Patents by Inventor David L. Anglin

David L. Anglin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20110244279
    Abstract: An end cap seal assembly for an electrochemical cell such as an alkaline cell is disclosed. The end cap assembly comprises a metal support disk and underlying insulating sealing disk and a metal end cap overlying the metal support disk. The edge of the end cap and metal support disk is captured by the crimped edge of the insulating sealing disk. The support disk has a downwardly extending wall with at least one aperture therethrough. The insulating disk is preferably composed of a polyetherurethane material and may have a slanted downwardly extending wall forming a rupturable membrane which underlies and abuts the inside surface of the downwardly extending wall of the support disk. A portion of the rupturable membrane underlies and abuts the aperture in the downwardly extending wall of the support disk. The rupturable membrane pushes through said aperture and ruptures when gas pressure within the cell exceeds a predetermined level.
    Type: Application
    Filed: June 13, 2011
    Publication date: October 6, 2011
    Inventors: David L. Anglin, Robert A. Yoppolo
  • Patent number: 7807297
    Abstract: Alkaline batteries are provided, including an anode, a cathode, and a separator disposed between the anode and cathode. The cathode porosity is selected to optimize performance characteristics of the battery. In one aspect, an alkaline cell is provided that includes (a) an anode, (b) a cathode, comprising a cathode active material, wherein the cathode has a porosity of from about 25% to about 30%, and (c) a separator disposed between the cathode and the anode.
    Type: Grant
    Filed: June 4, 2008
    Date of Patent: October 5, 2010
    Assignee: The Procter & Gamble Company
    Inventors: David L. Anglin, Alexander B. Shelekhin, Robert Yoppolo
  • Publication number: 20100119930
    Abstract: An alkaline cell with improved separator. The separator is formed of two sheets. The two sheets are wound into a tube shape and the bottom edge of the wound separator is folded and heat sealed. The facing surfaces of the two sheets forming the separator body are not glued or bonded together. The two separator sheets may overlap laterally so that a portion of each sheet forms a different portion of the separator outside surface. Alternatively, the separator may be formed of two sheets wherein the first sheet forms an outer layer which completely covers the second sheet. One sheet is preferably composed of a blend of polyvinylalcohol fibers and rayon fibers and the other sheet composed of polyvinylalcohol fibers and wood pulp fibers.
    Type: Application
    Filed: November 10, 2008
    Publication date: May 13, 2010
    Inventors: David L. Anglin, James J. Cervera, Alexander Shelekhin, Terry L. Hamilton, Robert M. Smith, Daniel W. Gibbons
  • Publication number: 20090305137
    Abstract: Alkaline batteries are provided, including an anode, a cathode, and a separator disposed between the anode and cathode. The cathode porosity is selected to optimize performance characteristics of the battery. In one aspect, an alkaline cell is provided that includes (a) an anode, (b) a cathode, comprising a cathode active material, wherein the cathode has a porosity of from about 25% to about 30%, and (c) a separator disposed between the cathode and the anode.
    Type: Application
    Filed: June 4, 2008
    Publication date: December 10, 2009
    Inventors: David L. Anglin, Alexander B. Shelekhin, Robert Yoppolo
  • Publication number: 20090226805
    Abstract: AAA battery has a cathode having a height of at least 44.6 mm and/or an interior surface area of at least 1240 mm2. AAAA battery has a cathode having a height of at least 39.0 mm and/or an interior surface area of at least 795 mm2.
    Type: Application
    Filed: March 7, 2008
    Publication date: September 10, 2009
    Inventors: Robert Yoppolo, Alexander B. Shelekhin, David L. Anglin
  • Publication number: 20090202910
    Abstract: Alkaline cells are provided that include a cathode that comprises expanded graphite. In some implementations, the cathode includes less than about 4% graphite by weight.
