengths of pipe by compression, having a substantially cylindrical internal contour. The fitting has a ridge which is configured in a radially outward direction and in which a sealing element is provided. The fitting... | 05/25/2010 |
| 7699360 | Water well casing A novel design for the connection of lengths of polyvinyl chloride (PVC) casing. Each length of casing has a male end and a female end. The female end has a narrowing interior diameter with its wider interior diameter at its outermost end sufficient to receive the m... | 04/20/2010 |
| 7651139 | Coupling for a fluid line arrangement The invention relates to a coupling for a fluid line arrangement, said coupling being characterised in that a plane outer side (8) of at least one essentially D-shaped sealing ring (7) of a sealing unit is applied to a plane supporting layer (10... | 01/26/2010 |
| 7641241 | Method of corrosion protection at a welded pipe joint and resulting joint A pipe joint, and a method of forming a pipe joint between two metallic pipes which have been internally and/or externally coated with a material to prevent corrosion includes a spigot and a socket. The socket has, or is formed with, an internal circumferential groo... | 01/05/2010 |
| 7575256 | Bore liner for undersea hydraulic coupling An undersea hydraulic coupling member having a bore liner that protects the coupling members from galling during assembly or disassembly. The bore liner is removable from the bore of a female undersea hydraulic coupling member. The bore liner may be integral with a ... | 08/18/2009 |
| 7562912 | Duct mating assembly The duct mating assembly includes a first duct having connected side members that define an interior air space. The side members include inner and outer surfaces. The first duct extends from a first end to a second end and the first end is offset relative to the sec... | 07/21/2009 |
| 7513536 | Pipe gasket with selective economy of scale A pipe sealing gasket is shown which is designed to be received within a groove provided within a socket end of a thermoplastic pipe in a pipe sealing system. The sealing system includes a male, spigot pipe end which is joined to a mating female belled pipe end. The... | 04/07/2009 |
| 7490869 | Coupling for an outlet conduit of a washing tank of a washing machine “Coupling for an outlet conduit (2) of a washing tank (1) of a washing machine, the coupling comprising a connection conduit (3) coupled to said outlet conduit (2), and a sealing gasket (4) between said outlet conduit (2) ... | 02/17/2009 |
| 7434847 | Quick connect tube coupling A quick-connect coupling having a tubular tube support, a sleeve and a collet. The tubular tube support includes a tube support portion and a mounting flange joined to the tube support portion. The sleeve includes an inner surface diameter greater than an outer surf... | 10/14/2008 |
| 7434850 | Fluid-tight coupling system for corrugated pipe A bell and spigot coupling system is provided for joining corrugated plastic pipe which improves the coupling's sealing capability with increasing hydrostatic pressure, and causes a substantial component of the force generated therefrom to be absorbed axially throug... | 10/14/2008 |
| 7354073 | Pipe joint A pipe joint includes a push ring having a tapered receptacle and fitted to a junction pipe; a pipe joint main body having a pipe receptacle and fitted to the junction pipe; a clamp for moving the push ring toward the joint main body; a packing ring disposed between... | 04/08/2008 |
| 7341286 | Fluid coupling with dual function retention ring A fluid coupling includes a carrier carrying a retention ring with inward and outward radially and angularly extending fingers for respectively engaging an outer surface of an endform inserted through a bore in the carrier and the inner surface of a bore in a housin... | 03/11/2008 |
| 7338093 | Connection for fluid lines The plug type connection of this invention consists of two coupling parts which can be fitted together, to be precise a socket part and a plug part, it being possible for the plug part, with a plug shank, to be inserted in a sealing manner into a locating opening of... | 03/04/2008 |
| 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 |
| 7306264 | Pipe having a water-tight in-line bell In a corrugated pipe comprising two sections joined by telescopically mating a male end of one section with a female end of the other section, an annular sealing element is fixed to the exterior surface of the male end and disposed to sealingly engage the interior s... | 12/11/2007 |
| 7284310 | Method of manufacturing a seal and restraining system A method and apparatus for restraining pipe against both internal and external forces at a pipe or fitting connection and to join and seal at least two pipes to form a pipeline is shown featuring an improved restraining and sealing mechanism. The restraining and sea... | 10/23/2007 |
| 7278662 | Hose coupling device A coupling device (1) for releasably connecting tubular elongate members (4, 5) with improved efficiency. The coupling device (1) comprises first and second end piece connectors (2, 3) which are threadably secured or otherwise attached to... | 10/09/2007 |
| 7258371 | Connection system A connection system for conduits, fittings or assemblies which are intended for carrying a fluid acted upon by a pressure (p1), in particular for systems carrying carbon dioxide. The connection system comprises a first coupling part such as a housing part... | 08/21/2007 |
| 7249789 | Water well casing A novel design for the connection of polyvinyl chloride (PVC) casing. Each length of casing has a male end and a female end. The female end has a narrowing interior diameter with its wider interior diameter at its outermost end sufficient to receive the male end of ... | 07/31/2007 |
| 7243645 | Positive fit “elastic” feed adapter for paintball gun A positive fit feed adapter for use between a paintball loader and a paintball gun. The feed adapter includes a threaded connector formed on either the paintball gun or the paintball loader. The threaded connector includes a plurality of expansion slots that allow t... | 07/17/2007 |
| 7238317 | Method of continuously producing a twin-wall pipe with a ventilation zone between a socket and an adjacent elevation A twin-wall pipe comprises an internal pipe and an external pipe. The external pipe is corrugated, having elevations and troughs. The twin-wall pipe is further provided with a socket. In a transition portion towards the twin-wall pipe and the socket, provision is ma... | 07/03/2007 |
| 7201382 | Sealing element The present disclosure relates to a sealing element for a pressed connection that includes an essentially ring-shaped body constructed of elastic material. Also included is at least one sealing edge formed on an interior side and an exterior side of the ring-shaped ... | 04/10/2007 |
| 7185894 | Watertight corrugated pipe gasket A corrugated pipe saddle gasket is provided having a leading member, a primary sealing member, and an arm member, with the gasket having a contoured surface extending along at least a portion of the bottom of the primary sealing member and the arm member correspondi... | 03/06/2007 |
| 7185924 | Joint restraint assembly A joint restraint assembly for connecting pipe ends together, or to other objects, which includes a body encircling the pipe. The body has a plurality of cavities adjacent to the pipe with a segment configured to fit into each cavity. One or more threaded bores are ... | 03/06/2007 |
| 7182372 | Beveled insert for facilitating coupling pipes An annular beveled insert for enhancing the insertion of a plain end of a pipe into a mating belled end of a pipe, the insert including an annular main body portion having a substantially flat surface and a beveled opposed surface. The annular main body portion has ... | 02/27/2007 |
| 7178837 | Piping joint structure A piping joint structure includes a first piping member, a second piping member having at least a window portion, and a joint member provided with a body unit and multiple engagement units, which protrude to the central axis side of the body unit and are capable of ... | 02/20/2007 |
| 7175204 | Method of hydroforming articles and the articles formed thereby A hydroformable frame element is formed from the combination of at least two elements. The at least two elements are designed with a partially overlapping region, with an annular space defined within the overlapping region. The annular space is filled with adhesive,... | 02/13/2007 |
| 7150478 | Integrated seal for tube to hose connection A hose connector adapted to have a polymeric hose fitted on the outer periphery of the hose connector. The hose connector comprises a metal tubing and a sealing element. The sealing element includes a ring portion and a resilient member portion attached to the ring ... | 12/19/2006 |
