Patents by Inventor Fremont W. Burrows

Fremont W. Burrows 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).

  • Spread spectrum telemetry of physiological signals
    Patent number: 5617871
    Abstract: A system for the transmission of physiological signals from a patient to a display analysis and/or recording device using a spread spectrum transmission technique to reduce interference with the detection of the transmitted physiological signal wherein multiple channels of the physiological signals are transmitted over a bandwidth of approximately 3 MHz.
    Type: Grant
    Filed: December 1, 1994
    Date of Patent: April 8, 1997
    Assignee: Quinton Instrument Company
    Inventor: Fremont W. Burrows
  • Spread spectrum telemetry of physiological signals
    Patent number: 5381798
    Abstract: A system for the transmission of physiological signals from a patient to a display analysis and/or recording device using a spread spectrum transmission technique to reduce interference with the detection of the transmitted physiological signal wherein multiple channels of the physiological signals are transmitted over a bandwidth of approximately 3 MHz.
    Type: Grant
    Filed: November 2, 1993
    Date of Patent: January 17, 1995
    Assignee: Quinton Instrument Company
    Inventor: Fremont W. Burrows
  • Chart recorder
    Patent number: 5264864
    Abstract: A chart recorder (10) is disclosed having an automatic paper loading system, an automatic tensioning system and an "odometer" system for determining the amount of paper moved through the chart recorder. The chart recorder (10) includes a print roller (34) and a feed roller (22), both in frictional contact with the paper in the recorder and both connected to and rotated by a motor. The feed roller (22) is connected to the motor through a one way clutch that allows the feed roller (22) to "free wheel" when the feed roller (22) is rotated at a faster rate, due to frictional contact with the paper, than the roller would be rotated by the motor (56). Dissipative forces in the one way clutch (68) and bearings (24) of the feed roller (22) cause it to resist being rotated which imparts tension to the paper and draws it into contact with a paper guide (14).
    Type: Grant
    Filed: July 22, 1991
    Date of Patent: November 23, 1993
    Assignee: Quinton Instrument Company
    Inventors: William Hollman, Fremont W. Burrows, John T. Rotunda