Patents by Inventor Josef Holzmann

Josef Holzmann 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: 6453862
    Abstract: An ignition device for piston internal combustion engines with a moving piston electrode disposed in the piston face and a counter-electrode arranged in the cylinder head, and with a spark gap forming between the two electrodes wherein the spatial arrangement of the two electrodes is such that the spark gap is smaller than the minimum distance between the counter-electrode and the piston face.
    Type: Grant
    Filed: April 14, 2000
    Date of Patent: September 24, 2002
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventor: Josef Holzmann
  • Patent number: 5038745
    Abstract: An ignition unit for internal combustion engines with an ignition coil having a ferromagnetic core integrated with a spark plug connector, about the main core of which is arranged a primary winding and a secondary winding surrounded by an insulating body; the ignition coil and the spark plug connector are so arranged to one another that the axial directions of the spark plug connector and of the main core of the ignition coil form at least approximately a right angle.
    Type: Grant
    Filed: November 6, 1990
    Date of Patent: August 13, 1991
    Assignee: Bayerische Motoren Werke AG
    Inventors: Alfred Krappel, Johannes Guggenmos, Josef Holzmann, Georg Buchholz, Robert Tschuk
  • Patent number: 4914343
    Abstract: The outer or side electrode of a spark plug is configured as a flat plate confronting the center electrode to define a gap, and fixed to the threaded shell or body of the plug by a plurality of spider legs. A plurality of holes are formed in the plate to improve the plug durability and retard any discharge voltage increases.
    Type: Grant
    Filed: December 23, 1988
    Date of Patent: April 3, 1990
    Assignees: NGK Spark Plug Co., Ltd., Bayerische Motoren Werke A.G.
    Inventors: Junichi Kagawa, Wataru Matsutani, Alfred Krappel, Josef Holzmann, Johannes Guggenmos
  • Patent number: 4506643
    Abstract: The timing of the signal to the primary of an ignition coil is controlled by selectively connecting impedance to a transducer in accordance with an engine operating parameter such as revolutions per minute.
    Type: Grant
    Filed: April 9, 1982
    Date of Patent: March 26, 1985
    Assignee: Bayerische Motoren Werke A.G.
    Inventors: Alfred Krappel, Johannes Guggenmos, Josef Holzmann