Patents by Inventor Jack W. Marple

Jack W. Marple 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).

  • Electrochemical cells having spirally wound electrode assemblies
    Patent number: 4963445
    Abstract: A spirally wound electrode assembly for use in electrochemical cells has an outer anode layer and an electrically insulating and ionically impermeable overwrap film disposed about the assembly. The outer anode layer has a tab located thereon. The overwrap film is inserted into the assembly between the end of the cathode layer and one of the anode layers. Upon forced discharge of the cell, the portion of the anode with the tab is disconnected in a fuse-like manner from the remainder of the anode, and the circuit is thereby broken.
    Type: Grant
    Filed: May 8, 1989
    Date of Patent: October 16, 1990
    Assignee: Eveready Battery Co., Inc.
    Inventors: Jack W. Marple, Samuel D. Nave
  • Nonaqueous electrolyte
    Patent number: 4952330
    Abstract: The invention relates to a nonaqueous electrolyte for cells such as Li/FeS.sub.2 cells, comprising a solute, such as LiCF.sub.3 SO.sub.3, dissolved in a mixture of a major amount of dioxolane (i.e. 40-53 volume percent), a minor amount of propylene carbonate (i.e. 8-18 volume percent) and dimethoxyethane (i.e. 32-40 volume percent).
    Type: Grant
    Filed: May 25, 1989
    Date of Patent: August 28, 1990
    Assignee: Eveready Battery Company, Inc.
    Inventors: Violeta Z. Leger, Jack W. Marple
  • Metal cathode collector having a protective surface layer of a metal oxide
    Patent number: 4585715
    Abstract: An electrochemical cell employing a cathode electrode comprising an active cathode material such as MnO.sub.2, deposited on and/or in contact with a metal cathode collector such as stainless steel, and wherein the metal cathode collector has a protective layer of an oxide of the metal of said cathode collector.
    Type: Grant
    Filed: June 29, 1984
    Date of Patent: April 29, 1986
    Assignee: Union Carbide Corporation
    Inventor: Jack W. Marple