Patents by Inventor E. Robert Plasko

E. Robert Plasko 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).

  • PTC thermal protector device
    Patent number: 4937551
    Abstract: An improved PTC thermal protector device is disclosed wherein the PTC element is protected from excessive mechanical forces such as shear forces that would otherwise significantly degrade PTC performance. The PTC element is protected by one or more adhesive masses in contact with both terminals of the device. The improved PTC thermal protector device does not require the use of specially designed terminals or terminal attachments, yet is simple to assemble on a mass-production basis.
    Type: Grant
    Filed: February 2, 1989
    Date of Patent: June 26, 1990
    Assignee: Therm-O-Disc, Incorporated
    Inventor: E. Robert Plasko