Patents by Inventor David R. Berberick

David R. Berberick 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).

  • Electrolyte for lithium-manganese oxide cells and the like
    Patent number: 5154992
    Abstract: An improved electrolyte for electrochemical cells including as a cosolvent for the cell electrolyte salt an amount of diglyme; ethyl diglyme; ethyl glyme; triglyme, tetraglyme and higher glymes; dimethoxymethane; 1,2-dimethoxypropane; dimethoxy THF or mixtures thereof.
    Type: Grant
    Filed: August 10, 1990
    Date of Patent: October 13, 1992
    Assignee: Medtronic, Inc.
    Inventors: David R. Berberick, John W. Cretzmeyer, Donald R. Merritt, Paul M. Skarstad, Douglas J. Weiss
  • Battery fill-post seal arrangement for hermeticity leakage testing
    Patent number: 4913986
    Abstract: Double seal arrangement with intermediate test gas holding means for leak testing and assuring high hermetic batteries.
    Type: Grant
    Filed: May 5, 1986
    Date of Patent: April 3, 1990
    Assignee: Medtronic, Inc.
    Inventors: William G. Howard, David R. Berberick
  • Battery fill-port seal arrangement for hermeticity leakage testing
    Patent number: 4748094
    Abstract: Double seal arrangement with intermediate test gas holding means for leak testing and assuring high hermetic batteries.
    Type: Grant
    Filed: February 24, 1986
    Date of Patent: May 31, 1988
    Assignee: Medtronic, Inc.
    Inventors: William G. Howard, David R. Berberick
  • Current collectors for batteries having cathode-electrolytes and batteries incorporating same
    Patent number: 4666799
    Abstract: Improved current collector design for controlling battery current capability by providing consistent controlled surface area contact between the carbon element of the current collector and its electrical terminal means.
    Type: Grant
    Filed: May 9, 1985
    Date of Patent: May 19, 1987
    Assignee: Medtronic, Inc.
    Inventors: Jonas A. Runquist, William G. Howard, David R. Berberick
  • Nonaqueous electrochemical cell
    Patent number: 4608322
    Abstract: A nonaqueous cell comprising an active metal anode, such as a lithium, sodium, potassium, calcium or alloys, a liquid cathode-electrolyte comprising a solute dissolved in a solvent which, in a preferred aspect, is an oxyhalide of an element of Group V or Group VI of the Periodic Table and wherein the surface of the anode contacting the cathode-electrolyte is coated with a polymeric film having ether linkages. In a preferred practice of the present invention, the anode is coated with polyethersulfone.
    Type: Grant
    Filed: September 28, 1984
    Date of Patent: August 26, 1986
    Assignee: Medtronic, Inc.
    Inventors: William G. Howard, David R. Berberick