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| Number | Title | Issue Date |
| 6971610 | Railway diamond wedge crossing with reversible beam castings A railway crossing has a plate with a pocket that defines a crossing angle for enabling one railway line to cross over another at virtually any angle. The pocket closely receives continuous long beams and divided beams. The pocket also has protrusions for restrictin... | 12/06/2005 |
| 6273017 | Boat mooring device A device for mooring a boat has an elongate handle with proximal and distal ends. The distal end has an eyelet. A flexible mooring line with a first end is joined to the eyelet and a second end is adapted to join to the boat. The line extends through the ... | 08/14/2001 |
| 6260625 | Apparatus and method for torsional and lateral centralizing of a riser A centralizing device is provided for a riser of an offshore well platform having an opening through which the riser passes from the platform to a subsea wellhead. The riser has generally planar fins extending radially outward from its outer diameter. The... | 07/17/2001 |
| 6260624 | Internal production riser primary tieback An internal tieback connector for connecting a riser from a platform to a subsea wellhead having internal grooves and a casing hanger therein. The connector has an inner body which carries a lower housing adapted to land on the wellhead. A plurality of do... | 07/17/2001 |
| 6253854 | Emergency well kill method A method for installing a string of tubing in a subsea well has a provision for killing the well due to malfunction while the tubing is being installed. A running tool is attached to a tubing hanger located at the upper end of the string of tubing. A comp... | 07/03/2001 |
| 6253862 | Earth-boring bit with cutter spear point hardfacing An earth-boring bit has rolling cutters, each attached to a bit leg depending from a bit body. Each of the cutters has hardfaced, milled teeth. A spear point is located on one of the cutters. The spear point has a neck that protrudes toward the axis of th... | 07/03/2001 |
| 6248149 | Hardfacing composition for earth-boring bits using macrocrystalline tungsten carbide and spherical cast carbide A hardfacing composition for an earth-boring bit has a quantity macrocrystalline tungsten carbide particles and a quantity of spherical cast tungsten carbide pellets. The particles and pellets are contained within a metal matrix which forms the balance of... | 06/19/2001 |
| 6244348 | Well production system with a hydraulically operated safety valve A tubular wellhead member has an inner seal surface. A hydraulic passage extends through the wellhead member and terminates at a port at the seal surface. A tubing hanger having an outer mating surface lands in the wellhead member. A hydraulic line extend... | 06/12/2001 |
| 6244359 | Subsea diverter and rotating drilling head A drilling head used to seal around a drill pipe while drilling is employed in a subsea location. The drilling head has an inner body located within an outer body. At least one bearing is located between the outer body and the inner body for facilitating ... | 06/12/2001 |
| 6240812 | Triple drive open-end wrench A wrench for use in driving a hexagonal nut having a wrench head. The wrench head has upper and lower jaws rigidly joined together. The jaws have several faces that allow the wrench to engage the nut from three different positions. The faces are configure... | 06/05/2001 |
| 6237733 | Internal neutral positioning spring for railcar shock absorber A cushioning device for a railcar coupling that operates at a very high impedance when subjected to low level forces to thereby reduce the effect of slack between railcars while still providing an effective cushion for absorbing high levels of shock betwe... | 05/29/2001 |
| 6230455 | High impact flanged window screen A high strength window screen frame that includes an extruded metal frame that surrounds a window opening in a building. The frame defines an opening. A screen plate portion of the extruded metal frame is provided on the frame proximate the opening. A fla... | 05/15/2001 |
| 6228906 | Method for blending rubber or plastics materials There are disclosed method and apparatus for blending rubber or plastics in a system with particulate filler material and liquid such as oils and plasticizers, characterized in that the particulate filler material is impregnated with the liquid by a liqui... | 05/08/2001 |
| 6227222 | Closed oil liquid ring gas compression system with a suction injection port A gas compressor system draws and compresses gas from a well, wherein the gas has entrained liquid and vapor. The apparatus has a scrubber vessel for receiving the gas and separating at least a portion of the liquid. A storage vessel integral with the scr... | 05/08/2001 |
| 6223950 | Bulk feed glue gun An apparatus such as a glue gun system that utilizes solid beads of meltable material such as glue. The glue gun has a housing that contains a pervious barrier. The pervious diaphragm separates the beads from an airstream that is used to deliver the beads... | 05/01/2001 |
| 6217507 | Isolation unit An isolation unit for use with somatic healthcare has a framework of inflatable channels spaced apart, making the isolation unit self-supporting. Windows are located between the channels for allowing access to the interior of the isolation unit. At least ... | 04/17/2001 |
| 6206338 | Fail as-is hydraulic actuator A hydraulic actuator for a valve that fails as-is in the event of control line failure. The actuator has a housing carrying an actuator piston for actuating the valve open or closed. An elongate gripper shaft extends upward from the actuator piston. A col... | 03/27/2001 |
| 6202892 | Control system for glue gun A dispenser heats and dispenses a melted material through an orifice. A pusher is slidably received within an interior of a cylindrical body of the dispenser and is movable relative to the forward end of the cylindrical body. The pusher is made up of an i... | 03/20/2001 |
| 6170436 | By-catch reduction acoustic device Acoustic devices, attached to fishing nets, reduce or avoid by-catch of marine animals during fishing operations. The acoustic devices emit a deterrent signal to a particular marine animal on actuation by the approach of the animal. At least one of the de... | 01/09/2001 |
| 6152573 | Lens retainer for lighted sign A light assembly has a translucent lens which is flexibly mounted to a mounting bracket containing a light source. The lens has a series of spaced-apart members located near its upper and lower edges. The members are mounted in holes in the lens and exten... | 11/28/2000 |
