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| Number | Title | Issue Date |
| 8052173 | Threaded connections with high and low friction coatings A threaded metallic joint has the thread surface of pin (100) and box (200) covered with a coating comprising a first layer (24) laid on the overall surface of the pin member (100), and a second layer (25) laid on part of the surfa... | 11/08/2011 |
| 7883118 | Threaded joint for steel pipes A threaded joint for steel pipes for use in an oil well which has enhanced galling resistance and which is protected from rusting comprises a pin and a box each having a contact surface including a threaded portion and an unthreaded metal contact portion. The contac... | 02/08/2011 |
| 7866706 | Threaded joint for steel pipe A threaded joint for a steel pipe comprises a pin and a box with a contact surface having a threaded part and a unthreaded metal contact part, wherein a solid lubricating film containing one or more kinds of lubricating powders selected from graphite, mica, calcium ... | 01/11/2011 |
| 7770935 | Threaded joint for steel pipes A threaded joint for steel pipes comprises a pin (1) and a box (2) each having a threaded portion (3a or 3b) and an unthreaded metal-to-metal contact portion (4a or 4b) as contact surfaces which c... | 08/10/2010 |
| 7740285 | Threaded joint for steel pipes A threaded joint for steel pipes comprised of a pin (1) and a box (2) each having a threaded portion (1a, 2b) and an unthreaded contact portion (1b, 2a) exhibits adequate leakage resistance and ga... | 06/22/2010 |
| 7360798 | Threaded joint for steel pipes A threaded joint for steel pipes comprising a pin 1 and a box 2 each having a contact surface comprising a threaded portion 3 or 4 and an unthreaded metal contact portion 8 is provided with improved anti-galling propertied by formi... | 04/22/2008 |
| 7337990 | Attachment for air spray gun There is provided an attachment for an air spray gun, to be connected to the bottom of a grip of the spray gun. It includes a control valve to adjust the air flow rate, a gun coupling disposed in the body of the control valve to communicate with an outlet-side passa... | 03/04/2008 |
| 7314087 | Heave compensation system for hydraulic workover The present invention relates generally to offshore drilling and production operations, and, more particularly, to marine drilling workover/intervention tensioning and compensating devices and methodologies. A heave compensated hydraulic workover device and/or syste... | 01/01/2008 |
| 7278335 | Adjustable threaded bearing and bearing assembly for a window operator and feature A bearing assembly for use with a window operator has a housing with an operator slot and a bore through which is threaded an adjustable bearing. The bearing contains a smooth end with two walls of differing diameter that form shoulders. The shoulders fit substantia... | 10/09/2007 |
| 7279438 | Coated insulation board or batt An insulation composite for attenuating energy or sound transmission has a body layer of insulating material with a roughly textured face and a uniform thickness solid cover layer permanently embedded in the body layer to a partial depth so that material of the body... | 10/09/2007 |
| 7270348 | Releasable connector including swivel A connector for releasably attaching a pair of conduits includes male and female components having proximal and distal ends and a lumen, and a swivel connection releasably connecting the male and female components. The swivel connection permits fluid communication b... | 09/18/2007 |
| 7267374 | Swivel coupling A coupling includes a main body, a rotatable member, and a seal member. The main body has an internal passageway for fluid flow therethrough, and includes a first portion defining a first end of the coupling and includes a second portion defining a second end of the... | 09/11/2007 |
| 7255374 | Threaded tube joint A threaded tube joint for oil extraction industry has a trapezoidal thread and a toroidal sealing surface (11) placed at its end near the thread and engages, for sealing, a corresponding frusto-conical sealing surface (12) wherein the toroidal sealing ... | 08/14/2007 |
| 7234668 | Friction welding metal components A method of forming a structural airframe component for an aircraft and an airframe structural component are provided. The method includes placing at least two components (1,2) in abutting relationship with each other and joining them together by friction sti... | 06/26/2007 |
| 7219739 | Heave compensation system for hydraulic workover The present invention relates generally to offshore drilling and production operations, and, more particularly, to marine drilling workover/intervention tensioning and compensating devices and methodologies. A heave compensated hydraulic workover device and/or syste... | 05/22/2007 |
| 7216897 | Active torque reduction for hydraulically filled joints A system and method reduce starting torque for initial rotational displacement and assure smoothness of motion for continuing displacement of a rotary joint. A rotary joint (either cylindrical or spherical) has a first annular joint member and a second annular joint... | 05/15/2007 |
| 7188869 | Scuba regulator connector using a sealed ball swivel A ball and socket-type swivel connector for use with second stage regulators used by scuba divers. The ball is made from a metal with good corrosion resistance. The ball is then held into a true position by two separate low friction bushings. The two bushings, “sa... | 03/13/2007 |
| 7172380 | Wheel nut assembly A wheel nut assembly includes a stud (1), a main wheel nut (4) mountable on threads (3) provided on the stud, and a retaining nut (6) engageable with threads (5) provided on the stud to prevent accidental loosening of the wheel nut... | 02/06/2007 |
| 7169239 | Solid expandable tubular members formed from very low carbon steel and method A very low carbon steel alloy is provided for use in manufacturing tubular members such as oil country tubular goods. The tubular members may be radially expanded from at least twenty percent to forty percent. Sections or joints of casing formed from the steel alloy... | 01/30/2007 |
| 7156426 | Rotary transmission leadthrough for fluid systems A rotary transmission leadthrough for fluid systems is proposed, by means of which the mobility of a fluid system is increased and new fields of application can therefore be opened up. This is achieved according to the invention in that, in addition to a first rotor... | 01/02/2007 |
