Patents by Inventor Robert J. Vrabel

Robert J. Vrabel 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).

  • Ground connection monitoring for airbag electrical igniter circuit
    Patent number: 5136275
    Abstract: Method and apparatus for periodically checking the ground path resistance value of a crash sensor connection to chassis ground and determining if the resistance exceeds a predetermined maximum acceptable value.
    Type: Grant
    Filed: January 28, 1991
    Date of Patent: August 4, 1992
    Inventors: Adrian Madau, Robert J. Vrabel, John G. Glynn
  • Airbag electrical igniter readiness detector
    Patent number: 4893109
    Abstract: Method and apparatus for periodically checking the critical resistance value of an airbag igniter ("squib") component and determining if the resistance exceeds a predetermined maximum value.
    Type: Grant
    Filed: October 5, 1988
    Date of Patent: January 9, 1990
    Assignee: Ford Motor Company
    Inventors: Robert J. Vrabel, Dennis W. Rhee, Michael R. Seeger
  • Motor control circuit for motor driven power windows
    Patent number: 4678975
    Abstract: A control circuit for a reversible D.C. window drive motor that allows for one touch operations of the motor to automatically lower the associated window to its full down position following a relatively short actuation of the control switch in the "DOWN" position. Subsequent actuation and release of the control switch will cause interruption and inhibit the automatic lowering of the window. Longer actuations of the control switch allows for direct movement control of the window in the downward direction. Stall current sensing and excessive time sensing provide protection to the motor and the drive circuitry.
    Type: Grant
    Filed: January 6, 1986
    Date of Patent: July 7, 1987
    Assignee: Ford Motor Company
    Inventors: Robert J. Vrabel, Jeffery L. Vajgart, Lawrence E. Staszel, Henry J. Ewald, Norman M. Haygood, Jr., Leon M. Misewicz