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| Number | Title | Issue Date |
| 8091932 | Coupling device and method for manufacturing a grip ring to be used in such a coupling device A coupling device for a tube comprising a coupling piece with an insert end for the tube and a sealing organ which is suitable for realizing a seal around the tube inserted in the coupling piece, whereby the sealing organ comprises a series of elements which togethe... | 01/10/2012 |
| 7837239 | Pipe coupling with built-in grip A pipe coupling including an annular clamp having an opening at least one end of its axial length for inserting therein a pipe, the annular clamp including two clamp members, an annular inclined surface extending axially from each of the clamp members, a wedge-shape... | 11/23/2010 |
| 7837238 | Pipe grip ring A grip element comprising a wedge-like structure supporting a metal plate, the exposed outer surface thereof being provided with an array of large and small gripping teeth. The large teeth project from the surface of said metal plate further than said small teeth. T... | 11/23/2010 |
| 7665773 | Self-tightening clamp assemblies for protection against full pipe separation Improved self-tightening clamp assemblies are designed for application to the adjacent ends of connected pipe sections in spanning relationship to the joint therebetween. The assemblies include a plurality of clamp bodies configured for placement about the adjacent ... | 02/23/2010 |
| 7571940 | Pipe coupling with built-in grip The invention provides an improved coupling having an innovative pipe grip preventing inadvertent separation of the two items being coupled. The improved releasable band-clamp coupling comprises a central housing of cross-section resembling a wide, low-wall channel,... | 08/11/2009 |
| 7431349 | Releasable connection arrangement for two rotationally symmetrical components A releasable connection arrangement includes a first component, which has a collar projecting radially outwards with a first clamping surface and a first bearing surface and a socket disposed at an open end of a second component for retaining the collar by gripping ... | 10/07/2008 |
| 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 |
| 7296827 | Releasable connection arrangement for two rotationally symmetrical components A releasable connection arrangement that includes, a first component, which has a collar projecting radially outwards with a first clamping surface and a first bearing surface and a socket disposed at an open end of a second component for retaining the collar by gri... | 11/20/2007 |
| 7290806 | Assembly fixture An assembly fixture for the separable connection of a first component 1 and a second component 2, the first component 1 having an essentially cylindrical end-face recess 3, with the second component 2 having an essentially cylindri... | 11/06/2007 |
| 7219934 | Pipe coupling A pipe coupling for coupling the ends of pipe sections together end to end, wherein the coupling includes a barrel member, at least one coupling member, at least one elastomeric sealing ring, a tangentially extending bolt and interacting members. The barrel member s... | 05/22/2007 |
| 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 |
| 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 |
| 7104573 | Energized restraining gasket for mechanical joints of pipes A gasket for converting a standard mechanical joint into a restrained mechanical joint without the need for altered configuration of the bell, spigot, or gland of the joint, and without the need for additional fittings or devices. In the practice of the present inve... | 09/12/2006 |
| 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 |
| 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 |
| 6843514 | Pipe coupling device A pipe coupling device (2) for joining the ends of two pipes is disclosed. The pipe coupling device (2) includes a sleeve (4) configured to receive an end of a pipe and having an annular first abutment surface (6); a compression member ( | 01/18/2005 |
| 6832791 | Connection means for interconnecting two duct elements Connection elements for interconnecting two duct ends, the elements comprising a tubular connection member for uniting the duct ends, the tubular member comprising at least one pair of half-bodies which is arranged so as to be closed on at least one duct end and whi... | 12/21/2004 |
| 6739631 | Torque-limiting bolt-and-nut assembly A torque-limiting bolt-and-nut assembly is provided for actuating a pipe-pressing member in order to secure two pipe ends together. The bolt includes a threaded shank, a secondary drive head, and a shearable drive head designed to be sheared-off by a torque exceedin... | 05/25/2004 |
| 6536811 | Pipe coupling with assembly tool A pipe coupling includes mating hub sections engaged by outer split clamp elements that are compressed together against mating tapered surfaces of the hub sections to draw the hub sections together into tight fitting relationship. The clamp elements are d... | 03/25/2003 |
| 6164708 | Adjustable safety and rapidly assembled connector An adjustable safety and rapidly assembled connector includes a first joint, a second joint, two connecting seats, and a locking device. A sealing ring is installed within the connecting end of the second joint. A buckling groove is installed external the... | 12/26/2000 |
| 6129391 | Plastic coupling for plastic pipe having a completed installation signal A plastic pipe coupling for the joining of plain end plastic pipe that includes a pair of longitudinally displaced annular followers, a tubular middle ring extending between the opposite followers, an annular gasket within each follower contiguous to the ... | 10/10/2000 |
| 6086120 | Methods and apparatus for performing jet pump riser pipe repairs Methods and apparatus for supporting the lower riser assembly of a jet pump in a reactor pressure vessel (RPV) of a nuclear reactor are described. In one embodiment of the apparatus, the clamp apparatus facilitates applying compression force on the elbow.... | 07/11/2000 |
