Patents by Inventor Wayne Michael Forsey

Wayne Michael Forsey 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).

  • Stepper motor jam detection circuit
    Patent number: 6815923
    Abstract: Methods, devices and circuits for detecting malfunctions in stepper motors. A signal from a driver circuit to a stepper motor that is proportional to the current in the windings of the stepper motor is detected. This signal is then amplified and integrated for ease of comparison. The resulting signal is then compared to a specific entry in a table of values with each entry in the table corresponding to an operating profile of the stepper motor. If the resulting signal does not correspond to the operating profile for which the motor a configured, the stepper motor is jammed. A suitable alarm and a corresponding sequence of actions may then be triggered.
    Type: Grant
    Filed: August 8, 2002
    Date of Patent: November 9, 2004
    Assignee: Spielo Manufacturing Incorporated
    Inventor: Wayne Michael Forsey
  • Stepper motor jam detection circuit
    Publication number: 20040027089
    Abstract: Methods, devices and circuits for detecting malfunctions in stepper motors. A signal from a driver circuit to a stepper motor that is proportional to the current in the windings of the stepper motor is detected. This signal is then amplified and integrated for ease of comparison. The resulting signal is then compared to a specific entry in a table of values with each entry in the table corresponding to an operating profile of the stepper motor. If the resulting signal does not correspond to the operating profile for which the motor a configured, the stepper motor is jammed. A suitable alarm and a corresponding sequence of actions may then be triggered.
    Type: Application
    Filed: August 8, 2002
    Publication date: February 12, 2004
    Inventor: Wayne Michael Forsey