Patents by Inventor William W. Ervin

William W. Ervin 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).

  • Universal battery case having embossed intercell partitions and process for making same
    Patent number: 4076787
    Abstract: A battery case is molded with substantially planar intercell partitions which are subsequently locally heated in selected areas and deformed thereat to form bosses for holding the battery's cell element packs away from the partition and substantially centrally of the battery cell. By merely adjusting the size of the bosses, a single, universal case can be adapted to hold a number of different sized cell element packs, and hence is adaptable to be used with a variety of energy capacity batteries.
    Type: Grant
    Filed: August 30, 1976
    Date of Patent: February 28, 1978
    Assignee: General Motors Corporation
    Inventors: William W. Ervin, Lee A. Fleck