Patents Represented by Attorney Ewan C. MacQueen
  • Patent number: 5188517
    Abstract: A hydraulically activated double-acting piston pump comprising a pump body with an inlet and outlet for the production fluid, and an inlet and outlet for the hydraulic fluid. Thereby eliminating the need for sucker rod strings in pumped wells. A partition located between two coaxial hollow cylinders for keeping the production fluid separate from the hydraulic fluid.
    Type: Grant
    Filed: February 5, 1992
    Date of Patent: February 23, 1993
    Inventor: Charles H. Koster
  • Patent number: 5048702
    Abstract: Directed to a transportable rack for handling bakery goods such as bread which is made of moldable plastic, has a base trolley on which are mounted modular stackable shelf units having longitudinally extending parallel side rails adapted to hold bakery goods for transport, and separating members outboard each shelf unit which provide vertical separation between the shelves and transmit the weight of the shelf and its contents downward so that each shelf is light, with the separating members forming a vertical load-bearing and bracing column on each side of the rack.
    Type: Grant
    Filed: March 1, 1990
    Date of Patent: September 17, 1991
    Inventor: William J. Maloney
  • Patent number: 4865127
    Abstract: The invention relates to a method and apparatus for relining bores such as oil wells, using multiple layers of spiral wrapped, resilient lining material which expands to form a continuous liner for the bore.
    Type: Grant
    Filed: July 25, 1988
    Date of Patent: September 12, 1989
    Assignee: Nu-Bore Systems
    Inventor: Charles H. Koster
  • Patent number: 4657601
    Abstract: The invention contemplates a thermomechanical process applicable to beryllium copper alloys consisting essentially of about 0.2 wt % to about 0.7 wt % beryllium; from about 1.0 wt % to about 3.5 wt % nickel and cobalt in the aggregate, where nickel comprises at least about 1.0 wt %; up to about 1.0 wt % zirconium; up to about 0.005 wt % lead; up to about 0.1 wt % magnesium; up to about 1.5 wt % silver; up to about 0.5 wt % incidental impurities including lead; and the balance essentially copper; which process comprises solution annealing said alloy at a temperature of at least about 90% of the incipient melting point of the alloy expressed in degrees Fahrenheit, cold working the solution treated alloy to reduce the section thickness thereof at least about 60% or much more, and then aging the alloy to produce therein an improved combination of properties including strength, ductility, formability and conductivity.
    Type: Grant
    Filed: August 8, 1985
    Date of Patent: April 14, 1987
    Assignee: Brush Wellman Inc.
    Inventor: Amitava Guha
  • Patent number: 4599120
    Abstract: This invention is directed to the treatment of copper beryllium alloys, and to articles and parts made therefrom, containing special small amounts of beryllium and nickel, e.g., about 0.05% to about 0.5% beryllium and about 0.05% to about 1% nickel where cobalt may be substituted for up to about one-half of said nickel content at a substitution ratio of about 1 part by weight cobalt for about 2 parts by weight nickel, which imparts to these alloys a superior combination of stress relaxation resistance, formability, ductility, conductivity and strength by the process of solution annealing, cold working at least about 50% or at least about 70% or 90% or more and age hardening.
    Type: Grant
    Filed: February 25, 1985
    Date of Patent: July 8, 1986
    Assignee: Brush Wellman Inc.
    Inventors: Nathan L. Church, W. Raymond Cribb, John C. Harkness
  • Patent number: 4565586
    Abstract: This invention is directed to the treatment of copper beryllium alloys, and to articles and parts made therefrom, containing special small amounts of beryllium and cobalt, e.g., about 0.05% to about 0.5% beryllium and about 0.05% to about 2% cobalt, which imparts to these alloys a superior combination of stress relaxation resistance, formability, ductility, conductivity and strength by the process of solution annealing, cold working at least about 50% or at least about 70% or 90% or more and age hardening.
