Patents Represented by Attorney Roy L. Van Winkle
  • Patent number: 5024277
    Abstract: A running tool and method for the use thereof in locating apparatus in a well bore includes an elongated hollow tool body and outer sleeve encircling the body; a mandrel disposed within the body and sleeve and carrying a collet on the lower end thereof which, in the running position of the tool, is enclosed within the sleeve; and a sealed chamber having a substantially incompressible fluid therein which is metered through a flange located on a tool mandrel to control the time required to move the mandrel between the running and release positions, thus controlling the force and time required for actuation of the tool to avoid inadvertent release of the well apparatus being lowered into the well bore.
    Type: Grant
    Filed: February 6, 1990
    Date of Patent: June 18, 1991
    Assignee: Dresser Industries, Inc.
    Inventor: Thomas D. Ricles
  • Patent number: 4980874
    Abstract: An apparatus and method for maximizing the shear wave energy imparted into the soil upon the impacting of a base plate by an impact mass from a seismic generator. A seismic generator is disposed at an angle relative to a line generally perpendicular to the surface to the ground. The angle varies with soil conditions and the angle is determined by locating an accelerometer on the base plate of the generator and observing the horizontal acceleration rate as indicated by the accelerometer. If the acceleration rate exceeds a predetermined value, the anguular disposition of the generator s changed to decrease the angle either manually or automatically until the acceleration rate no longer exceeds a predetermined value.
    Type: Grant
    Filed: May 31, 1989
    Date of Patent: December 25, 1990
    Assignee: Atlantic Richfield Company
    Inventor: Mahlon G. Justice, Jr.
  • 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: 4853907
    Abstract: An improved inclinable vibratory seismic source arranged to be vehicle mounted including a base plate mounted for movement relative to the vehicle frame and for engagement with the ground. Hydraulic cylinders are provided for raising and lowering the base plate. A shaft is connected to the base plate by a U-Joint and has a vibratory mass located thereon. Also, located on the shaft is a reaction mass that is resiliently coupled to the vibratory mass and tuned so that the reaction mass remains virtually vibration free. Control apparatus is connected to the reaction mass to position the shaft and vibratory mass at a preselected azimuth and inclination.
    Type: Grant
    Filed: February 17, 1989
    Date of Patent: August 1, 1989
    Assignee: Atlantic Richfield Company
    Inventor: Marvin G. Bays
  • 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: 4848512
    Abstract: The improved seismic vibration apparatus includes variable length control means located so as to effectively and efficiently position the vibrator relative to the base plate and apparatus to isolate the vibrator from the control system and from the vehicle frame so that effective seismic vibration is imparted into the base plate and consequently into the earth.
    Type: Grant
    Filed: November 10, 1988
    Date of Patent: July 18, 1989
    Assignee: Atlantic Richfield Company
    Inventor: Tom P. Airhart
  • 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: 4781220
    Abstract: An improved fast response shut-off valve for use with pneumatic tools and the like that utilizes a solenoid for holding the valve open and utilizes fluid pressure for driving the valve closed. Further, a field suppressor may be utilized to decrease the magnetic flux strength of the solenoid coil very rapidly increasing the rapidity with which the valve can be moved from the open to closed position.
    Type: Grant
    Filed: May 4, 1987
    Date of Patent: November 1, 1988
    Assignee: Dresser Industries, Inc.
    Inventor: William S. Smith
  • Patent number: 4779477
    Abstract: A single handle control for vehicle transmission that includes a body pivotal about a longitudinal axis to move a cable controlling the forward and reverse clutches of the transmission, a control handle rotatable about an axis perpendicular to the longitudinal axis that reels and unreels a tape to move a second control cable which controls the selection of the speed range clutch in the transmission, and a neutral lock that prevents pivoting of said body to actuate the forward and reverse clutches.
    Type: Grant
    Filed: September 21, 1987
    Date of Patent: October 25, 1988
    Assignee: Dresser Industries, Inc.
    Inventor: Lee A. Horton
  • Patent number: 4779416
    Abstract: A control system for the boom and bucket operation system on a front end loader that includes an unloader valve responsive to pilot valve pressure to bypass hydraulic fluid pumped by an auxiliary pump to the reservoir while maintaining the primary pump supply to a loader valve which supplies pressure to the boom and bucket cylinders in response to the operation of pilot valves. The unloader valve bypasses the auxiliary pump flow when the pressure is below a predetermined value and when the pressure is above a second higher predetermined value.
    Type: Grant
    Filed: July 13, 1987
    Date of Patent: October 25, 1988
    Assignee: Dresser Industries, Inc.
    Inventors: Probir K. Chatterjea, Steven C. Kirkham
  • Patent number: 4772150
    Abstract: This invention provides an improved hinge joint assembly for connecting linkage components on vehicles. The assembly includes a pin having a lubricant chamber therein with appropriate seals provided to prevent loss of lubricant and the entrance of deleterious materials into the pivotal parts of the joint. The pin is attached to one mounting bracket whereby when distortion between the mounting brackets occurs, all the axial loading is taken in the one bracket avoiding damage to the joint and maintaining the integrity of the seals.
    Type: Grant
    Filed: May 8, 1987
    Date of Patent: September 20, 1988
    Assignee: Dresser Industries, Inc.
    Inventor: Lee A. Horton
  • Patent number: 4767423
    Abstract: Variable intensity rapping device for use in electrostatic precipitators include means for a mechanism increasing the force with which a drop rod impacts its associated anvil. This mechanism may include a spring or as shown a drop hammer which may be located for operation or swung into an inoperative position by a quarter turn of a drive shaft.
    Type: Grant
    Filed: January 27, 1987
    Date of Patent: August 30, 1988
    Assignee: Dresser U.K. Limited, A British Company
    Inventor: Alan P. Baylis
  • Patent number: 4767233
    Abstract: The impeller mounting apparatus includes one or more pins extending through the hub into the shaft with the pins being retained in the holes by means of a resilient metallic band of continuous construction which is forced onto the hub into grooves or recesses which prevent the dislodgement of the band and the inadvertent loosening of the impeller on the shaft.
    Type: Grant
    Filed: March 20, 1987
    Date of Patent: August 30, 1988
    Assignee: Dresser Industries, Inc.
    Inventor: John W. Erickson
  • Patent number: D312712
    Type: Grant
    Filed: February 29, 1988
    Date of Patent: December 4, 1990
    Inventor: Marylee A. Skwirz