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| Number | Title | Issue Date |
| 8007014 | Axially-tensioned pipe joint An axially tensioned pipe joint for joining two pipes is disclosed. The pipe joint comprises a first PVC pipe having an outer surface. The pipe joint also comprises a second PVC pipe having a bell end which fits onto the spigot end. The bell end has a plurality of a... | 08/30/2011 |
| 7854451 | Anchor pile coupling system Disclosed is an anchor pile coupling system, consisting of a male and female pile coupling which can be attached to opposite ends of a piling, as well as a top drive which is used to apply rotational force to the piling string in order to guide it into the anchoring... | 12/21/2010 |
| 7681929 | Pipe coupler for metal to plastic pipe A pipe coupler for coupling pipe of dissimilar composition having a substantially cylindrical housing with a stub end and a bell end, the housing having a primarily plastic composition with an embedded anchor ring at the bell end wherein the anchor ring includes a p... | 03/23/2010 |
| 7516991 | Pipework with a fastening device A pipework has an outer pipe, an inner pipe a position hole, a pressing element and a bolt. The outer pipe has an outer wall. The inner pipe is slidably mounted in the outer pipe. The position hole is formed through the outer wall of the outer pipe and has an inner ... | 04/14/2009 |
| 7416226 | Spring-biased pin connection system A system for connecting a stripper rubber to drilling head equipment comprises an adapter, a stripper rubber insert and a pin assembly. The adapter includes a primary bore, a groove extending around the primary bore, drill head equipment engaging structure adjacent ... | 08/26/2008 |
| 7404582 | Conduit coupling assembly A coupling system for conduit and pipe for carrying insulated electrical cable, more particularly, a conduit coupling assembly for connecting multiple lengths of conduit in coaxial relationship. ... | 07/29/2008 |
| 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 |
| 7243958 | Spring-biased pin connection system A connection system is described for connecting parts of an apparatus. A first part having one or more pin receptacles cooperatively mates to a second part housing one or more spring-biased pin assemblies to provide a fluid-tight seal. The second part further provid... | 07/17/2007 |
| 7243675 | Drop tube segments adapted for use with a liquid reservoir A drop tube segment is adapted for use with a liquid reservoir. The drop tube segment includes a conduit with an end portion and a sidewall including a sidewall portion at least partially defining an interior housing area. The drop tube segment further includes a va... | 07/17/2007 |
| 7225523 | Method for coupling and expanding tubing An expandable tubing assembly comprises a tubular connector defining overlapping longitudinal slots, the connector comprising end portions and an intermediate portion. The slots extend over the whole length of the connector, but the only slot overlap occurs in the i... | 06/05/2007 |
| 7213610 | Drop tube segments adapted for use with a liquid reservoir and methods Drop tube segments are provided. Each drop tube segment may be attached to another drop tube segment of a drop tube assembly. The drop tube segments include a wall with a fastener receiving structure that is devoid of any opening extending between inner and outer su... | 05/08/2007 |
| 7204524 | Flexible pipe/end fitting assembly and method An end fitting, a pipe assembly and a method of assembling a pipe assembly according to which an end fitting is provided with a bore and at least one raised portion is provided on the surface of the housing of the end fitting defining the bore. When an end portion o... | 04/17/2007 |
| 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 |
| 7163030 | Rectangular and square double wall ducting systems A duct structure (510), includes lengths of double wall square/rectangular duct (532) manufactured by pre-forming the duct in round cross-section (51) and then transforming the round cross-section into square and rectangular cross-sections utili... | 01/16/2007 |
| 7146704 | Method for coupling connectors using an anti-rotation device The present invention is generally directed to an anti-rotation device for mating connectors, and methods of using same. In one illustrative embodiment, the method comprises coupling a first connector to a second connector, removing at least a portion of the second ... | 12/12/2006 |
| 7104104 | Rectangular and square ducting systems A duct structure (50), includes lengths of square/rectangular duct (52) manufactured by pre-forming the duct in round cross-section (51) and then transforming the round cross-section into square and rectangular cross-sections utilizing expandabl... | 09/12/2006 |
| 7005581 | Electrical metallic tube, coupling, and connector apparatus and method A labor saving system, method, and apparatus for connecting or coupling lengths of electric metallic tubing (“EMT”). The invention uses couplings/connectors that have barbs that are designed to engage corresponding indentations on EMT to ensure proper installati... | 02/28/2006 |
| 6994379 | Tubular assembly having an internal plug A tubular assembly that includes a plug (45) residing within at least a portion of each of a first tube (12) and a second tube (30), is described. Each of the first and second tubes have perforations (21 and 39) that are separately... | 02/07/2006 |
| 6969016 | Dampening water spraying device A dampening water spraying device includes: a nozzle for spraying dampening water; a nozzle holder including, an end surface connectable to the nozzle, and an outer peripheral portion provided with at least one gro... | 11/29/2005 |
| 6965079 | Electrical ground connection apparatus Apparatus for providing an electrical ground connection through a pipe or conduit system including electrically non-conductive portions. A pipe fitting, preferably although not necessarily made of electrically non-conductive material, is equipped with an electricall... | 11/15/2005 |
