Patents by Inventor Charles J. Casaleggi

Charles J. Casaleggi 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).

  • Sealing gasket for air filter
    Patent number: 4128251
    Abstract: A sealing gasket for an automotive air filter comprising an annular member which includes a base portion and a seal portion. The base portion is of harder durometer than the seal portion whereby the seal portion can more readily adapt to the contour of a contact surface which it may engage so as to provide a better seal between the sealing gasket and the contact surface. In a preferred form of the invention, the seal portion comprises an annular projecting part having a lower durometer than the base portion, said lower durometer being on the order of 25 Shore A.
    Type: Grant
    Filed: September 21, 1977
    Date of Patent: December 5, 1978
    Assignee: Champion Laboratories, Inc.
    Inventors: Howard H. Gaither, Charles J. Casaleggi