Patents by Inventor Gwenne A. E. Henricks

Gwenne A. E. Henricks 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).

  • Filtering of electromagnetic interference from a digital signal
    Patent number: 4721870
    Abstract: An apparatus for filtering radio frequency interference from digital signals. The filter uses a resistor, an inductor and a capacitor to provide a filter with a broad bandwidth capable of passing high frequency digital signals, while severely attenuating radio frequencies coupled to the digital signals. The filter is used primarily in conjunction with an electronic control to filter input signals to the control from remote sensors.
    Type: Grant
    Filed: October 3, 1986
    Date of Patent: January 26, 1988
    Assignee: Caterpillar Inc.
    Inventors: Stephen W. Rector, Gwenne A. E. Henricks
  • Voltage adaptive solenoid control apparatus
    Patent number: 4481554
    Abstract: An apparatus (10) is provided for controllably operating at least one solenoid coil (12) in a battery operated system. The mean voltage applied to the coil (12) is controlled in response to at least the battery voltage, facilitating the use of various battery voltages with a single voltage coil (12). The apparatus (10) is readily adapted for controlling multiple coils (12) and is digital in design.
    Type: Grant
    Filed: August 18, 1983
    Date of Patent: November 6, 1984
    Assignee: Towmotor Corporation
    Inventors: Gwenne A. E. Henricks, William Pickering, Wayne T. Wiblin