| 6936762 | Cable protector A device for installing a cable into a raceway member is disclosed. The device includes an elongate member having a first end portion and a second end portion adjacent to the first end portion. The second end portion is adapted to removably engage the raceway member... | 08/30/2005 |
| 6918618 | Joining mechanism for PVC pipe The present invention relates to a PVC-pipe, axially-tensioned joint. The pipe joint comprises a first PVC pipe having a spigot end, wherein the spigot end has a circumferential groove in and circumferentially around the outer surface of the spigot end. An inner rin... | 07/19/2005 |
| 6863312 | Pipe connector assembly A pipe connector consisting of a sphincteral band having an over-center buckle; a coupling sleeve extending through the sphincteral band, the coupling sleeve having a wall and having a plurality of traction pin apertures extending through the wall; and a plurality o... | 03/08/2005 |
| 6817632 | Flex tube joint with torsion relief Connector tubing is provided by a pair of nested corrugated spiral flex tubes twistable relative to each other about an axis at a flex tube joint to provide torsion relief. ... | 11/16/2004 |
| 6789822 | Expandable slotted tubing string and method for connecting such a tubing string An expandable tubing assembly comprises a tubular connector defining overlapping longitudinal slots, the connector comprising end portions and an intermediate portion. The slots extend over the whole length of the connector, but the only slot overlap occurs in the i... | 09/14/2004 |
| 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 |
| 6715803 | Quick-connect expansion coupling for electrical metallic tubing An expansion coupling for interconnecting the terminal portions of separate first and second lengths of electrical metallic tubing to permit relative axial movement between the first and second lengths of electrical metallic tubing. The expansion coupling comprises ... | 04/06/2004 |
| 6672849 | Quick connect/disconnect coupling apparatus A coupling apparatus provides quick-connect coupling between a fluid source such as a condiment source and a pump. In specific embodiments, the coupling apparatus comprises a tube, and a fluid source connector coupled to an end of the tube and configured ... | 01/06/2004 |
| 6520547 | Quick locking pipe joint for plain or profiled pipe A pipe and pipe coupling assembly (10) including a pipe (20) having a first end (72) and a pipe (22) having a second end (74). The first end (72) includes a threaded portion (60) and a keyway (32), and is adapted to slidably engage the second end (74). Th... | 02/18/2003 |
| 6494495 | Locked connection A locked connection comprises a circular groove around a pin or inside member. A box or outside member provides a series of passages tangential to the groove in a made up position of the box and pin. One or more locking pins extend through the passages. W... | 12/17/2002 |
| 6460898 | Universal pipe joint A universal pipe joint for attaching two round pipes together accommodating misalignment using a female adapter fitting (30) engaging a male adapter fitting (44), each having a radial interior and exterior diameter (38) and (50) with a compression nut (52... | 10/08/2002 |
| 6447028 | Joint fitting A fitting for connecting two components is described. The fitting may be explosion proof for use in hazardous environments. The fitting may swivel allowing fast and easy connection to fixed components, thus minimizing the time required for installation an... | 09/10/2002 |
| 6328343 | Riser dog screw with fail safe mechanism A dog-style connector with a fail-safe mechanism for a marine riser system that connects a box portion and a pin portion of a riser. An actuator housing is affixed to an external surface of the box portion. The actuator housing has an outer bore and a thr... | 12/11/2001 |
| 6322273 | Joint restraint assembly Joint restraint assembly for connecting pipes which includes a substantially annular body, at least one segment, and at least one bolt. The annular body is configured to fit around a pipe and has at least one pocket formed adjacent the pipe and at least o... | 11/27/2001 |
| 6305722 | Telescopic tube, in particular for sprinkler systems The invention concerns a telescopic tube (10), in particular for sprinkler systems, comprising an outer tube (12) and an inner tube (14) which is movable relative to the latter and has an inner end piece (36) which extends inside the outer tube and has an... | 10/23/2001 |
| 6273634 | Connector for an expandable tubing string A connector for interconnecting a pair of adjacent sections of an expandable tubing string includes a plastically expandable sleeve that is arranged co-axially around or inside the ends of the interconnected tubing sections and a series of circumferential... | 08/14/2001 |
| 6236700 | Downcommer coupling apparatus and methods Downcommer coupling apparatus and methods for replacing a core spray line downcommer pipe coupled to a shroud T-box are described. In one embodiment, the coupling apparatus includes a wedge flange, a wedge, a wedge housing, a pipe seal, a cylindrical pipe... | 05/22/2001 |
| 6217084 | Device on a conduit end and arrangement for joining conduits A device on a conduit end for joining the conduit (1) to a coupling (4) or some other receiver of the end of the conduit, which is made of aluminium or an aluminium alloy. Two external annular beads (2, 2') are pressed out from the conduit wall on the con... | 04/17/2001 |
| 6213522 | Device for securing adjacent segments of fibrous glass duct work and the like and a system including said device A device and system for securing adjacent segments of duct work formed from fibrous glass duct board insulation and the like is disclosed. The device comprises a corner member having two legs disposed at approximately right angles, each of said legs havin... | 04/10/2001 |
| 6199914 | Drilling quick connectors A quick connector fitting assembly is provided which includes a fitting which releasably connects to a well casing for providing an interface for the attachment of various types of well related equipment. The quick connector fitting connects using fastene... | 03/13/2001 |
