Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 7883119 | Gland seal and corresponding assembly A composite gland sealing for the interlocking coupling of a housing end piece (8) including an anchoring groove (82), a plastic ring (14) and several locking inserts (20). Each locking insert (20) includes a radially external head... | 02/08/2011 |
| 7789431 | Pipe coupling A pipe coupling (1) includes a pipe-shaped sleeve (2) being provided with a protruding flange (4) at least in one end, said flange having a tapering end face (6). The pipe coupling further including an annular gripping ring (13) di... | 09/07/2010 |
| 7434846 | Quick coupling A quick coupling (1) comprising a sleeve-shaped coupling body (3) with a receiving opening (4) to receive one end (5) of a pipe (2), a retaining element (7) to hold the end (5) of the pipe in the coupling body (3 | 10/14/2008 |
| 7384076 | Pipe ring apparatus and method An apparatus and method according to which the apparatus includes a pair of connected arcuate members for clamping around a pipe, with each arcuate member including at least one protrusion. The arcuate members have a first material hardness and at least a portion of... | 06/10/2008 |
| 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 |
| 7341288 | Restrained sleeve pipe coupling A restrained sleeve coupling assembly for interconnecting pipe sections includes a generally cylindrical sleeve body, a generally cylindrical adaptor body and opposed end rings which are sleeved over the respective pipe sections to be joined. The generally cylindric... | 03/11/2008 |
| 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 |
| 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 |
| 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 |
| 7316429 | Pressed-connection arrangement A pressed connection arrangement including a first pipe end and a connection piece configured to receive the pipe end. The connection piece has a ring-shaped receiving device and the ring-shaped receiving device includes a cutting ring and a sealing ring. A separati... | 01/08/2008 |
| 7293758 | Pipe connector A pipe connector includes a casing, a valve block mounted in the first end of the casing and movable between a close position and an open position and normally supported in the close position by a spring inside the casing, a locking block holder mounted in the secon... | 11/13/2007 |
| 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 surface adapted to abut against and provide a force on a corresponding s... | 09/18/2007 |
| 7266875 | 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 ... | 09/11/2007 |
| 7207606 | Mechanical pipe joint, gasket, and method for restraining pipe spigots in mechanical pipe joint bell sockets A mechanical pipe joint, restraining gasket, and method for restraining pipe spigots within adjacent bell sockets. The restraining gasket is composed of two axially-separate components: a sealing portion and a restraining portion made of a plurality of arcuate locki... | 04/24/2007 |
| 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 |
| 7131671 | Transparent coupling A transparent coupling for joining the ends of relatively soft plastic conduit. Visual inspection through the coupling affords confidence that the conduits have been installed in their proper position within the coupling. Internal circumferential barbs of the coupli... | 11/07/2006 |
| 7125054 | Self restraining gasket and pipe joint A sealing and restraining gasket for preventing separation of a pipe joint used to join a bell end of a female pipe to the male end of a mating pipe. The gasket is formed from a compressible body of elastomeric material and carries a rigid ring with gripping teeth f... | 10/24/2006 |
| 7121593 | Triple-expanded mechanical pipe coupling derived from a standard fitting A coupling for joining pipe segments together is disclosed. The coupling is derived from a standard fitting and has a housing with a socket and a first expanded region adjacent to the socket, a second expanded region adjacent to the first expanded region and a third... | 10/17/2006 |
| 7111876 | Flange A split flange is provided. The split flange may be capable of being fitted firmly around the pipe having a flexible pipe body and a flared portion formed at an end portion of the pipe body. The split flange is provided with two or more arcuate flange members and tw... | 09/26/2006 |
| 7108289 | Restraining gasket for mechanical joints of pipes A gasket for connecting two lengths of pipe in a standard mechanical joint is disclosed, which gasket maximizes the advantages of both restrained push-on joints as well as mechanical joints, as are known commonly in the art. The invention has application to long-run... | 09/19/2006 |
| 7093863 | Restraining gasket for mechanical joints of pipes A gasket for connecting two lengths of pipe in a standard mechanical joint, which gasket maximizes the advantages of both restrained push-on joints as well as mechanical joints, as are known commonly in the art. The invention has application to long-run pipe lengths... | 08/22/2006 |
| 7086131 | Deformable mechanical pipe coupling A deformable mechanical pipe coupling is disclosed. The coupling has a plurality of interconnectable segments that straddle the ends of pipe elements to be joined. The segments have arcuate surfaces that engage outer surfaces of the pipe elements. The outer surfaces... | 08/08/2006 |