    Type: Grant
    Filed: June 22, 1984
    Date of Patent: January 21, 1986
    Assignee: Brush Wellman Inc.
    Inventors: Nathan L. Church, W. Raymond Cribb, John C. Harkness
  • Patent number: 4551187
    Abstract: This invention is directed to age hardenable copper beryllium alloys, and to articles and parts made therefrom, which contain special small amounts of beryllium and cobalt; e.g., about 0.2% to about 0.5% beryllium and about 0.2% to about 0.4% cobalt, which, when finished by solution treating, cold working at least about 50% or at least about 70% and age hardening have a superior combination of stress relaxation resistance, formability, ductility, conductivity and strength.
    Type: Grant
    Filed: June 8, 1984
    Date of Patent: November 5, 1985
    Assignee: Brush Wellman Inc.
    Inventors: Nathan L. Church, W. Raymond Cribb, John C. Harkness
  • Patent number: 4445944
    Abstract: Directed to an overaging heat treatment applied to age-hardenable nickel-cobalt-iron controlled expansion alloys so as to contribute high notch strength at temperatures on the order of about 1000.degree. F. thereto.
    Type: Grant
    Filed: September 17, 1981
    Date of Patent: May 1, 1984
    Assignee: Huntington Alloys, Inc.
    Inventors: Darrell F. Smith, Jr., Edward F. Clatworthy
  • Patent number: 4445943
    Abstract: Directed to an overaging heat treatment applied to age-hardenable nickel-iron controlled expansion alloys so as to contribute high notch strength at temperatures on the order of about 1000.degree. F. thereto.
    Type: Grant
    Filed: September 17, 1981
    Date of Patent: May 1, 1984
    Assignee: Huntington Alloys, Inc.
    Inventors: Darrell F. Smith, Jr., Edward F. Clatworthy
  • Patent number: 4439498
    Abstract: A covered electrode for welding chloride resistant stainless steel of the type containing about 0.04% carbon, 20% chromium, 24% nickel, 5% molybdenum, and balance iron. The covered electrode provides the capability for producing substantially defect-free stainless steel weld deposits that offer excellent resistance to crevice corrosion, as well as general corrosion in chloride containing environments.
    Type: Grant
    Filed: August 21, 1978
    Date of Patent: March 27, 1984
    Assignee: The International Nickel Company, Inc.
    Inventor: Edward P. Sadowski
  • Patent number: 4415356
    Abstract: An autogeneous smelting process for suldie materials using a roasted portion blended with unroasted material in the presence of a flux.
    Type: Grant
    Filed: October 13, 1981
    Date of Patent: November 15, 1983
    Assignee: Inco Limited
    Inventors: Grigori S. Victorovich, Malcolm C. Bell
  • Patent number: 4402995
    Abstract: A method for reducing passivation of a lithium anode used in a cell having a liquid thionyl chloride cathode is disclosed, characterized in that the anode is coated before the assembly of the cell with a solution of an alkyl 2-cyanoacrylate, a solvent, and lithium perchlorate.
    Type: Grant
    Filed: January 28, 1982
    Date of Patent: September 6, 1983
    Assignee: Ray-O-Vac Corporation
    Inventor: Niles A. Fleischer
  • Patent number: 4401630
    Abstract: The metal content of nickel-cobalt mixed sulfide slurries is recovered by atmospheric oxidation leaching, thereafter removing dissolved copper by metathesis with further mixed sulfide feed, treating the filtrate after liquid-solids separation with ammonia to selectively precipitate cobalt, separating the cobalt precipitate and working up the resulting filtrate to recover nickel.
    Type: Grant
    Filed: August 31, 1981
    Date of Patent: August 30, 1983
    Assignee: INCO Ltd.
