Patents Represented by Attorney William R. Peoples
  • Patent number: 5794726
    Abstract: A rotary rock bit is formed as a rock bit body, a bearing shaft supported by the rock bit body, a rotary cutter adapted to be rotatably mounted on the bearing shaft, and at least one bearing that promotes rotation between the rotary cutter and the bearing shaft. Each bearing includes a bearing element having a steel matrix with steel-free volumes distributed therethrough. The matrix is a hypoeutectoid steel having more than about 0.40 weight percent carbon. An anti-galling alloy resides within the steel-free volumes of the steel matrix. The anti-galling alloy is a silver-copper alloy having a composition of from about 85 weight percent to about 95 weight percent silver, balance copper.
    Type: Grant
    Filed: April 24, 1996
    Date of Patent: August 18, 1998
    Assignee: Dresser Indistries
    Inventor: Kenneth O. McDowell
  • Patent number: 4950006
    Abstract: An improved latch assembly for securely latching a closure member in a position covering or uncovering an opening extending through a bulkhead of a vehicle cab or the like. The assembly includes pivotally locating a second striker pin on the bulkhead of the vehicle in such a position that it is cammed into latching engagement with the latch used for retaining the closure member in the covered position.
    Type: Grant
    Filed: February 10, 1989
    Date of Patent: August 21, 1990
    Assignee: Komatsu Dresser Company
    Inventor: Bernard J. Lambke
  • Patent number: 4871048
    Abstract: A transmission control system for actuating a hydraulically controlled vehicle transmission that includes a pair of shiftable valve members determining four range speed conditions and two shiftable valve members determining whether the vehicle is in forward or reverse. Operating in conjunction with the speed range valve members is a fill control system which provides for rapid filling of the clutches and a pressure control system which provides for the controlled rate of energization of the clutches once the clutches have been filled to eliminate shift shock.
    Type: Grant
    Filed: September 21, 1987
    Date of Patent: October 3, 1989
    Assignee: Dresser Industries, Inc.
    Inventor: Probir K. Chatterjea
  • Patent number: 4856583
    Abstract: Treating apparatus arranged to be positioned in well bores that includes a packer that is retrievable and resettable and that provides a spaced pair of sealing elements to isolate a zone in the well bore. A valve operable within the packer is moveable among positions wherein fluid can be circulated through the operations, an open position wherein the treating fluids can be injected into the zone to be treated, and a closed position wherein the selected zone can be sealed off.
    Type: Grant
    Filed: November 20, 1987
    Date of Patent: August 15, 1989
    Assignee: Dresser Industries, Inc.
    Inventors: Donald R. Greenlee, Willie C. Skinner, Sr.
  • Patent number: 4848459
    Abstract: A packer setting tool, a packer assembly and an attached liner assembly are lowered into a well bore at a desired depth to fix the liner therein. Cement is pumped down a tubing string, through the packer, the lining, check valves and forced upwardly in the annulus of the well bore. The pumped cement is followed by a non-setting liquid to clear the internal tubular structure. The packer assembly is then set in the wet cement of the annulus to provide an additional fluid seal in the well bore. The packer setting tool is released and the cement is allowed to harden and fix the linear and the packer assembly within the well bore.
    Type: Grant
    Filed: April 12, 1988
    Date of Patent: July 18, 1989
    Assignee: Dresser Industries, Inc.
    Inventors: Henry W. Blackwell, Clifford L. Talley, Rodger D. Lacy
  • Patent number: 4846677
    Abstract: A buttress (52) for buttressing an axial end (34) of a partition (36) in a multiple-chamber heat exchanger (28) comprises an integral solid cast from a refractory material. A thick axial end (55) of the solid is provided for compressive engagement with an end (34) of the partition (36). A thin axial end (56) opposite the thick end (55) is provided for compressive engagement to a kiln shell liner (54). A radially outer surface (77) engages an inner surface (14) of the kiln shell (12). A radially inner surface (58) of the buttress (52) slopes generally from the thick end (55) to the thin end (56), such that compressive force exerted on the thick end by the partition (36) is transmitted through the buttress (50) to a liner (54) of the kiln shell (12).
