Patents by Inventor Edward Tessler

Edward Tessler 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).

  • Gasketless valve, and methods of constructing and utilizing same
    Patent number: 4867413
    Abstract: A gasketless seal is provided for fluid-tightly containing a pressurized fluid. The seal comprises a projection extending integrally from a first surface, a groove formed into a second surface and adapted to receive and fluid-tightly, sealingly engage the projection when the first and second surfaces are engaged, and a method for connecting the first and second surfaces together in an engaged relation. The first and second surfaces are constructed of molded plastic, and the groove is tapered so as to narrow inwardly of the second surface.
    Type: Grant
    Filed: July 14, 1988
    Date of Patent: September 19, 1989
    Inventor: Edward Tessler