Patents by Inventor William Michael Stec

William Michael Stec 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).

  • Seal for an electrochemical cell
    Patent number: 6737188
    Abstract: A ventable seal is provided for closing the open end of an electrochemical cell. The seal incorporates indentations formed in the outer surface of the centrally located hub that abuts a flexible diaphragm at a ventable interface. If a cell's internal pressure reaches an unsafe level and the seal ruptures, the indentations prevent resealing of the ruptured seal thereby avoiding a second build up of pressure within the cell.
    Type: Grant
    Filed: February 20, 2002
    Date of Patent: May 18, 2004
    Assignee: Eveready Battery Company, Inc.
    Inventor: William Michael Stec
  • Seal for an electrochemical cell
    Publication number: 20030157398
    Abstract: A ventable seal is provided for closing the open end of an electrochemical cell. The seal incorporates indentations formed in the outer surface of the centrally located hub that abuts a flexible diaphragm at a ventable interface. If a cell's internal pressure reaches an unsafe level and the seal ruptures, the indentations prevent resealing of the ruptured seal thereby avoiding a second build up of pressure within the cell.
    Type: Application
    Filed: February 20, 2002
    Publication date: August 21, 2003
    Inventor: William Michael Stec