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| Number | Title | Issue Date |
| 5795236 | Removable thumb insert assembly for bowling balls A removable bowling ball thumb insert sleeve for installation in a bowling ball hole, having an expander within a short counterbore in the bottom portion of the thumb insert sleeve. The expander device is actuated by rotation of an actuating screw using a... | 08/18/1998 |
| 5494109 | Backflush filter system for downhole pumps A well rod pump having a filter system to remove particulate material from the fluids produced from the well and an automatic back flush system using pumped fluid to flush particulate material from the filter system in response to increased pressure diffe... | 02/27/1996 |
| 5330287 | Grader A road surface conditioning machine having an adjustable height shearing blade, side delivery blades, a gauge to indicate the depth of cut of said shearing blade, and an adjustable height striker blade to spread the material cut by the shearing blade and ... | 07/19/1994 |
| 5328648 | Method of using a composite joint infill system A pair of concrete coated pipe joints welded together end to end with a gap between the concrete coatings, the gap being filled with a fast setting elastomeric polymeric infill material, either solid or foamed, and a particulate filler material, and a met... | 07/12/1994 |
| 5304266 | Continuous loop ribbon welding system There is provided a method and apparatus for adjoining two ends of a length of impact printer ribbon to form a continuous loop of ribbon. A welding fixture, including a welding anvil, ironing anvil and ultrasonic horn are provided to join the ribbon ends.... | 04/19/1994 |
| 5303743 | Thread protection system A corrosion inhibiting system for protection of the threads of oil country tubular goods, including a vapor phase corrosion inhibitor and a liquid phase corrosion inhibitor in water solution, and a transparent thread protector. The threads may be inspecte... | 04/19/1994 |
| 5294396 | Method of makikng anode protector A method for making a protector to prevent galvanic anodes from being accidentally knocked off a pipeline in which a mold having a frusto-conical shape is placed around each end of a segmented anode, with an opening at the top of the mold opposite a gap b... | 03/15/1994 |
| 5271141 | Threaded joint with corrosion protection A corrosion inhibiting system for protection of the threads of oil country tubular goods, including a vapor phase corrosion inhibitor and a liquid phase corrosion inhibitor in water solution, and a transparent thread protector. The threads may be inspecte... | 12/21/1993 |
| 5266104 | Thread protection system A corrosion inhibiting composition for protection of the threads of oil country tubular goods, including a vapor phase corrosion inhibitor and a liquid phase corrosion inhibitor in water solution. The corrosion inhibitor may be left on the threads for use... | 11/30/1993 |
| 5227026 | Retort heat exchanger apparatus A heat exchanger including one or more rotating drums with a freely rotating helix inside the drum to move material to be heated or cooled longitudinally through the drum, as well as to help clean the surface of the drum, together with carriers to assist ... | 07/13/1993 |
| 5213750 | Method to straighten cross linked polyethylene high voltage power cable A method for forming cable which is insulated with a rigid insulating layer into a desired shape, comprising the steps of wrapping the a portion of the cable with a heater tape that houses heater elements, causing the elements to become hot and heat the c... | 05/25/1993 |
| 5209411 | Decontamination of medical waste Method for decontaminating medical waste by comminuting it and contacting the comminuted waste with an antimicrobial agent.... | 05/11/1993 |
| 5207854 | Continuous loop ribbon welding system There is provided a method and apparatus for adjoining two ends of a length of impact printer ribbon to form a continuous loop of ribbon. A welding fixture, including a welding anvil, ironing anvil and ultrasonic horn are provided to join the ribbon ends.... | 05/04/1993 |
| 5164058 | Anode protector A protector for a segmented anode encircles a pipeline. The protector includes an elastomeric polymeric structure molded in place at each end of the anode. The structure has the external shape of the frustrum of a cone with the base of the cone encircling... | 11/17/1992 |
| 5160277 | Snap-in lamp for printed circuits A lamp assembly includes a lamp socket adapted for receiving a lamp. The lamp socket has a rectangular subbase which includes at least one tang projecting upwardly from the subbase which is adapted to apply an outward force against the inner sides of the ... | 11/03/1992 |
| 5071284 | Road maintainer A road surface conditioning machine having an adjustable height shearing blade, side delivery blades, and an adjustable height striker blade to spread the material cut by the shearing blade and side delivery blades, the leading end of the shearing blade b... | 12/10/1991 |
| 5052435 | Pump valve A reciprocating pump valve and seat having mating frustoconical seating surfaces in which a resilient sealing insert on the valve is below a rigid disc portion of the valve, with a sealing surface on the insert engageable with the seating surface of the s... | 10/01/1991 |
| 4846092 | Amphibious vehicle with improved cleat design An amphibious vehicle is comprised of pontoons, a drive system and endless tracks. The endless tracks are comprised of drive chains and hollow drive cleats in the shape of truncated pyramids.... | 07/11/1989 |
| 4750583 | Gas-gun for acoustic well sounding In the art of acoustic well sounding a gas-gun for the sudden discharge of a measured quantity of compressed gas, comprised of two chambers, viz. a discharge chamber closed at one end by a poppet, and on the opposite end by a power-head, the latter a cyli... | 06/14/1988 |
| 4743172 | Belt driven pumping unit A pumping unit has a drive train comprising a very large mass including large diameter series connected sheaves, one of which is a large crank sheave. The crank sheave is directly connected to a pitman arm which oscillates a walking beam, which in turn re... | 05/10/1988 |
