Patents by Inventor Robert L. Brandt

Robert L. Brandt 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).

  • Multibay coplanar direction finding antenna
    Patent number: 5521608
    Abstract: A multiband direction finding antenna comprised of numerous antenna elements, of coplanar location. The antenna elements associated with lower band frequencies are provided with chokes, so that unchoked sections do not exceed one-quarter wavelength of the high-band, highest frequency.
    Type: Grant
    Filed: February 24, 1994
    Date of Patent: May 28, 1996
    Assignee: Rockwell International
    Inventors: Robert L. Brandt, Allen E. Tupker
  • AC overload protective circuit
    Patent number: 4718114
    Abstract: An automatic AC protection circuit protects a radio receiver from RF overload by shortcircuiting the overload power to ground. The circuit includes a transistor having its collector coupled to the RF input and its emitter coupled to ground and the base coupled through an inductive impedance to ground. The value of inductive impedance in parallel with the base to emitter impedance of the transistor determines the RF input level at which the transistor turns on and clamps the RF to ground to protect a receiver from overload.
    Type: Grant
    Filed: March 27, 1986
    Date of Patent: January 5, 1988
    Assignee: Rockwell International Corporation
    Inventor: Robert L. Brandt