Patents by Inventor Robert J. LaBonte

Robert J. LaBonte 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).

  • Process for the production of a battery separator
    Patent number: 4812145
    Abstract: In an alkaline dry cell battery separator being a laid mat of non-dissolvable polyvinyl alcohol fibers held together by a matrix of dissolved or partially dissolved dissolvable polyvinyl alcohol fibers, the improvement comprising the mat having up to 85% of cellulosic fibers relatively uniformly distributed in and among the non-dissolvable polyvinyl alcohol fibers and held therein by said matrix.
    Type: Grant
    Filed: March 25, 1988
    Date of Patent: March 14, 1989
    Assignee: Lydall, Inc.
    Inventor: Robert J. LaBonte
  • Battery separator
    Patent number: 4767687
    Abstract: In an alkaline dry cell battery separator being a laid mat of non-dissolvable polyvinyl alcohol fibers held together by a matrix of dissolved or partially dissolved dissolvable polyvinyl alcohol fibers, the improvement comprising the mat having up to 85% of cellulosic fibers relatively uniformly distributed in and among the non-dissolvable polyvinyl alcohol fibers and held therein by said matrix.
    Type: Grant
    Filed: December 22, 1987
    Date of Patent: August 30, 1988
    Assignee: Lydall, Inc.
    Inventor: Robert J. LaBonte