| 4728125 | Grip and seal mechanically locking flowline connector Apparatus for connecting together flowlines including separately actuated gripping and sealing assemblies which are actuated by hydraulic pressure but are held in actuated positions utilizing internally mounted mechanical-type mechanisms.... | 03/01/1988 |
| 4725033 | Mounting chock The present mounting chock is a system of elements designed to allow the chock to conform to non-rectilinear objects and to therefore allow greater flexibility in mounting objects to floors or decks. The invention includes right and left mounting elements... | 02/16/1988 |
| 4646871 | Gas-gun for acoustic well sounding In the art of acoustic well sounding a gas-gun for the sudden discharge of a measured quantity of compressed gas, comprised of two chambers, viz. a discharge chamber closed at one end by a poppet, and on the opposite end by a power-head, the latter a cyli... | 03/03/1987 |
| 4637474 | Tractor and towed implement with elevation control system for implement including pressure responsive valve actuator The elevation of a tool carried by an implement towed by a tractor is determined by a hydraulic motor mounted on the implement adjusting the wheel height. A servo valve mounted on the tractor responsive to line pressure controls the hydraulic motor. An op... | 01/20/1987 |
| 4571128 | I. D. Helix grooving head A grooving head for cutting an internal helical groove is mounted at one end of a tubular boring bar. The head has two cutter sockets that are axially spaced apart and are azimuthally spaced apart 180 degrees. Cutters are disposed in the sockets and means... | 02/18/1986 |
| 4487418 | Educational game device An educational apparatus is disclosed including a base, a question/answer disc, a cover disc and a pointer all disposed on a post screw stacked from bottom to top in the order listed. The base displays a circle of numbered question/answer blocks which may... | 12/11/1984 |
| 4481805 | Meter prover apparatus and method According to the invention, fluid is adapted to flow through a piston and cylinder disposed in the housing of a meter prover. The cylinder is telescopingly received within the piston. The fluid is permitted to flow into the piston and cylinder through an ... | 11/13/1984 |
| 4474239 | Sand placement Sand placement apparatus includes a well screen assembly and a sand placement tool. The sand placement tool comprises a tubing extension or stinger and a slurry conduit which includes a barrel concentrically disposed around the stinger and a tail pipe ext... | 10/02/1984 |
| 4458404 | Method of making sleeved drill pipe A one-piece metal wear sleeve, circumferentially homogeneous, is secured by epoxy to the outer periphery of a drill pipe. The inner diameter of the sleeve is less than the outer diameter of tool joints at the end of the drill pipe. The sleeve is centrifug... | 07/10/1984 |
| 4457489 | Subsea fluid conduit connections for remote controlled valves A quick attachable and detachable multiple connection between fluid conduits provided in a stepped cylindrical socket and remote actuated valve controlled fluid conduits in a stepped cylindrical plug hydraulically locked therein, the connection between th... | 07/03/1984 |
| 4456028 | Relief gate valve A valve comprises a hollow body having an inlet and an outlet, a seat ring in the outlet provides a face adapted to engage a gate, a closure mounted for movement relative to the seat ring and including a carrier having a passage therethrough in which are ... | 06/26/1984 |
| 4453271 | Protective garment The protective garment of the present invention primarily for use as protective athletic equipment includes protective gear for the shoulders, ribs, biceps, forearms, thighs, knees and shins. The protective garment is generally composed of variable pressu... | 06/12/1984 |
| 4440218 | Slurry up particulate placement tool A sand or gravel placement or packing apparatus for positioning particulates outside well screen includes pipe to conduct slurry to below the screen and receive clear liquid returning from outside the screen as the particulates accumulate upwardly, the ap... | 04/03/1984 |
| 4439954 | Spin blast tool The spin blast tool includes a housing having a tubular member rotatably disposed on bearings in the housing. A nozzle is mounted on one end of the tubular member and the other end of the tubular member is connected to a pressurized air and sand source. T... | 04/03/1984 |
| 4436118 | Sleeved drill pipe A one-piece metal wear sleeve, circumferentially homogeneous, is secured by epoxy to the outer periphery of a drill pipe. The inner diameter of the sleeve is less than the outer diameter of tool joints at the end of the drill pipe. The sleeve is centrifug... | 03/13/1984 |
| 4434863 | Drill string splined resilient tubular telescopic joint for balanced load drilling of deep holes A drill string splined resilient tubular telescopic joint for balanced load deep weel drilling comprises a double acting damper having a very low spring rate upon both extension and contraction from the zero deflection condition. Stacks of spring rings ar... | 03/06/1984 |
| 4434125 | Method for securing a wear sleeve about a drill pipe A wear sleeve having tapered ends is secured to a drill pipe by placing tapered split seal rings adjacent the ends of the sleeve to seal the annulus between the sleeve and pipe, introducing exothermically polymerically setting liquid epoxy plastics materi... | 02/28/1984 |
| 4416340 | Rotary drilling head In accordance with the present invention, the drilling head includes a body or spool having a flow bore and a removable side outlet. Upon removal of the side outlet, the drilling head will pass through most rotary tables. The drilling head further include... | 11/22/1983 |
| 4410308 | Combustion furnace and burner The combustion system includes a hearth lined with refractory, a combustion chamber formed in the refractory, an air manifold mounted on the hearth, a plurality of gas manifolds extending through the air manifold and into the combustion chamber, and a dif... | 10/18/1983 |
| 4404897 | Fluidic repeater Two fluid passages are connected through flow restrictors to a fluid supply. Downstream of the restrictors the fluid supply has a drooping pressure-load characteristic. Venting means for the fluid passages comprises vent openings therein downstream of the... | 09/20/1983 |