    Type: Grant
    Filed: August 11, 1988
    Date of Patent: July 11, 1989
    Assignee: Dresser Industries, Inc.
    Inventors: Raymond J. Crivelli, Roger Snellman
  • Patent number: 4845468
    Abstract: A brake condition warning system for liquid cooled brakes that includes an indicator showing whether pressure in the cooling liquid passing through the erodable brake members has exceeded an acceptable valve which corresponds to an excessive amount of brake wear. Also, there may be included temperature sensitive means for sensing the temperature of the liquid in the chamber preventing the pressure indication until the cooling liquid has reached a predetermined operating temperature thus preventing false indications of excessive wear due to the viscosity of cold cooling liquid.
    Type: Grant
    Filed: January 21, 1988
    Date of Patent: July 4, 1989
    Assignee: Dresser Industries, Inc.
    Inventor: Robert A. Stark
  • Patent number: 4830103
    Abstract: A packer setting tool is disclosed for providing quick and reliable release thereof from a well casing packer. The setting tool is adapted for lowering the packer assembly within the casing. The setting tool is rotated by a drill string to release an upper set of packer assembly slips into engagement with the well casing. The packer setting tool is then lifted, thereby deploying a rubber sealing boot and setting the upper and a lower set of slips into permanent engagement with the casing. The packer setting tool is then again rotated, whereupon a shear connection is released and the setting tool can be removed from the packer and out of the well bore.
    Type: Grant
    Filed: April 12, 1988
    Date of Patent: May 16, 1989
    Assignee: Dresser Industries, Inc.
    Inventors: Henry W. Blackwell, Clifford L. Talley, Rodger D. Lacy
  • Patent number: 4820115
    Abstract: An improved open impeller for centrifugal compressors or the like that includes a hub portion and a disc portion having front and rear surfaces. A plurality of circumferentially spaced blades are positioned on the front surface of the impeller disc. A plurality of circumferentially spaced vanes are located on the rear suface of the disc and generally located between adjacent ones of the blades. The vanes are elongated and have their chords disposed at an angle relative to a radius of the circle on which the vanes are disposed to generate a pressure preventing gas exiting the blades from passing behind the rear surface of the impeller. Also, the vanes may be angled relative to the rear surface to produce a thrust counteracting the thrust produced by the impeller blades. The arrangement of the vanes is such that rigidity is provided to the impeller disc reducing the vibration of the disc when rotating at high speeds.
    Type: Grant
    Filed: November 12, 1987
    Date of Patent: April 11, 1989
    Assignee: Dresser Industries, Inc.
    Inventor: Phiroze Bandukwalla
  • Patent number: 4817667
    Abstract: A metering regulator for air tools which includes a ported sleeve adjustable to control the volume of air flowing therethrough while simultaneously controlling the shut-off pressure of the air tool by adjusting the biasing force exerted on a differential pressure actuated pressure regulating member.
    Type: Grant
    Filed: February 3, 1988
    Date of Patent: April 4, 1989
    Assignee: Dresser Industries, Inc.
    Inventor: Jack L. Hagar
  • Patent number: 4791992
    Abstract: Disclosed is a packer (32) responsive to a first hydraulic pressure for setting the packer (32) within a casing (16), and responsive to a second higher pressure for releasing the packer (32) from the casing (16). The first pressure moves an inner piston (94) which shears a screw (96) to thereby apply a compressive force to elastomeric bands (66, 68). The elastomeric bands (66, 68) bow outwardly and seal the packer (32) to the casing (16). A toothed ratchet ring (135) engages with respective teeth (114,122) of the inner piston (94) and an outer cylinder piston (90) to permit one-way movement of the inner piston (94). The packer (32) is thereby set and the hydraulic pressure can be reduced. The packer (32) is released from its sealing engagement with the casing (16) by applying a second greater hydraulic pressure which shears a screw (92), thereby allowing the outer cylindrical piston (90) to move downwardly.
