Patents by Inventor Louis E. Abbott

Louis E. Abbott 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).

  • Magnetic ballast for fluorescent lamps
    Patent number: 5389857
    Abstract: A low component count and lightweight ballast usable with fluorescent lamp loads of widely different wattage has first and second inductors and first and second capacitors connected in a bridge circuit and can provide current regulation within a few percent for lamp loads between 14 Watt and at least 40 Watt. The two inductors can be wound on a single toroidal core for maximum compactness.
    Type: Grant
    Filed: May 17, 1993
    Date of Patent: February 14, 1995
    Assignee: Bruce Industries, Inc.
    Inventors: Louis E. Abbott, David S. Greenblat
  • Fluorescent lamp tube with insulated ground strip
    Patent number: D359571
    Type: Grant
    Filed: June 6, 1994
    Date of Patent: June 20, 1995
    Assignee: Bruce Industries, Inc.
    Inventor: Louis E. Abbott