| 6047996 | Self-centering low profile connection The assembly of a connection that uses cooperating grooved surfaces to provide an easily disassembled and assembled connection is improved by the use of a centering surface and cooperating lip that engages the faces of the connection end to prevent latera... | 04/11/2000 |
| 5984369 | Assembly including tubular bodies and mated with a compression loaded adhesive bond An assembly mating first and second tubular bodies is disclosed. The mating assembly includes at least a sleeve structure forming a part of the first tubular body and defining an inner receptacle surface region, a compression loading assembly integrally f... | 11/16/1999 |
| 5947527 | Junction holder for connecting pipes with mechanical joints The present invention provides a pipe junction holder for connecting a pipe to a mechanical joint. The junction holder contains a wedge placed between a seal gland and a wedge gland. The wedge has a split opening along its outer sloped surface. The seal g... | 09/07/1999 |
| 5934710 | Device for the sealed butt connection of two metal pipes A sealing device for the sealed connection of two pipes placed end to end includes an upper component and a lower component. The upper component includes a frustoconical rib extending outward from a cylindrical end part and diverging upward into a first w... | 08/10/1999 |
| 5913635 | Pipe couplings for irrigation systems An emitter pipe and coupling for use in an irrigation system wherein the emitter pipe includes inner and outer flexible plastic pipe with a pair of longitudinally extending spacers therebetween, the inner pipe having a plurality of longitudinally spaced o... | 06/22/1999 |
| 5879030 | Flow line coupling A coupling assembly for leak proof connection of the ends of two lengths of pipe or tubing. One end of a first pipe is coupled to a coupling box which is connected to or integrally formed on the end of a second pipe. The coupling box has threads for engag... | 03/09/1999 |
| 5846412 | Diffuser construction and mounting arrangement An improved air diffuser and mounting arrangement for mounting diffusers on submerged air laterals in a wastewater treatment system. The diffuser is formed form a cylindrical pipe which is flattened on most of its length but left partially cylindrical for... | 12/08/1998 |
| 5730471 | Apparatus for gripping a pipe An apparatus for gripping a pipe comprises an outer member having at least one inclined inner surface and an inner member having an inclined outer surface, a tubular member having an opening to accommodate said inner member and a threaded part, and a thre... | 03/24/1998 |
| 5577857 | Joint structure for pillars and its joining method End plates are forcibly fixed on the longitudinal end surfaces of pillars such as foundation piles buried in the ground. The upper and lower end plates are butted, and are vertically held by a circumferential recessed groove on the inner surface of an ins... | 11/26/1996 |
| 5562311 | Coupling for an end of a hose A coupling for connection to an end of a hose to allow fluid to pass therethrough. The coupling comprises a tapered end inserted into the end of the hose and a tapered collar fitted on the outside of the hose. Once assembled, the collar provides uniform c... | 10/08/1996 |
| 5470113 | Connector for plastic tubes A connector for cylindrical plastic tubes has a metallic inner sleeve with an outer diameter that is greater than in inner diameter of the plastic tubes to be connected. The inner sleeve has a free end and a securing flange positioned opposite the free en... | 11/28/1995 |
| 5388308 | Vacuum arm joint assembly A friction joint assembly 20 comprising a first arm 21 and a second arm 22 pivotally connected about pivot means, the pivot means including mechanical adjustment means comprising opposed frictional components adapted to be urged, one against the other, ax... | 02/14/1995 |
| 5368344 | Coupling stud assembly A coupling stud assembly for coupling together a pair of flanges. A stud ing a tapered surface is inserted into respective overlapping through-holes provided in the flanges so that a space is defined between the stud and inner walls of the holes. A wedge... | 11/29/1994 |
| 5333912 | Track switch snow melter duct system with quick release joints The present invention is directed toward a quick release cam locking joint for connecting adjacent ducts for a track switch snow melter. The invention also includes a track duct support bracket for holding track switch snow melter track ducts.... | 08/02/1994 |
| 5277460 | Split section body joint with wedge ring A device and method of manufacturing a jointing together cylindrical bodies, in which one of the bodies is composed of two semi-cylindrical shells. Each body is provided with a flanged end which are locked against one another by a threaded clamping ring h... | 01/11/1994 |
| 5269568 | Security seal apparatus A security seal device is shown formed of plastic material generally in the shape of two hollow half cylinders connected together by a longitudinally extending living hinge and having apertured end faces. Spaced, opposed lips are formed in laterally exten... | 12/14/1993 |
| 5232249 | Fastening device A fastening device in the shape of an outer clamping sleeve member with an internal thread, and an inner clamping sleeve member with an external thread, said clamping sleeve members being mutually rotatable. One or both of the clamping sleeve members may ... | 08/03/1993 |
| 5216941 | Tool for securing a fastening device A tool is provided for securing a fastening device in the shape of an outer clamping sleeve member with an internal thread, and an inner clamping sleeve member with an external thread, said clamping sleeve members being mutually rotatable. Wrench mounts a... | 06/08/1993 |
