Patents Represented by Law Firm Pravel & Wilson
  • Patent number: 4007705
    Abstract: Apparatus for temporary positioning about a cylindrical object such as an underwater pipeline or the like for mounting and indexing a tool across the surface of the pipeline for treating same.
    Type: Grant
    Filed: December 20, 1974
    Date of Patent: February 15, 1977
    Assignee: DND Corporation
    Inventors: C. Richard Sherer, Jack Webber
  • Patent number: 4007790
    Abstract: A new and improved apparatus and method for lowering the apparatus downwardly in a drill string on a wireline to releasably engage a recess in a threaded joint or collar of the drill string to prevent further downward movement of the apparatus and to thereafter detonate an explosive by manipulating a wireline actuated jar with repeated downward blows for exerting a jarring force to the joint as a result of the explosion to release the threads at the joint upon simultaneous application of a back-off torque to the drill string. The apparatus can be released and removed from the well without breaking or damaging the collar locating and supporting portion of the apparatus.
    Type: Grant
    Filed: March 5, 1976
    Date of Patent: February 15, 1977
    Inventor: Jack A. Henning
  • Patent number: 4006795
    Abstract: Apparatus for conducting seismic reflection surveys from oil tankers or other bulk liquid carriers in the course of their normal journeys. Seismic sources and detector apparatus are mounted in the ballast tanks. Pulse compression techniques may be used, and may take the form of a mechanical flail acting on the hull of the ship.
    Type: Grant
    Filed: April 27, 1972
    Date of Patent: February 8, 1977
    Assignee: Seiscom Delta Inc.
    Inventor: Nigel A. Anstey
  • Patent number: 4003456
    Abstract: A reeling apparatus for supplying, receiving and storing a section of electrical cable having substantially rigid terminal connectors at the ends of the section, wherein apparatus are provided for releasably securing at least one of the electrical cable terminal connectors with a rotatable reel of the apparatus for rotation therewith as the electrical cable is wound on and unwound from the reel, and for releasing the releasably secured terminal connector from the reel upon the unwinding of the cable therefrom to thereby release the entire section of the cable from the reel.
    Type: Grant
    Filed: October 9, 1975
    Date of Patent: January 18, 1977
    Assignee: General Electric Company
    Inventors: Roy H. Cullen, Joshua M. Jackson, Terry V. Jones
  • Patent number: 4003435
    Abstract: A method and apparatus for handling electrical cable sections having substantially rigid connectors at the end of each section, wherein the entire fixed length of one or more sections of cable are positioned in and removed from a well bore by rapidly inserting and withdrawing a section of cable employing a rig floor assembly in combination with a cable supply and storage apparatus which are respectively provided with means for preventing excessive bending of the cable terminal connectors and the cable conductor at an interface between the conductor and connectors to prevent damage thereto during insertion and removal.
    Type: Grant
    Filed: October 9, 1975
    Date of Patent: January 18, 1977
    Assignee: General Electric Company
    Inventors: Roy H. Cullen, Joshua M. Jackson, Jim Witovek, Jr., Terry V. Jones
  • Patent number: 4001996
    Abstract: Prefabricated insulating blocks are formed from ceramic fiber blankets folded into plural folds, with adjacent layers being needled together to intermingle the fibers of adjacent layers to form composite blocks. The blankets are mounted to attachment channels by support beams, mounted within folds in the blankets, and the folds of the blanket surround and enclose the support beams to protect them from heat and corrosive gases in the furnace.
    Type: Grant
    Filed: August 11, 1975
    Date of Patent: January 11, 1977
    Assignee: J. T. Thorpe Company
    Inventor: Carlisle O. Byrd, Jr.
  • Patent number: 4002230
    Abstract: A new and improved print head apparatus for applying ink in a selectively controlled matrix of dots to form letters, numbers, characters and symbols onto packages, containers and the like, which is compact in size and adapted for rapid, accurate movement with controllable ink flow therethrough.
    Type: Grant
    Filed: July 9, 1975
    Date of Patent: January 11, 1977
    Assignee: Houston Engineering Research Corporation
    Inventors: Joseph L. Schweppe, Jerry L. Miille, Kenneth R. Rhodes
  • Patent number: 4000590
    Abstract: A grille assembly readily mountable with a window frame for securing a window against unauthorized entry. The grille includes a plurality of horizontal members, each of which has longitudinally spaced, vertical openings. A plurality of vertical bars extend into the vertical openings of the horizontal members, and concealed mounting assemblies mount the horizontal members with the window frame.