    Type: Grant
    Filed: August 18, 1987
    Date of Patent: December 20, 1988
    Assignee: Dresser Industries, Inc.
    Inventors: Donald R. Greenlee, Michael W. Pitts
  • Patent number: 4776393
    Abstract: Perforating gun automatic release mechanism wherein the perforating gun is linked to the drilling string by a coupling member. The coupling member includes a plurality of collet fingers, by which said coupling member is attached to the drilling string. The heads of the collet fingers, when inserted into the bottom of the drilling string engage a circumferential groove therein. A slidable locking sleeve, coaxially disposed within the coupling member prevents the inward radial movement necessary for the collet finger heads to disengage the groove. The locking sleeve sits on a slidable piston, which is contained inside the coupling member on top of the explosive charge which detonates the perforating gun. Upon detonation, the resulting shock wave traveling upward pushes the piston and locking sleeve to a position where the collet finger heads are free to disengage the groove, which the weight of the perforating gun then causes, dropping the gun, coupling member and all attachments away from the drilling string.
    Type: Grant
    Filed: February 6, 1987
    Date of Patent: October 11, 1988
    Assignee: Dresser Industries, Inc.
    Inventors: Donald R. Forehand, Robert A. Turney, Max M. Murray, Thomas D. Ricles
  • Patent number: 4770246
    Abstract: Method and apparatus for firing perforating apparatus in a borehole. A pressure actuated firing assembly is run into the borehole on th eend of a cable and latched onto a perforating apparatus. The cable is removed and pressure is applied to the tubing annulus. At a predetermined pressure the firing asembly is armed. After arming pressure is released from the tubing annulus during a time delay period before the firing assembly impacts a percussion firing head to thereby detonate the perforating apparatus.
    Type: Grant
    Filed: August 11, 1986
    Date of Patent: September 13, 1988
    Assignee: Dresser Industries, Inc.
    Inventor: Richard M. Ward
  • Patent number: 4743513
    Abstract: Wear-resistant materials and articles, wherein an amorphous material having a hardness of greater than about 1600 VHN is utilized to protect wear-susceptible portions of substrates or is itself made into a wear-resistant article. Amorphous materials having hardnesses greater than about 1600 VHN are found to have surprisingly great wear resistance and can be used to prepare wear-resistant articles. Particularly satisfactory results have been obtained with metal-metalloid systems such as W--Ru--B, Re--Mo--B, Mo--Ru--B, and Co--Nb--B materials.
    Type: Grant
    Filed: June 10, 1983
    Date of Patent: May 10, 1988
    Assignee: Dresser Industries, Inc.
    Inventor: David M. Scruggs
  • Patent number: 4725512
    Abstract: A process for protecting an article from wear, wherein a frictionally transformable material is provided at the surface of the article, and then the surface of the article is subjected to frictional wear. The wear transforms the outermost layer of the material to the amorphous state, which is more wear resistant and corrosion resistant than is the material in its nonamorphous state. As the material is worn away gradually, the frictional transformation continues, thereby replenishing the amorphous outermost layer, so that a protective outermost layer remains.
    Type: Grant
    Filed: June 8, 1984
    Date of Patent: February 16, 1988
    Assignee: Dresser Industries, Inc.
