Patents by Inventor Louis R. Mazurk

Louis R. Mazurk 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: 4317011
    Abstract: The subject matter of this invention relates to a membrane switch having a base sheet with a plurality of conductors on one surface of the sheet. A spacer sheet is adhesively secured to the base sheet on the surface having the plurality of conductors. The spacer sheet has a plurality of apertures, which apertures are aligned with selected portions of the conductors. A flexible cover sheet is adhesively secured to the spacer sheet. The flexible cover sheet has a second plurality of flexible conductors on its surface adjacent to the spacer sheet. The flexible conductors have selected portions aligned with respective apertures. Each of the flexible conductors has a thickness no greater than 0.0025 mil. The flexible cover sheet is positionable through a selected aperture with a portion of the flexible conductor to contact electrically the respective conductor on the base sheet aligned with that aperture.
    Type: Grant
    Filed: January 21, 1980
    Date of Patent: February 23, 1982
    Assignee: Chicago Decal Company
    Inventor: Louis R. Mazurk