Patents Represented by Attorney William T. Wofford
  • Patent number: 4929900
    Abstract: The resistance of a cable conductor between a measuring point and a conductive fault is measured using an electronically regulated current source and a very high resistance voltmeter in such a way as to eliminate contact and fault resistance as a source of error. Distance to the fault is determined by calculation from the known resistance per unit length.
    Type: Grant
    Filed: May 19, 1989
    Date of Patent: May 29, 1990
    Assignee: Industrial Technology, Inc.
    Inventors: Mark W. Hastings, James M. Buzbee
  • Patent number: 4673524
    Abstract: A cleaner for cleaning from hands and the like difficultly removable objectionable material such as modern catalyzed auto paint, fast drying printers ink and the like characterized by a multi-component composition that includes at twenty-five percent by weight and no more than sixty percent by weight of dibasic ester consisting essentially of an admixture of dimethyl succinate, dimethyl glutarate and dimethyl adipate; at least five percent by weight and no more than twenty-five percent by weight of dipropylene glycol methyl ether; at least five percent by weight and no more than twenty-five percent by weight of oderless mineral spirits; at least four percent and no more than nine percent by weight of triethanolamine; at leat five percent and no more than fifteen percent by weight of octylphenoxypolyethoxyethanol in which there are seven to eight moles ethylene oxide per mole of octyl phenol; at least one percent and no more than three percent by weight of nonyl phenol ethoxylate having about four moles of eth
    Type: Grant
    Filed: May 16, 1986
    Date of Patent: June 16, 1987
    Inventor: Ralph R. Dean
  • Patent number: 4654266
    Abstract: What is disclosed is a method of forming a high-strength proppant that resists the deleterious effects of high temperature saline environments characterized by the steps of forming a plurality of particles of propping agent; and coating particles with a thin high-strength covering in a fluidized bed employing chemical vapor deposition to deposit a coating substantially uniformly over all the exposed surfaces of the particles to increase durability of the particles, as well as their strength and resistance to the deleterious effects of hot saline environment. Preferably, each particle has at least one passageway formed directly therethrough for increased permeability once deposited.
    Type: Grant
    Filed: December 24, 1985
    Date of Patent: March 31, 1987
    Inventor: Joseph L. Kachnik
  • Patent number: 4646715
    Abstract: There is disclosed an extension apparatus for a damper assembly having an extension member for effectively extending the damper assembly control shaft and a securing member for securing the extension member onto the control shaft.
    Type: Grant
    Filed: July 14, 1986
    Date of Patent: March 3, 1987
    Inventor: Jerry A. Russell
  • Patent number: 4632188
    Abstract: An improvement in a subsea wellhead apparatus that includes the conventional plurality of strings of conduit suspended in a borehole penetrating subterranean formations below the bottom of a sea at which the wellhead apparatus will be placed and the conventional wellhead and accessories disposed above the bottom and the plurality of strings of conduit; the improvement comprising a first communications aperture communicating with a first annular space intermediate a desired pair of conduit strings; a sealed conduit that defines a sealed path of flow for flowing a fluid waste into the annulus intermediate the respective conduit strings; remotely operable high pressure control valves interposed in the conduit for controlling the flow of fluid between the annular spaces and a remote control for controlling the flow control valves so as to route the fluid waste to the first annular space and fractured formation communicating therewith.
    Type: Grant
    Filed: September 4, 1985
    Date of Patent: December 30, 1986
    Assignee: Atlantic Richfield Company
    Inventors: Frank J. Schuh, John Karish
  • Patent number: 4624247
    Abstract: An improvement in a knee brace for alleviating problems with tibia rotation, subluxation and migration with respect to a femur of a wearer, including conventional first and second pairs of elongate braces having their respective hinges connected at their central ends, characterized by the improvement in the form of a plurality of 8 flexible, inelastic, non-metallic bands connected at the plurality of points of fixation anteriorly and posteriorly of the respective braces for tightening to fit any leg and lie close to the leg. In a preferred embodiment, the respective plurality of straps connected to their respective D-rings anteriorly and posteriorly of the braces include a de-rotation pad for being held tightly adjacent the tibia at the inside anterior of the tibia to prevent rotation of the tibia.
    Type: Grant
    Filed: December 23, 1985
    Date of Patent: November 25, 1986
    Assignee: Medical Designs, Inc.
    Inventor: Edward I. Ford
  • Patent number: D242907
    Type: Grant
    Filed: October 2, 1975
    Date of Patent: January 4, 1977
    Assignee: Lectric Lites Company
    Inventors: Arnold O. Blaylock, Robert P. Falconer, Charles M. Campbell
  • Cot
    Patent number: D244815
    Type: Grant
    Filed: December 22, 1975
    Date of Patent: June 28, 1977
    Inventor: Bill D. Snow
  • Patent number: D245230
    Type: Grant
    Filed: November 20, 1975
    Date of Patent: August 2, 1977
    Inventor: Carl J. Kleiner
  • Patent number: D245669
    Type: Grant
    Filed: January 19, 1976
    Date of Patent: September 6, 1977
    Inventor: Robert L. Woods
  • Patent number: D247043
    Type: Grant
    Filed: January 12, 1976
    Date of Patent: January 24, 1978
    Assignee: Tandy Brands, Inc.
    Inventor: Earl J. Clark