Patents by Inventor Lynn R. Shepard

Lynn R. Shepard 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).

  • Press cushion
    Patent number: 4111030
    Abstract: An improved press cushion includes a piston which is disposed within a cylinder chamber. The head end of the cylinder chamber is arranged for communication with a compressed fluid, such as nitrogen gas. The rod end of the cylinder chamber is arranged for communication with a source of air which is free of contaminants found in the immediate environment of the cylinder assembly. Although clean air could be obtained from the atmosphere at a location spaced from the press, the rod end of the cylinder is advantageously connected to a low pressure supply of clean air.
    Type: Grant
    Filed: April 15, 1977
    Date of Patent: September 5, 1978
    Assignee: Teledyne Industries, Inc.
    Inventors: Lynn R. Shepard, John B. Terrell