Patents by Inventor Gert Strelow

Gert Strelow 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).

  • Semiconductor controlled ignition systems for internal combustion engines
    Patent number: 3949722
    Abstract: To improve the operation of semiconductor control ignition systems under widely varying supply voltage conditions, a voltage divider having a division tap point is connected in parallel to the main switching part of the switching transistor of the ignition system, and a voltage breakdown element, typically a Zener diode is connected from the tap point to the control electrodes of the semiconductor switch to provide an additional control voltage thereto if the voltage at the tap point exceeds a value leading to breakdown of the breakdown device (Zener diode); the main control circuit for the main ignition transistor may be conventional.
    Type: Grant
    Filed: July 23, 1974
    Date of Patent: April 13, 1976
    Assignee: Robert Bosch G.m.b.H.
    Inventors: Hans Linstedt, Helmut Roth, Gotz Bundschuh, Gerd Hohne, Bernd Bodig, Gert Strelow, Peter Schmidt, Gerhard Sohner, Herman Roozenbeek, Hartmut Michel