Patents by Inventor Joseph Spedale

Joseph Spedale 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).

  • Slide selector switch mechanism
    Patent number: 5051552
    Abstract: A slide selector switch mechanism for use within slide switches for controlling electrical circuits includes a detent spring centrally connected to a slide actuator member and to opposite ends of a movable bridging contactor. The detent spring provides contact pressure for effecting adequate pressurized electrical engagement of the contactor with underlying fixed terminal contact elements. The detent spring also functions as a separate actuating member for causing pivotal movement of the bridging contactor.
    Type: Grant
    Filed: July 16, 1990
    Date of Patent: September 24, 1991
    Assignee: Ilinois Tool Works Inc.
    Inventors: Sheng-Nan Hou, Joseph Spedale