    Type: Grant
    Filed: August 4, 1975
    Date of Patent: January 4, 1977
    Inventor: Carl Kordewick
  • Patent number: 4000061
    Abstract: An enclosed particular dry product is conveyed through a conduit by a gaseous fluid formed by a vacuum blower. Metered hoppers feed the product into the conduit. A cyclone removes the product from the fluid and conveys the same to a separating screen. The desired size product is recovered and passed through a flexible sock to minimize breakage and loaded into a vessel. The undesired size is fluid conveyed to a recovery receptacle.
    Type: Grant
    Filed: August 29, 1975
    Date of Patent: December 28, 1976
    Assignee: Browning-Ferris Industries, Inc.
    Inventors: Thomas J. Bowling, Glenn W. Ferguson
  • Patent number: 3995312
    Abstract: A color dot display and method of forming same by applying colors to dot areas within a matrix of cells in accordance with a color code defining the number of dot areas in the cells, and their locations in the cells, to receive the colors. The proportion of dots of a particular color in a cell defines the representation or saturation of that color in the cell, while the superposition, whether visual or physical or both, of the dots of the various component colors in a cell defines the apparent or resulting color of the cell.
    Type: Grant
    Filed: February 28, 1975
    Date of Patent: November 30, 1976
    Assignee: Seiscom Delta Inc.
    Inventors: Clyde W. Hubbard, Jr., Emmett J. Klein, Jr., Michael J. Castelberg, Nigel A. Anstey
  • Patent number: 3993136
    Abstract: Disclosed is a method of utilizing an apparatus for effecting operation of valve closure element in a subsurface safety valve. Preferably, a ball-type closure element is at least partially spaced from sealing engagement with a valve seat for equalizing well pressure about the ball closure element and minimizing frictional resistance of the ball element to operating rotation prior to effecting rotation of the ball element about a pair of substantial fixed ball element support members concentrically engaging the ball element on opposite sides thereof. Rotating cams move a lower seat from the ball element in response to initial reciprocating movement of the valve operator prior to effecting partial spacing and rotating open the ball element.
    Type: Grant
    Filed: August 25, 1975
    Date of Patent: November 23, 1976
    Assignee: Hydril Company
    Inventor: James D. Mott
  • Patent number: 3993135
    Abstract: A thermal process for recovering heavy viscous petroleum from a subterranean hydrocarbon formation having low relative permeabilities to water and oil wherein a well bore penetrating the formation and surrounding subterranean strata are initially heated by injecting a heated fluid containing steam into the well and simultaneously venting a portion of the fluid at the surface to lift any condensed liquids forming in the well bore towards the surface to keep the well essentially free of condensed fluids. The well injection and venting are continued until the well and surrounding subterranean strata are heated sufficiently for the heated fluid to be injected into the formation without condensed liquids forming in the well at a rate greater than the formation can accept. The heated fluid is then injected directly into the formation at a high injection rate to raise the formation temperature to a desired level, followed by withdrawing the resulting heated petroleum therefrom through the well.
    Type: Grant
    Filed: July 14, 1975
    Date of Patent: November 23, 1976
    Assignee: Carmel Energy, Inc.
    Inventors: John S. Sperry, Richard W. Krajicek, Dudley P. South, Jr.
  • Patent number: 3989330
    Abstract: A kelly cock assembly adapted for connection within a tubular drill string above or below the kelly joint for controlling the flow of fluids through the drill string, wherein an electrical conductor means is provided for detachable interconnection with one or more electrical cables provided in the drill string for uninterrupted transportation of electrical energy between a location at the surface and a subsurface location without interferring with fluid flow control by the valve means of the assembly.
    Type: Grant
    Filed: November 10, 1975
    Date of Patent: November 2, 1976
    Inventors: Roy H. Cullen, David E. Young
  • Patent number: 3987849
    Abstract: A subsurface safety valve well tool securable in a well conduit for controlling flow of fluid through the bore of the conduit. An increase or decrease in the well pressure from the normal flowing pressure of the well operates a rotatable ball valve to block flow of fluid through the conduit. Increasing and then decreasing the pressure in the bore above the ball valve rotates the valve to enable flow of fluid through the conduit.
