Patents by Inventor Heinz Schaefer

Heinz Schaefer 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).

  • Patent number: 6320274
    Abstract: In order to reduce the battery load, a second elevated onboard electrical system voltage is provided at least for high-current consuming components. The voltage is derived from the battery voltage via a step-up switching regulator (SUSR) or is supplied by a starter-generator (SG) via a converter (CONV) in the generator mode of the starter-generator, which is coupled with an internal combustion engine (ICE) of the vehicle. The step-up switching regulator is used for battery supply of a start capacitor (CAP) and the converter is used for triggering of the starter-generator to start the internal combustion engine.
    Type: Grant
    Filed: May 30, 2000
    Date of Patent: November 20, 2001
    Assignee: Siemens AG
    Inventors: Thomas Goetze, Hans-Peter Johanning, Heinz Schaefer
  • Patent number: 5743146
    Abstract: The locking device for locking of two relative to each other longitudinally moveable elements comprises an electromagnet including a magnetic yoke, an operating winding and a magnet armature. The operating winding and magnetic yoke are positionally fixed on the first element, while the magnet armature is fixed on the second element in respect to the longitudinal movement direction X. The magnet armature presses with one of its walls via a spring device against an opposing wall of the magnetic yoke. The walls of the magnet armature and magnetic yoke which lie opposed to each other are provided with an at least approximately form fitting register contour, so that magnet armature and magnetic yoke can be held in a locked position with respect to each other. For locking, the electromagnet is activated in the register position. Upon application of a predetermined amount of force in the longitudinal direction upon the first or second element the locking position can be release or disengaged.
    Type: Grant
    Filed: April 19, 1996
    Date of Patent: April 28, 1998
    Assignee: Binder Magnete GmbH
    Inventors: Hans-Peter Oesterle, Heinz Schaefer, Wolfgang Blaffert