    Inventors: Victor A. Ettell, Juraj Babjak
  • Patent number: 4397964
    Abstract: An unsupported particulate catalyst especially useful for methanation reactions is prepared by a method comprising fluid-bed roasting agglomerates of nickel sulfide to form a particulate precursor material which can be reduced to composite particles consisting essentially of a nickel-oxide core with a then coherent adherent layer of nickel thereon, the reduced particles being characterized at the surface by the presence of microcapillary pores interconnecting with each other and the outer surface of the particles.
    Type: Grant
    Filed: November 18, 1981
    Date of Patent: August 9, 1983
    Assignee: The International Nickel Company, Inc.
    Inventors: John K. Pargeter, Umar M. U. Ahmad
  • Patent number: 4394366
    Abstract: This invention is concerned with a process for dissolving oxidic trivalent cobalt compounds in hydrochloric acid while avoiding the generation of chlorine. It includes the following steps (a) slurrying in water the trivalent cobalt compound to be dissolved and (b) treating the resulting slurry with a reduction agent from the group consisting of methanol, formaldehyde and formic acid and with hydrochloric acid. The contact of the hydrochloric acid with the slurry should occur in the presence of the reducing agent. The rate of acid addition should be controlled to maintain the slurry at a pH above 1.
    Type: Grant
    Filed: May 4, 1981
    Date of Patent: July 19, 1983
    Assignee: Inco Limited
    Inventors: Victor A. Ettel, Eric A. Devuyst, Alexander Illis
  • Patent number: 4386976
    Abstract: An oxide dispersion-strengthened, nickel-base alloy containing special amounts of chromium, aluminum, tungsten, molybdenum and yttria has a combination of strength properties over a range of temperatures, together with substantial corrosion resistance.
    Type: Grant
    Filed: June 26, 1980
    Date of Patent: June 7, 1983
    Assignee: Inco Research & Development Center, Inc.
    Inventors: Raymond C. Benn, LeRoy R. Curwick, Kenneth R. Andryszak
  • Patent number: 4384940
    Abstract: Metal values are recovered from mattes containing nickel, cobalt and iron by first suspending the mattes in water, oxygen pressure leaching and then chlorine leaching the residue from the oxygen leach.
    Type: Grant
    Filed: January 21, 1982
    Date of Patent: May 24, 1983
    Assignee: Inco Limited
    Inventors: David L. Jones, Kohur N. Subramanian
  • Patent number: 4358892
    Abstract: A composite electrode having a structural electrode member with at least a portion of one surface of the electrode member constructed from a continuous matrix of an anodically passivatable metal infiltrated by a metal capable of forming an electroconductive oxide and having the infiltrating metal at the electrode surface oxidized such that an electric current path is provided through the oxidized surface of the matrix metal. In one embodiment the matrix metal is an electrochemical valve metal, e.g., titanium and the infiltrating metal is lead. Applications for the composite electrode include battery grids and electrochemical processing electrodes.
    Type: Grant
    Filed: April 18, 1981
    Date of Patent: November 16, 1982
    Assignees: The International Nickel Company, Inc., ESB Corporation
    Inventors: Pierre P. Turillon, Michael N. Hull, George F. Nordblom
  • Patent number: 4358352
    Abstract: A platinum electroplating bath comprising cis diammine dichloroplatinum (II) or cis diammine diiodo platinum (II), sodium chloride or sodium iodide and a liquid phase comprising water and dimethylformamide in volume ratios of about 1:1 to about 1:2.
    Type: Grant
    Filed: June 22, 1981
    Date of Patent: November 9, 1982
    Assignee: MPD Technology Corporation
    Inventor: Richard N. Rhoda
  • Patent number: 4358511
    Abstract: Directed to a nickel-chromium-molybdenum alloy containing about 1.3% to about 3% of aluminum plus titanium, which is particularly useful where corrosion resistance, strength and ductility are required, such as in oil well tubing.
    Type: Grant
    Filed: October 31, 1980
    Date of Patent: November 9, 1982
    Assignee: Huntington Alloys, Inc.
    Inventors: Darrell F. Smith, Jr., Edward F. Clatworthy