    Inventor: David M. Scruggs
  • Patent number: 4710235
    Abstract: A process for bonding together two or more pieces of material, at least one of which is an amorphous material, wherein an intermediate interlayer is placed between the two pieces and the assembly is hot pressed at a temperature above the melting point of the interlayer but below the crystallization temperature of the amorphous piece. The composition of the interlayer is chosen so that the elements diffusing into the pieces being bonded are compatible with retention of the amorphous structure. When the bonding operation is carried to completion, no evidence of the interlayer as a separate phase remains. Alternatively, the bonding operation may be halted before completion and the interlayer will remain as a separate, observable phase. For bonding hard metal amorphous materials, alloys of aluminum with silver, gold, silicon and germanium, and alloys of gold with silicon, with the addition of fluxing elements such as phosphorus and boron, have been found to provide particularly satisfactory results.
    Type: Grant
    Filed: March 5, 1984
    Date of Patent: December 1, 1987
    Assignee: Dresser Industries, Inc.
    Inventor: David M. Scruggs
  • Patent number: 4687491
    Abstract: Disclosed is a catalytic combustor and systems for the boilerless stoichiometric production of a working fluid such as steam from a burn-mixture comprised of a carbonaceous fuel and a diluent. In a preferred burn-mixture, the diluent includes a first portion taken from an emulsion of the fuel and water mixed in a thermally self-extinguishing mass ratio, and a second portion taken in an amount from combustion products of a mixture previously combusted to heat the resulting burn-mixture so it combusts in the presence of a catalyst at an adiabatic flame temperature between upper and lower stability limits of the catalyst. Production of the steam is by a controlled substantially stoichiometric process utilizing a combustor to provide steam over a wide range of heat release rates, temperatures and pressures for steam flooding an oil bearing formation.
    Type: Grant
    Filed: February 23, 1984
    Date of Patent: August 18, 1987
    Assignee: Dresser Industries, Inc.
    Inventor: James A. Latty
  • Patent number: 4683810
    Abstract: A metal and plastic two-stage composite piston including an annular metal cup, a hollow plastic annular core bonded about the periphery of the cup, a plastic high pressure piston bonded to the interior of the cup, and a plastic low pressure piston bonded about the periphery of the core at the base of the high pressure piston in a fashion such that substantially all of the pressure loads on the pistons are carried directly by the cup and the core of the composite piston.
    Type: Grant
    Filed: December 13, 1984
    Date of Patent: August 4, 1987
    Assignee: Dresser Industries, Inc.
    Inventor: Khurshid A. Afimiwala
  • Patent number: 4648820
    Abstract: Apparatus for continuous preparation of rapidly cooled metal particles from a molten source metal by quenching into a quench liquid, wherein a cylindrical quench chamber rotates about its axis to hold the quench liquid against the inner wall thereof under centrifugal force, and a spinner disk within the quench chamber rotates about the same axis to spin off molten metal droplets into the quench liquid. Quench liquid is supplied at one end of the quench chamber and removed at the other end continuously, at the same time drawing off the solidified metal particles to an external recirculation loop where the particles are separated from the quench liquid. The spinner disk has an upper surface including a generally conical protruding tip. Metal from a source metal supply tube is directed downwardly onto the apex of the tip to form a laminar flow along the upper surface of the spinner disk.
    Type: Grant
    Filed: November 14, 1985
    Date of Patent: March 10, 1987
    Assignee: Dresser Industries, Inc.
    Inventors: David M. Scruggs, Eric N. Mickelson
  • Patent number: 4621031
    Abstract: A composite material bonded by an amorphous metal. In one embodiment, a bonded piece is bonded to a substrate by a layer of amorphous metal interposed between the piece and the substrate. In another embodiment, a bonded composite material is formed with pieces of a second phase distributed throughout the volume of an amorphous matrix. In both embodiments, the second component of the composite is preferably a very hard material of low ductility, so that the composite material is useful in tooling applications. The solid composite material is formed by solid state processing, wherein the pieces are placed in contact and then consolidated at a temperature which does not exceed the crystallization temperature of the amorphous metal.
    Type: Grant
    Filed: November 16, 1984
    Date of Patent: November 4, 1986
    Assignee: Dresser Industries, Inc.
    Inventor: David M. Scruggs