Patents by Inventor Conrad W. Pastwa

Conrad W. Pastwa 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).

  • Quieted fast acting switch assembly with visco-elastic polymer laminated between metal layers
    Patent number: 4912289
    Abstract: A relatively quiet switch assembly having a plurality of spaced contact sets with snap-acting transfer actuation and interconnected by a common bus plate. The bus plate is formed of a swandwich construction having a thin (0.001 Inch) core layer of visco-elastic polymer and thicker layers of copper bonded to both sides of the core layer for sound attenuation upon contact transfer. Where the bus plate is formed to a right-angle bend of R/t-1.2 the inner layer is formed of half-hard material and the outer layer of fully annealed material.
    Type: Grant
    Filed: December 21, 1988
    Date of Patent: March 27, 1990
    Assignee: Eaton Corporation
    Inventors: Richard L. Lauritsen, Conrad W. Pastwa, Daniel A. Wycklendt