Patents by Inventor W. Ken Martindale

W. Ken Martindale 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).

  • Hybrid relay including solid-state output and having non-volatile state-retention and associated methods
    Patent number: 6917500
    Abstract: The hybrid relay may include a plurality of input and output terminals, and a voltage supply terminal. The hybrid relay may also include an electromagnetic coil connected to the input terminals and a latching mechanism that may include first and second contacts movable between open and closed latched positions based upon the electromagnetic coil. The first contact may be connected to the voltage supply terminal so that the second contact provides a switched voltage supply. The hybrid relay may also include an output transistor having a control terminal and having conduction terminals connected to the output terminals of the hybrid relay. A transistor driver may be connected between the switched voltage supply and the control terminal of the output transistor.
    Type: Grant
    Filed: April 8, 2002
    Date of Patent: July 12, 2005
    Assignee: Harris Corporation
    Inventors: David Kenyon Vail, W. Ken Martindale, Stephen S. Wilson
  • Hybrid relay including solid-state output and having non-volatile state-retention and associated methods
    Publication number: 20030198002
    Abstract: The hybrid relay may include a plurality of input and output terminals, and a voltage supply terminal. The hybrid relay may also include an electromagnetic coil connected to the input terminals and a latching mechanism that may include first and second contacts movable between open and closed latched positions based upon the electromagnetic coil. The first contact may be connected to the voltage supply terminal so that the second contact provides a switched voltage supply. The hybrid relay may also include an output transistor having a control terminal and having conduction terminals connected to the output terminals of the hybrid relay. A transistor driver may be connected between the switched voltage supply and the control terminal of the output transistor.
    Type: Application
    Filed: April 8, 2002
    Publication date: October 23, 2003
    Applicant: Harris Corporation
    Inventors: David Kenyon Vail, W. Ken Martindale, Stephen S. Wilson