Patents by Inventor Arnold J. Brand

Arnold J. Brand 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).

  • Digital motor speed controller
    Patent number: 4298832
    Abstract: A switching circuit turns on at the beginning of a first clock signal and turns off in response to a gyroscope shaft detector signal. During the time the switching circuit remains on, a counter counts the cycles of a second clock signal. This resultant count is employed as an error signal for adjusting the output frequency of a pulse generator which is connected to a gyroscope motor. A feedback loop is created between the aforementioned components for achieving a preselected constant gyroscope motor speed.
    Type: Grant
    Filed: March 14, 1980
    Date of Patent: November 3, 1981
    Assignee: The Singer Company
    Inventors: Robert H. Acker, William C. Wessling, Arnold J. Brand, Bob N. Naydan