Patents by Inventor Michael S. Wisda

Michael S. Wisda 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).

  • Electrical switch
    Patent number: 4380704
    Abstract: An electrical switch that can be used in corrosive and explosive environments as well as under water. The switch is constructed of reed switches mounted on a printed circuit board. The printed circuit is connected with a power cable and the entire board and elements are encased in a tough, non-corrosive insulating medium. A control shaft mounting a permanent magnet extends through the casing with the magnet mounted on the outside of the casing adjacent the controlled reed switch.
    Type: Grant
    Filed: April 28, 1980
    Date of Patent: April 19, 1983
    Inventor: Michael S. Wisda