| 7048309 | Pipe coupling A coupling for attachment to the end portion of a pipe includes jaw members adapted to slide along an inner end taper in the coupling body so that linear movement of the jaw members toward the end of the inner end taper adjacent an end of the coupling body causes mo... | 05/23/2006 |
| 7004512 | Indented apex V-retainer coupling with cushion A pipe coupling includes a first lateral wall, a second lateral wall and an apex wall spanning and connecting the first lateral wall to the second lateral wall. The apex wall includes an outer surface and an inner surface. A gasket is disposed on the inner surface o... | 02/28/2006 |
| 6974162 | 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 surface adapted to abut against and provide a force on a corresponding s... | 12/13/2005 |
| 6974160 | Self restraining gasket and pipe joint A restraining element for preventing separation of a pipe joint used to join a bell end of a female plastic pipe to the male end of a mating pipe. The restraining element is formed from a compressible body of elastomeric material, the compressible body having a segm... | 12/13/2005 |
| 6948921 | Vacuum pump comprising an outlet A vacuum pump (1, 30) has an inlet (5) and an outlet (6). Plug-in screw fittings (9) are connected with the inlet and the outlet. The plug-in screw fittings include a bore with an internal bevel (22) that receives a flexible connec... | 09/27/2005 |
| 6945570 | Self restraining gasket and pipe joint A restraining element for preventing separation of a pipe joint used to join a bell end of a female plastic pipe to the male end of a mating pipe. The restraining element is formed from a compressible body of elastomeric material, the compressible body having a segm... | 09/20/2005 |
| 6913292 | Mechanical pipe coupling derived from a standard fitting A coupling for joining pipe segments together is disclosed. The coupling is derived from a standard fitting and has a housing with a socket and a first expanded region adjacent to the socket and a second expanded region adjacent to the first expanded region. A seali... | 07/05/2005 |
| 6893051 | Pipe coupling Disclosed is a pipe coupling, which can connect pipes in a sealed condition. The pipe coupling includes: a connector body having pipe locking jaws having the same diameter as the inner diameter of a pipe inserted into the pipe coupling, and a taper part gradually re... | 05/17/2005 |
| 6773040 | Spacer-less type pipe joint and packing ring used for the same A spacer-less type pipe joint comprises a press ring which has a protruding portion at its outer periphery and is fitted to an outer periphery of one end side of jointed pipe, a joint main body which has a protruding portion opposing the protruding portion of the pr... | 08/10/2004 |
| 6749232 | Pipe clamp, in particular, pipe coupling A pipe clamp has a tightenable clamp body and at least one spike strip arranged radially inwardly within the clamp body and slanted toward the axial center of the clamp body. The spike strip and a radially inner side of the clamp body delimit an acute angle therebet... | 06/15/2004 |
| 6663145 | Conduit coupling with interior grip rings A grip coupling (18) for tubular conduit has a coupling body (20) formed by two halves (22, 24) which are joined along weld lines (26). The two halves (22, 24) each include a tapered entrance section (28) and an interior seal (30). The interior seals (30)... | 12/16/2003 |
| 6565125 | Coupling assembly for joining plastic and metal pipes A coupling body has: (i) a central member; (ii) a first retaining member; and, (iii) a second retaining member. The first retaining member and the central member define a first pipe receiving region. The second retaining member and the central member defi... | 05/20/2003 |
| 6505860 | Connection device for conduits A connection device for making a tight connection between two ends of tubes is provided. The connection device includes a body having two symmetrical and opposite portions for engaging ends of respective tubes, and each of the portions has a hooking eleme... | 01/14/2003 |
| 6502867 | Flanged pipe fitting A flanged-pipe fitting for joining the plain ends of pipe is described. The fitting comprises a tubular body having an interior cylindrical chamber with a first and second openings, an annular ridge located between the first and second openings, an annula... | 01/07/2003 |
| 6488319 | Self restrained pressure gasket A method and apparatus for restraining pipe against internal 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 self restrained pressure gasket. The pressure gasket has a rigid ... | 12/03/2002 |
| 6481762 | Pipe coupling A pipe coupling for attachment to a pipe includes a sleeve. One end of the sleeve is configured to receive a pipe end. The pipe coupling also includes an annular gasket disposed within the end of the sleeve for encircling the pipe end. The coupling includ... | 11/19/2002 |
| 6481755 | Coupling device and method for fabricating a grip ring to be used in such a coupling device Coupling device for a pipe, comprising a sleeve having an insert end for the pipe and a sealing means adapted for realizing a seal around the pipe when inserted in the sleeve, said sealing means comprising a plurality of mutually slidable elements which t... | 11/19/2002 |
| 6416085 | Pressurized hose coupling A fluid pressure hose coupling for connecting a flexible hose to a pressurized fluid line. The coupling has a connecting end section for securement to a pressurizable line and a cylindrical nipple end section for securing an end section of a flexible hose... | 07/09/2002 |
