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| Number | Title | Issue Date |
| 7431341 | Pipe liner connector A pipe liner connector suitable for connecting pipe sections that comprise a liner is described. The pipe liner connector comprise vents and/or venting grooves which act to balance the pressure between the micro-annulus, formed between the liner and the pipe section... | 10/07/2008 |
| 7387167 | Insulating device and assembly There is disclosed an electrically insulating device in the form of a sleeve (12) for a downhole tool, for electrically insulating a first threaded electrically conductive member in the form of an anchor sub (16) from a second threaded electrically con... | 06/17/2008 |
| 7364203 | Reinforcement for arched type structure with beveled screwed ends An electrical isolation connector subassembly for interconnecting adjacent tubular drill rods of a drilling system used in drilling bore holes in earth formations, the connector comprising an electrically insulative sleeve being sandwiched between two electrically i... | 04/29/2008 |
| 7360796 | Electrical isolation connector subassembly for use in directional drilling An electrical isolation connector subassembly for interconnecting adjacent tubular drill rods of a drilling system used in drilling bore holes in earth formations, the connector comprising an electrically insulative sleeve being sandwiched between two electrically i... | 04/22/2008 |
| 7342175 | Electrical connector A splice electrical connector for connecting core members of two cable conductors to each other is provided. The connector include two end members. Each end member comprises a first coupler end and a second wedge contact end. A splice coupler connects the first coup... | 03/11/2008 |
| 7326015 | Electrically insulated wedge thread connection An electrically-insulative threaded connection includes a pin member having a pin thread and a box member having a box thread. An insulating composite layer is disposed between the pin thread and the box thread. The insulating composite layer includes an insulating ... | 02/05/2008 |
| 7261324 | Containment apparatus and method for attachment to a ruptured pipe In one embodiment, a containment apparatus includes an outer casing having a body with a first end and a second end sized to fit around a pipe, and an interior channel in the body that extends between the first and second ends configured to receive a section of the ... | 08/28/2007 |
| 7255183 | Gap sub assembly The gap sub assembly comprises a pair of electrically conductive subs. Each sub has a threaded pin and box. A pin and box are threaded together to form a connection. An electrically insulating, woven fabric overlies and conforms with the threads of the connection pi... | 08/14/2007 |
| 7207603 | Insulated tubular assembly A tubular assembly 10 is disclosed for passing fluids within a hydrocarbon recovery well. The tubular assembly 10 has an insulated connection 12 between insulated tubing segments 14, 16. Tubing segments 14, 16 are connected via a t... | 04/24/2007 |
| 7180292 | Cooling of coils in magnetic resonance imaging An MRIS gradient coil structure has coiled tubes for carrying a cooling medium to cool the coil structure. The inlet and outlet of the coiled tubes are insulated electrically from the remainder thereof by a ceramic insulator. ... | 02/20/2007 |
| 7163065 | Combined telemetry system and method Telemetry systems and methods are disclosed for real time communication of information between multiple positions in a wellbore. ... | 01/16/2007 |
| 7143788 | High temperature line expansion installation with bellows An flexible coupling is shown for an insulated piping system of the type used to convey steam and other high temperature fluids. The coupling uses a flexible bellows and additional insulating and joining components to couple conventional lengths of insulated pipe. T... | 12/05/2006 |
| 7140446 | Connector for expandable well screen A tubing connection arrangement that includes two expandable tubing sections is disclosed. In one embodiment, each of the tubing sections includes a filter screen sandwiched between inner expandable tubing and outer expandable tubing. On expansion of the tubing sect... | 11/28/2006 |
| 7134455 | Insulator apparatus for vacuum insulated tubing An insulating apparatus for use with vacuum insulated tubing sting to reduce heat loss through the joints, where the apparatus includes an insulator adapted to surround the joint and a latching joint protector adapted to surround the insulator and hold the insulator... | 11/14/2006 |
| 7108063 | Connectable rod system for driving downhole pumps for oil field installations Improved sucker rod joints for down hole petroleum pumping applications are provided within the form factor of standard API sucker rods, such that existing inventory in suitable condition is fully usable in more demanding applications. The pin ends are selected or p... | 09/19/2006 |
| 7093680 | Subsurface signal transmitting apparatus An insulator for a subsurface signal transmitting apparatus. The insulator includes a housing, a mandrel axially disposed inside the housing, a first insulating material disposed between the housing and the mandrel, a first sleeve formed of a second insulating mater... | 08/22/2006 |
| 7032930 | Electrical isolation connector subassembly for use in directional drilling An electrical isolation connector subassembly for interconnecting adjacent tubular drill rods of a drilling system used in drilling bore holes in earth formations, the connector comprising an electrically insulative sleeve being sandwiched between two electrically i... | 04/25/2006 |
| 7032621 | High temperature line expansion installation with release agent A high temperature pre-insulated piping system is shown which can withstand conveyance temperatures in excess of 250° F. The piping system includes a first and second length of insulated and jacketed pipe. Each pipe length includes an inner metal pipe having an int... | 04/25/2006 |
| 7028717 | Water stop for a loop installation in a pre-insulated pipeline A high temperature pre-insulated piping system is shown which has a special water stop located along the length of the piping. The water stop has an internal disk which forms a pair of isolated chambers within the water stop. The internal disk is formed of a materia... | 04/18/2006 |
| 7011115 | Insulated pipe structure and methods of making such structures An insulated pipe structure suitable for use in an undersea pipeline comprises, intermediate its ends, an inner pipe (11) for serving as a conduit for fluid flowing through the pipe structure, thermally insulating material (3) extending around the inne... | 03/14/2006 |
