Patents by Inventor Ralph T. Armitage

Ralph T. Armitage 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).

  • Push button switch
    Patent number: 4319106
    Abstract: An alternate action push button switch of the type in which longitudinal motion of a push button is converted to alternate circumferential rotation of a rotor means is provided to produce alternate opening or closing of a contact.
    Type: Grant
    Filed: March 31, 1980
    Date of Patent: March 9, 1982
    Inventor: Ralph T. Armitage
  • Switch plate
    Patent number: D282524
    Type: Grant
    Filed: March 17, 1983
    Date of Patent: February 11, 1986
    Inventor: Ralph T. Armitage