Patents by Inventor Lyle D. Hemperly, Jr.

Lyle D. Hemperly, Jr. 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).

  • Vacuum press
    Patent number: 4188254
    Abstract: An improved form of vacuum press is disclosed for use in laminating transparent protective film to photographs and the like and for dry-mounting the same to suitable substrates or backing materials.The press comprises a rigid work support assembly for supporting a workpiece, and a cover assembly hinged to the work support assembly for movement into and out of engagement with the top of the work support assembly, with the cover assembly comprising a frame, a flexible, air-impermeable membrane extending across an interior opening in the frame and attached thereto at its edges, and sealing means for forming an airtight chamberbetween the work support assembly supporting the workpiece and the cover assembly when the cover assembly is in engagement with the top of the work support assembly.
    Type: Grant
    Filed: July 24, 1978
    Date of Patent: February 12, 1980
    Assignee: Seal Incorporated
    Inventor: Lyle D. Hemperly, Jr.
  • Vacuum press
    Patent number: D256126
    Type: Grant
    Filed: July 28, 1978
    Date of Patent: July 29, 1980
    Assignee: Seal Incorporated
    Inventors: Lyle D. Hemperly, Jr., Larry C. Ayer, David H. Trout