    Type: Application
    Filed: February 8, 2008
    Publication date: August 13, 2009
    Inventors: David L. Anglin, Alexander B. Shelekhin
  • Publication number: 20080102366
    Abstract: An end cap seal assembly for an electrochemical cell such as an alkaline cell is disclosed. The end cap assembly comprises a metal support disk and underlying insulating sealing disk and a metal end cap overlying the metal support disk. The edge of the end cap and metal support disk is captured by the crimped edge of the insulating sealing disk. The support disk has a downwardly extending wall with at least one aperture therethrough. The insulating disk is preferably composed of a polyetherurethane material and may have a slanted downwardly extending wall forming a rupturable membrane which underlies and abuts the inside surface of the downwardly extending wall of the support disk. A portion of the rupturable membrane underlies and abuts the aperture in the downwardly extending wall of the support disk. The rupturable membrane pushes through said aperture and ruptures when gas pressure within the cell exceeds a predetermined level.
    Type: Application
    Filed: April 27, 2007
    Publication date: May 1, 2008
    Inventors: David L. Anglin, Robert A. Yoppolo
  • Patent number: 6841302
    Abstract: An alkaline cell having an anode comprising zinc, an aqueous alkaline electrolyte, a cathode mixture comprising cathode active material comprising copper oxide or copper hydroxide. Graphitic carbon, preferably expanded graphite or graphitic carbon nanofibers are added to the cathode mixture thereby resulting in a sharp drop in cathode resistivity. The cathode active material preferably comprises between about 80 and 92 percent by weight of the cathode. The sharp drop in cathode resistivity resulting from the addition of expanded graphite or graphitic carbon nanofibers makes the cell suitable for use as a primary alkaline cell having good capacity. The graphitic carbon, preferably graphitic nanofibers comprise preferably between about 4 and 10 percent by weight of the cathode. The carbon nanofibers have an average diameter desirably less than 500 nanometers, preferably between about 50 and 300 nanometers.
    Type: Grant
    Filed: September 17, 2001
    Date of Patent: January 11, 2005
    Assignee: The Gillette Company
    Inventors: David L. Anglin, J. Simon Xue, Francis P. Wang
  • Publication number: 20030068552
    Abstract: An alkaline cell having an anode comprising zinc, an aqueous alkaline electrolyte, a cathode mixture comprising cathode active material comprising copper oxide or copper hydroxide. Graphitic carbon, preferably expanded graphite or graphitic carbon nanofibers are added to the cathode mixture thereby resulting in a sharp drop in cathode resistivity. The cathode active material preferably comprises between about 80 and 92 percent by weight of the cathode. The sharp drop in cathode resistivity resulting from the addition of expanded graphite or graphitic carbon nanofibers makes the cell suitable for use as a primary alkaline cell having good capacity. The graphitic carbon, preferably graphitic nanofibers comprise preferably between about 4 and 10 percent by weight of the cathode. The carbon nanofibers have an average diameter desirably less than 500 nanometers, preferably between about 50 and 300 nanometers.
    Type: Application
    Filed: September 17, 2001
    Publication date: April 10, 2003
    Inventors: David L Anglin, J. Simon Xue, Francis P. Wang
  • Publication number: 20020172867
    Abstract: A primary alkaline battery includes a cathode having a cathode active material and more than about 5% by weight of carbon fibers, an anode, a separator and an alkaline electrolyte. The carbon fibers have average diameters less than about 300 nanometers.
    Type: Application
    Filed: April 10, 2001
    Publication date: November 21, 2002
    Inventor: David L. Anglin
  • Patent number: 6293287
    Abstract: A dental floss having improved abrasion resistance composed of dental fibers coated with a UV-curable resin, and a method for producing a dental floss having improved abrasion resistance.
    Type: Grant
    Filed: September 13, 1996
    Date of Patent: September 25, 2001
    Assignee: Gillette Canada Inc.
    Inventors: David L. Anglin, Casper W. Chiang, Larry H. Luebbert, Michael F. Roberts
  • Patent number: 5178953
    Abstract: Disclosed are magnetic particle coating compositions employing a low molecular, high T.sub.g vinyl polymers characterized by having one or more primary alcohol containing groups pendant to the polymer chain.
    Type: Grant
    Filed: January 12, 1990
    Date of Patent: January 12, 1993
    Assignee: Ampex Media Corporation
    Inventor: David L. Anglin