    Type: Grant
    Filed: April 9, 1975
    Date of Patent: October 26, 1976
    Assignee: Hydril Company
    Inventor: James D. Mott
  • Patent number: 3987858
    Abstract: An improved hydromechanical drilling jar for applying upward and downward jarring blows to an object stuck in a well wherein the jar comprises a mechanically operated jar section which is connected with a hydraulically operated jar section by flexible tubular connector means for providing flexibility therebetween for relieving bending moments on the jar sections during use. The jar sections are separable for ease in storage and transportation and may be relatively positioned in a drill string as desired.
    Type: Grant
    Filed: June 23, 1975
    Date of Patent: October 26, 1976
    Assignee: Bowen Tools, Inc.
    Inventors: Damon T. Slator, Archie W. Peil, Thomas R. Bishop
  • Patent number: 3986954
    Abstract: A method and apparatus for clarifying liquids contaminated with suspended materials that do not readily separate by gravity, is disclosed. A flowing stream of the contaminated liquid is initially passed to a mixing zone at a predetermined flow velocity and intimately mixed with a gas stream to form a multiphase liquid-contaminant-gas stream. The flow velocity of the multiphase stream is then alternately increased and decreased with substantially simultaneous decrease and increase of pressure to ultimately disperse and dissolve the gas stream throughout the liquid and contaminant phases of the stream.
    Type: Grant
    Filed: May 19, 1975
    Date of Patent: October 19, 1976
    Assignee: Al George, Inc.
    Inventors: Albert L. George, Jerry C. Manning
  • Patent number: 3986945
    Abstract: A device is disclosed for the continuous application of strip-, ribbon- or spot-shaped coatings of metal layer patterns, particularly of a noble metal such as gold, to an electrically conductive tape comprising a rotatable wheel with two or more parts that define an electrolysis chamber with an outlet gap at the periphery thereof, along the surface of which wheel the tape to be treated is passed in operation to close the chamber, and which one or more parts that define the electrolysis chamber is axially displaceable.
    Type: Grant
    Filed: January 21, 1975
    Date of Patent: October 19, 1976
    Assignee: Galentan AG
    Inventor: Francis Xaverius Noz
  • Patent number: 3985384
    Abstract: A new and improved apparatus for a grapple or clam shell bucket having a plurality of pivoted tines or bucket elements which are actuated to a closed or holding position by a first predetermined hydraulic pressure and which are held in closed position by a second predetermined pressure, and wherein the second predetermined pressure has a value lower than the first predetermined pressure to provide sufficient flexibility to a hydraulic hose supplying the hydraulic pressures to facilitate reeling the hose while maintaining the grapple or clam shell bucket in closed position.
    Type: Grant
    Filed: September 29, 1975
    Date of Patent: October 12, 1976
    Assignee: McGinnes Manufacturing Company
    Inventor: Oscar W. Hahn
  • Patent number: 3980558
    Abstract: A novel method for permanently disposing of liquid or semi-liquid wastes containing soluble toxic materials to prevent the toxic materials from being leached into the surrounding environment is disclosed. The process comprises admixing the liquid or semi-liquid waste, such as aqueous sludge from the manufacture of phosphoric acid containing soluble and insoluble arsenic, sulfur and like toxic compounds, with a solidifying agent consisting essentially of a hydraulic cement in amounts sufficient to provide a fluid mass that will set to a contiguous rock-like solid upon standing, and then allowing the admixture to set to a contiguous rock-like solid mass which is insoluble in water. By the inventive process, the soluble and insoluble toxic materials of the waste are wholly entrapped in the contiguous rock-like solid mass which thereby prevents them from being leached into the surrounding environment when exposed to ambient moisture.
    Type: Grant
    Filed: July 7, 1975
    Date of Patent: September 14, 1976
    Assignee: Browning-Ferris Industries, Inc.
    Inventor: Steve R. Thompson
  • Patent number: 3978596
    Abstract: A foot sandal and method for making same, the sandal having a laminated platform having an upper and a lower layer, stirrup strapping members mounted with the platform for securing the platform to the foot with the stirrup strapping members including a loop extending through the upper layer of the laminated platform and a toe securing member adapted to be positioned adjacent toes of the foot for securing the stirrup strapping members adjacent the toe end of the laminated platform to the foot.
    Type: Grant
    Filed: November 24, 1975
    Date of Patent: September 7, 1976
    Inventors: Dwight C. Brown, Kevin B. Brown