Patents by Inventor Robert N. Mansfield

Robert N. Mansfield 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).

  • Zinc shapes for anodes of electrochemical cells
    Patent number: 7045253
    Abstract: An electrochemical cell 30 which contains both a cathode 32 and an anode 34. The anode contains a mixture of uniformly shaped particles 10 and electrolyte. The anode can also contain a zinc powder comprising non-uniform shaped, which can be mixed with the uniformly shaped particles of the present invention.
    Type: Grant
    Filed: February 23, 2004
    Date of Patent: May 16, 2006
    Assignee: Eveready Battery Company, Inc.
    Inventors: David G. Clash, Robert N. Mansfield, Jr., Christopher F. Randell, Nghia Cong Tang, Lewis F. Urry
  • Zinc shapes for anodes of electrochemical cells
    Publication number: 20040166413
    Abstract: An electrochemical cell 30 which contains both a cathode 32 and an anode 34. The anode contains a mixture of uniformly shaped particles 10 and electrolyte. The anode can also contain a zinc powder comprising non-uniform shaped, which can be mixed with the uniformly shaped particles of the present invention.
    Type: Application
    Filed: February 23, 2004
    Publication date: August 26, 2004
    Inventors: David G. Clash, Robert N. Mansfield, Christopher F. Randell, Nghia Cong Tang, Lewis F. Urry
  • Method of degreasing anode cups
    Patent number: 5972122
    Abstract: A method of degreasing an anode cup used in a zero-mercury, zinc air electrochemical cell involves contacting the anode cup with an aqueous detersive system containing one or more surfactants and which is subjected to an ultrasonic field. After being immersed in the detersive system for a suitable period of time, the anode cups are rinsed, preferably in an ultrasonic field, and dried. The resulting anode cups have lower levels of impurities, and lower levels of oxygen atoms on the surface, which provide a more hydrophobic surface containing lower levels of water and hydroxyl groups. Zinc air cells prepared from the anode cups degreased in accordance with the method of this invention exhibit less hydrogen gassing and improved performance characteristics.
    Type: Grant
    Filed: June 11, 1997
    Date of Patent: October 26, 1999
    Assignee: Eveready Battery Company, Inc.
    Inventor: Robert N. Mansfield, Jr.
  • Electrochemical cell having a coated cup-shaped terminal
    Patent number: 5306580
    Abstract: A cell employing a cup-shaped terminal that has a concave surface coated by electrodeposition of a metal such that the deposited metal contacts the cell's anodic mixture so that the anodic mixture can be made with little or no mercury. A method for producing cup-shaped terminals with a metal electrodeposited on only one side is also disclosed.
    Type: Grant
    Filed: May 17, 1993
    Date of Patent: April 26, 1994
    Assignee: Eveready Battery Company, Inc.
    Inventors: Robert N. Mansfield, Jr., Robert F. Scarr
  • Miniature zinc-air cell having an indium plated anode cupe
    Patent number: 5279905
    Abstract: A miniature zinc-air cell employing an anode cup that has an inner indium layer deposited over a copper layer on a conductive substrate such that the indium layer contacts the anodic mixture of the cell so that the anodic mixture can be made with little or no mercury. A method for producing anode cups is also disclosed.
    Type: Grant
    Filed: March 9, 1992
    Date of Patent: January 18, 1994
    Assignee: Eveready Battery Company, Inc.
    Inventors: Robert N. Mansfield, Jr., Robert F. Scarr