Patents by Inventor William N. Laughlin, deceased

William N. Laughlin, deceased 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).

  • Shock absorbing apparatus
    Patent number: 4032126
    Abstract: A housing having a closed end and an open end with a first and second flexible sealing member attached to the inside surface of the housing, a piston carried out of contact with the inside surface of the housing by the first and second flexible sealing members, and a perforate baffle positioned inside the housing between the first and second flexible sealing members are disclosed. A chamber defined by the closed end of the housing and the first flexible sealing member may be filled with a compressible fluid, and a chamber defined by the first and second flexible sealing members may be filled with an incompressible fluid. A one-way valve may cover a perforation in the baffle.
    Type: Grant
    Filed: March 29, 1976
    Date of Patent: June 28, 1977
    Inventors: William N. Laughlin, deceased, by Thomas L. Hollis, executor