Patents by Inventor Francis Fredrick Kelso

Francis Fredrick Kelso 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).

  • Patent number: 5998747
    Abstract: In the present invention, a switch plate cover for an electrical toggle switch comprises three components. The first is a face plate which has an orifice and two standard screw holes for mounting to the switch. The second is a shaped toggle actuator cover which fits over the toggle actuator of the switch and partially through the orifice. The third is a base plate with a rectangular orifice for passage of the toggle switch/dimmer actuator to the toggle actuator cover. The combined components of the switch plate cover are mounted onto the toggle actuator of an electrical switch by placing the orifice of the third component and the hollow vertical second component directly on top of the toggle actuator and then affixing the combined face plate assembly to the switch plate with screws. In operation, the second component is slid up or down, such that the above-mentioned rectilinear displacement causes the actuator to move from one of its positions to the other of its positions.
    Type: Grant
    Filed: May 5, 1998
    Date of Patent: December 7, 1999
    Inventors: Francis Fredrick Kelso, James Patrick Reilly
  • Patent number: D415472
    Type: Grant
    Filed: May 5, 1998
    Date of Patent: October 19, 1999
    Inventors: Francis Fredrick Kelso, James Patrick Reilly