| 7007982 | Tube fitting A tube fitting capable of absorbing vibration and shock resulting from a high pressure fluid passing through the tube fitting while it is used includes a connection head, a connection nipple, and an intermediate connection member. The connection head and the connect... | 03/07/2006 |
| 6996977 | Decoupling hose for a motor vehicle exhaust system A method of avoiding damage to a decoupling hose mounted between two tubes of a motor vehicle exhaust system, said hose comprising a deformable inner portion, an outer sealing leakproofing portion in the form of a continuous and leaktight sleeve having a flexible ce... | 02/14/2006 |
| 6978807 | Water stop for a line installation in a pre-insulated pipeline A high temperature pre-insulated piping system is shown which has a special water stop located along the length of the piping. The water stop has an internal disk which forms a pair of isolated regions within the water stop. The internal disk is formed of a material... | 12/27/2005 |
| 6973724 | Method for making a tubular element and resulting tubular element A method for making a tubular element, in particular a motor vehicle front cross member (1), for forming at least an air conduit (2,3,4) including at least two half-shells (5,6) assembled on two outer longitudinal edges (5a, 6 | 12/13/2005 |
| 6957831 | Nipple for hot water tank conduits A nipple for connection to an outer metal casing of a host water heater for coupling a water conduit to an inner casing of the hot water heater is described. The nipple is a hollow tube having opposed threaded end portions. A thermally insulating sleeve is provided ... | 10/25/2005 |
| 6949163 | Method of fabricating a sleeve for joining and sealing conduits The apparatus for joining and sealing conduits, includes edge trim, a sleeve, and a retaining element. The edge trim is shaped to mount upon and engage an end of a conduit. The sleeve extends between the conduits and at least partially surrounds the edge trim. The s... | 09/27/2005 |
| 6941710 | Columnar jack concealing device The present invention provides a device for concealing and covering a columnar jack for columnar supports and a method of concealing a columnar jack using a columnar jack concealing kit. The device comprises a strap member, a skirt sized and shaped for covering the ... | 09/13/2005 |
| 6937030 | Testing electrical integrity of electrically heated subsea pipelines Method is provided for testing electrically heated subsea pipelines that are “electrical-ready,” that is, equipped for applying electrical power when it is needed for heating the pipeline at any time during the life of the pipeline. Time domain reflectometer app... | 08/30/2005 |
| 6929265 | Moisture seal for an F-Type connector The invention provides a method for moisture sealing the interface between a nut on the leading end of a male F-Type connector and the threaded tubular shaft of the female F connector. The male connector is attached to a coaxial cable and the female is mounted to an... | 08/16/2005 |
| 6929322 | Vehicle seat air conditioning system A buffering member is connected between a cushion member and an air discharge duct of a blower unit to damp vibrations of the blower unit and thus to limit conduction of the vibrations from the blower unit to the cushion member. Resilient damper members are held bet... | 08/16/2005 |
| 6926807 | Insulated transition spool apparatus An insulated transition spool apparatus for mounting unheading devices to pressure vessels, such as coker vessels, and enabling repetitive operation thereof is disclosed. The apparatus comprises an outer housing, an inner housing that encloses an insulating space be... | 08/09/2005 |
| 6926098 | Insulative gap sub assembly and methods Devices and methods for incorporating a gap sub assembly into a drill string to electrically isolate portions of a transmitter assembly within, for example, an MWD tool located within the drill string. The gap sub assembly incorporates upper and lower subs having an... | 08/09/2005 |
| 6925099 | Control of VCSEL emission for better high-speed performance A device includes a VCSEL, an optical fiber, and a lens. The VCSEL generates optical light signals having a spatial emission pattern based around an axis of emission. Light signals emitted from the VCSEL substantially along or near the axis of emission are known as ... | 08/02/2005 |
| 6896057 | Connector for expandable well screen A tubing connection arrangement that includes two expandable tubing sections is disclosed. In one embodiment, each of the tubing sections includes a filter screen sandwiched between inner expandable tubing and outer expandable tubing. On expansion of the tubing sect... | 05/24/2005 |
| 6880862 | Conductive tubular insert for a fuel transport system, and method A conductive tubular connector insert for use in a fuel conveying system to couple a first conductive polymeric tubular member to a second conductive polymeric tubular member such that electrical conductivity is insured in the system as described. The conductive tub... | 04/19/2005 |
| 6880859 | Conduit coupling assembly A conduit coupling assembly is provided for interconnecting a pair of fluid conveying members placed in a confronting relationship within the coupling assembly. The coupling assembly includes a longitudinally split coupler having a pair of coupling halves rotatable ... | 04/19/2005 |
| 6758425 | Coating-powder spray gun A high-voltage powder spray gun includes a rear terminal segment (60) of a powder tube (38) and the front terminal segment (58) of a hookup tube (56) which are inserted far enough in axial and sealing manner to subtend, between their over... | 07/06/2004 |
| 6722443 | Connector for expandable well screen A tubing connection arrangement (10) comprises two expandable tubing sections (12, 14), each tubing section comprising a filter screen (16, 18) sandwiched between inner expandable tubing (20, 22) and outer expandable tubing (24, 26... | 04/20/2004 |
| 6616192 | Dielectric pipe joint, particularly for underground pipes A dielectric joint for pipes, particularly for underground pipes, comprises a male head of a first pipe which enters a mating and mutually opposite cup-shaped female head of a second pipe; a sealing insulating means is interposed between the pipes and is ... | 09/09/2003 |
| 6572152 | Subassembly electrical isolation connector for drill rod In a subassembly electrical isolation connector for interconnecting sections of a tubular drill rod, the subassembly having an electrically insulated connector for and between spaced-apart connector sections to transmit drilling forces therethrough, the u... | 06/03/2003 |
