Patents by Inventor Bertram R. Goodwin

Bertram R. Goodwin 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).

  • Gasket for casting lenses
    Patent number: 4227673
    Abstract: A gasket for a lens casting cell designed to accommodate for casting material shrinkage during curing in the cell.
    Type: Grant
    Filed: August 10, 1979
    Date of Patent: October 14, 1980
    Assignee: American Optical Corporation
    Inventors: Bertram R. Goodwin, Bradford Canterbury
  • Lens block with preform
    Patent number: 3996701
    Abstract: A lens block having locating bosses for fixturing to lens-surfacing equipment and an interconnected oppositely disposed lens holding portion all cast of a eutectic blocking medium. The blocking medium is cast over and through an apertured preform of rigid, relatively high melting temperature material functioning as a heat sink and material filler.
    Type: Grant
    Filed: June 30, 1975
    Date of Patent: December 14, 1976
    Assignee: American Optical Corporation
    Inventors: Peter R. Ramirez, Bertram R. Goodwin