| 7137756 | Fluid-tight bell-and-spigot-joint for box culverts A box culvert and gasket assembly is provided that enables fluid-tight bell-and spigot joints to be formed between abutting ends of box culverts. The joints according to the assembly of the present invention can remain fluid-tight up to at least 13 psi of water pres... | 11/21/2006 |
| 7134287 | Turbine combustor endcover assembly The endcover assembly for a combustor includes an endcover having an aperture, an insert disposed in the stepped bore opening through an internal face of the endcover, a fuel cartridge extending through the insert and aperture and a seal cover on the external face o... | 11/14/2006 |
| 7128038 | Intake device for an internal combustion engine An intake device for an internal combustion engine includes a throttle body (1) that forms an intake passage (1a). A throttle valve (2) is arranged within the intake passage. A pipe member (26) is connected to the throttle body, wh... | 10/31/2006 |
| 7118137 | Testable pipe joint A locking ring-type pipe joint has a spigot ring provided on a first pipe section, a bell ring provided on a second pipe section, and a locking ring that may be contracted to engage the spigot ring to the bell ring. First and second circumferential grooves formed in... | 10/10/2006 |
| 7114869 | Ball joint system for drywall finishing tools The present disclosure describes drywall tools that employ rotatable joints, e.g., ball joints, and methods of using such tools. One particular implementation of a drywall tool includes a body having a recess adapted to pivotably receive a rounded connector of a han... | 10/03/2006 |
| 7108607 | Helical groove fasteners and methods for making same Helical groove fasteners and methods for producing the same are provided for use in systems requiring fluid passage through the fastener. In one embodiment, the fastener includes a shank, a head, a threaded portion, and at least one groove extending through at least... | 09/19/2006 |
| 7108058 | Packing assembly for rotary drilling swivels and pumps having rotating shafts A packing assembly for use with a rotary drilling swivel having a cylindrical wash pipe comprising a housing assembly including a packing gland forming a sealing assembly chamber around the wash pipe, the packing gland including an injection port in open communicati... | 09/19/2006 |
| 7090048 | Method and apparatus for exhaust sound attenuation on engines with cylinder deactivation A system for attenuating exhaust noise from an engine with a first group of active cylinders and a second group of deactivatable cylinders includes a first exhaust manifold connected to the first group of active cylinders and a second exhaust manifold connected to t... | 08/15/2006 |
| 7086608 | Shaft seal with grease retainer A seal arrangement for a rotatable shaft that is secured at one end thereof in a housing, and that mounts a water distribution plate on an opposite end thereof, the shaft seal comprising a flexible annular member having a radially inner portion including at least on... | 08/08/2006 |
| 7066253 | Casing shoe A shoe for guiding a string within a well-bore comprises an annular body of relatively hard material and a nose portion of relatively soft material which are interlocked so that when the nose portion is drilled through, any remaining parts are held against the annul... | 06/27/2006 |
| 7056053 | Bolting arrangement including a two-piece washer for minimizing bolt bending A two-piece washer to allow tilting movement of the washer elements. One annular washer element includes a convex annular surface that engages with a concave annular surface of a second annular washer element. When the convex and concave surfaces of the respective w... | 06/06/2006 |
| 7044221 | Apparatus for coupling a tubular member to a preexisting structure An apparatus for coupling a tubular member to a preexisting structure. ... | 05/16/2006 |
| 7040668 | Tube joint A tube joint comprises a body composed of a resin material, a connecting member installed to one end of the body, an insert section inserted into the body, a first deformable section with a reduced diameter as compared with the insert section, and a second deformabl... | 05/09/2006 |
| 7025842 | Ultrasound welding of plastics components A process for the bonding of a plastics pipe to another plastics part by ultrasound welding using sound waves which act longitudinally with respect to the pipe axis, while the arrangement of the areas to be welded is substantially parallel to the pipe axis. The weld... | 04/11/2006 |
| 7021675 | Swivel assembly A swivel assembly for use with a water gun mounted on a base or coupled to a water supply conduit to discharge a high velocity stream of water into a mineral stockpile and slurry pit, the swivel assembly comprises a stationary swivel section and a rotatably swivel s... | 04/04/2006 |
| 7014223 | Screw threaded joint for continuous-profile tubes A flush-type integral threaded joint with truncated-cone threads, with two scaling surfaces 11′, 12′, 11″, 12″) set at the end of the threaded portions (7, 8), and with two annular scaling shoulders (5′, 6′, 5″, 6″). The two thre... | 03/21/2006 |
| 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 |
| 6997264 | Method of jointing and running expandable tubulars A connector arrangement used for connecting a first tubular to a second tubular. The first tubular member has at least one circumferential ring profile, and the second tubular member has a corresponding number of matching circumferential ring profiles. When the ring... | 02/14/2006 |
| 6976644 | Extension pole with swivel spray nozzle A spray nozzle mounts to an extension pole end in a swivel joint. A swivel nozzle base connects to the pole and a manifold swivelly couples the base to a swivel nozzle head such that pressurized fluid passing through the pole passes into the base, through the manifo... | 12/20/2005 |
| 6976711 | Threaded connection especially for radially plastically expandable conduit A threaded connection for a conduit is disclosed. The connection includes a male member having threads on it defining a load flank lead, a stab flank lead and a nominal lead. A female member has threads thereon adapted to mate with the threads on the male member. Th... | 12/20/2005 |
