Patents by Inventor John Marshall Thomasson

John Marshall Thomasson 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).

  • FIELD REPLACEABLE AUXILIARY SWITCH AND CONTROL CIRCUIT ASSEMBLY FOR AN ELECTRICAL CONTACTOR
    Publication number: 20140133109
    Abstract: A field replaceable auxiliary switch and control circuit assembly for an electrical contactor that comprises a frame member capable of being inserted into, and removable from, an opening and an interior of an electrical contactor housing. A circuit board is mounted to the frame member and has a control circuit formed thereon. The assembly may further comprise a first electrical connector disposed within the contactor housing and a second electrical connector attached to the circuit board having one or more electrical contacts capable of being positioned in mating relationship with the first electrical contactor, which is in electrical communication with an electromagnet and/or electromagnetic coil.
    Type: Application
    Filed: October 18, 2013
    Publication date: May 15, 2014
    Applicant: DYNAPAR CORPORATION
    Inventors: John Marshall Thomasson, Cathleen Mary Clausen, Nicholas Graham Hartman, David Donovan
  • Electrical contactor
    Patent number: D713359
    Type: Grant
    Filed: October 29, 2012
    Date of Patent: September 16, 2014
    Assignee: Dynapar Corporation
    Inventors: John Marshall Thomasson, Cathleen Mary Clausen, Nicholas Graham Hartman, David Donovan
  • Electrical contactor
    Patent number: D753067
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: April 5, 2016
    Assignee: Dynapar Corporation
    Inventors: John Marshall Thomasson, Cathleen Mary Clausen, Nicholas Graham Hartman, David Donovan