| 6143988 | Coiled tubing supported electrical cable having indentations An electrical line for installation in a well for transmitting power to a well pump includes a string of coiled tubing. An electrical cable having insulated electrical conductors embedded within an elastomeric jacket extends longitudinally through the int... | 11/07/2000 |
| 6108996 | Apparatus and method for retrofitting towers exchanger An existing tower has a set of legs and a large number of lacings which secure the legs to one another. An augmentation tower is located concentrically outside of the existing tower and also has a set of legs and lacings for joining its legs together. Eac... | 08/29/2000 |
| 6105694 | Diamond enhanced insert for rolling cutter bit An earth-boring bit has a bit body and a cantilevered bearing shaft depending from the bit body. The cutter is mounted for rotation on the bearing shaft. Cutting elements are secured within holes formed in the cutter. At least some of the cutting elements... | 08/22/2000 |
| 6106876 | Foodstuffs preserving packaging A foodstuff preserving packaging comprising a packaging substrate having a layer of a bonding agent including at least one foodstuff preservative.... | 08/22/2000 |
| 6084775 | Heatsink and package structures with fusible release layer Aluminum heatsinks are plated with a solderable layer and are overplated with a solder release layer. The release layer comprises a tin-lead-indium alloy. The heatsinks are mounted on individual IC modules or banks of IC modules that are interconnected to... | 07/04/2000 |
| 6068070 | Diamond enhanced bearing for earth-boring bit An earth-boring bit is formed having a bit body in a cantilevered bearing shaft that depends from the bit body. The bearing shaft is provided with a journal bearing surface. A cutter is mounted to the bearing shaft and has a mating bearing surface for eng... | 05/30/2000 |
| 6053365 | Texture pump and cleaner assembly A mud texture system has a cart with a mud tank assembly, a mud pump, a water tank and a water pump. The mud tank assembly includes a mud tank and, in one version, a manual piston assembly. The piston assembly slides against the wall of the mud tank to sc... | 04/25/2000 |
| 6050354 | Rolling cutter bit with shear cutting gage An earth-boring bit of the rolling cutter variety is provided with hard gage inserts that protrude from the gage surface of the cutter to engage the side of the borehole for holding gage. The gage insert has a substantially flat face with sharp cutting ed... | 04/18/2000 |
| 6050339 | Annulus porting of horizontal tree A horizontal tree has a vertical bore and a horizontal production passage and is landed in a wellhead housing. A tubing hanger lands in the bore and has a vertical passage and a horizontal passage that aligns with that of the tree. A retrievable first plu... | 04/18/2000 |
| 6047776 | Enhanced control line exit An angled passageway is provided in a tubing head of a wellhead assembly for reducing an angle of bend in a control line exiting from a tubing hanger. The angled passageway extends from the bottom to the top of the tubing hanger and is angled relative to ... | 04/11/2000 |
| 6045029 | Earth-boring bit with improved rigid face seal An earth-boring bit has a bit body, at least one cantilevered bearing shaft, including a base and a cylindrical journal bearing surface extending inwardly and downwardly from the bit body, and at least one cutter mounted for rotation on the cylindrical jo... | 04/04/2000 |
| 6045296 | Tension ring for riser A tensioning device is provided for applying tension to a riser from a surface deck of an offshore oil or gas well. The tensioning device is used with a riser of the type having threads formed on an exterior surface thereof. A tension ring of the tensioni... | 04/04/2000 |
| 6040075 | Electrolytic and fuel cell arrangements There is disclosed an electrolytic or fuel cell arrangement comprising a stacking of bipolar elements (21, 31, 41), each element comprising an anode part (22) and a cathode part (23), the anode part of one element cooperating with the cathode part of the ... | 03/21/2000 |
| 6036625 | Upper body exercise equipment A neck exercise apparatus has a cord and a head strap. The cord is formed from a highly elastic, rubberized tube and has a mounting strap secured to one end. A spring clip is secured to the opposite end of the mounting strap. A foam rubber pad surrounds e... | 03/14/2000 |
| 6016880 | Rotating drilling head with spaced apart seals A drilling head has a body which lands in an external housing. The body is removably secured to the housing with an annular split ring which is moveable in response to a cam member. The body has an outer body and a rotatable inner body with an axial bore.... | 01/25/2000 |
| 6017168 | Fluid assist bearing for telescopic joint of a RISER system An undersea telescopic joint for a riser system is connected to a drilling vessel with a plurality of tensioners. The joint has a bearing with inner and outer annular mating members. A cap seals the outer member to the joint. The outer member closely rece... | 01/25/2000 |
| 6015115 | Inflatable structures to control aircraft An inflatable structure to control aircraft and a method of modifying the shape of an aircraft airfoil before and during flight, which includes inflating or deflating at least one inflatable bladder positioned on an aircraft wing. The inflatable structure... | 01/18/2000 |
| 6015266 | Reactive material reciprocating submersible pump A subsurface well system contains well bore fluid and a pumping system which is lowered into the well bore on a conduit. The pumping system is supplied with electrical power through a conductor. The pumping system has a chamber, a discharge valve, and an ... | 01/18/2000 |
| 6014643 | Interactive securities trading system A first individual enters an offer to sell a security on a first data processing system. This offer is sent to a server over a communication network which is available to the public. From the server, the offer is transmitted to additional data processing ... | 01/11/2000 |
| 5997250 | Method and apparatus for controlling pitch of an aircraft propeller A propeller pitch control apparatus for an aircraft in which the vector sum of the aircraft forward speed and the propeller rotational tip speed is a selected fraction of the speed of sound, the fraction based on percent power and altitude, to maximize ef... | 12/07/1999 |
