Patents by Inventor Joachim Lerch

Joachim Lerch 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: 4359705
    Abstract: A deflection unit for a cathode ray tube, the deflection unit having saddle-shape sets of coils which are wound in slots which extend along the inside of a one-piece coil form. The coil form is flared so as to conform to the outer surface of the envelope of a cathode ray tube. The coils are wound so as to be interleaved in respective slots of the coil form thereby ensuring that the two sets of coils have substantially equal diameters with respect to a central longitudinal axis of the coil form. In further embodiments, apparatus is provided for rotatably affixing the deflection unit to the cathode ray tube so as to permit rotation of the cathode ray tube image. Such rotation may be achieved by an electric motor.
    Type: Grant
    Filed: October 3, 1980
    Date of Patent: November 16, 1982
    Assignee: Siemens Aktiengesellschaft
    Inventors: Josef Bohn, Joachim Lerch, Franz Troltsch
  • Patent number: 4223355
    Abstract: A deflection system for television cameras with a focusing coil surrounded by a magnetic shielding cylinder in which the outside diameter of the focusing coil is approximately equal to the inside diameter of the magnetic shielding cylinder and the focusing coil and the magnetic shielding cylinder are connected to each other in a heat conducting manner.
    Type: Grant
    Filed: August 21, 1978
    Date of Patent: September 16, 1980
    Assignee: Siemens Aktiengesellschaft
    Inventors: Joachim Lerch, Gerhard Seitz