Patents by Inventor Fred Kern

Fred Kern 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).

  • Distributorless capacitive discharge ignition system
    Patent number: 5131376
    Abstract: A high power high energy distributorless ignition system for multicylinder internal combustion engines using a single energy storage capacitor (4), a single leakage resonating inductor (20) with a switch SS partially or entirely across it, and one or more coils Ti with bi-directional switches Si and with single or double hith voltage outputs, the system defining a compact coil assembly powered by a resonant converter power supply (12), the ignition power delivery controlled by means of circuitry based on a robust gate (17), an oscillator (19), and steering circuitry (21).
    Type: Grant
    Filed: April 12, 1991
    Date of Patent: July 21, 1992
    Assignee: Combustion Electronics, Inc.
    Inventors: Michael A. V. Ward, Winfield Hill, Fred Kern
  • Carrying case
    Patent number: D362547
    Type: Grant
    Filed: October 6, 1992
    Date of Patent: September 26, 1995
    Assignee: Plaston AG
    Inventors: Hermann Dell, Volker Herrmann, Fred Kern, Dietmar Muller, Roland Schirrmacher