Patents by Inventor Orin W. Coburn

Orin W. Coburn 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 chuck with sealable cavity
    Patent number: 3994101
    Abstract: Disclosed is a system for blocking an ophthalmic lens blank by means of a vacuum. The lens blank rests on the chuck and forms an air pocket or cavity therebetween which is evacuated by means of a vacuum pump. After evacuation, an elastic plug is inserted in an aperture in the chuck by atmospheric pressure to maintain the vacuum. The lens is disengaged from the chuck by peeling the plug back and thereby releasing the vacuum.
    Type: Grant
    Filed: January 17, 1975
    Date of Patent: November 30, 1976
    Assignee: Coburn Optical Industries, Inc.
    Inventors: Orin W. Coburn, Joe D. Stith
  • Vaccum chuck with sealable cavity
    Patent number: 3971170
    Abstract: Disclosed is a system for blocking an ophthalmic lens blank by means of a vacuum. The lens blank rests on the chuck and forms an air pocket or cavity therebetween which is evacuated by means of a vacuum pump. After evacuation, an elastic plug is inserted in an aperture in the chuck by atmospheric pressure to maintain the vacuum. The lens is disengaged from the chuck by peeling the plug back and thereby releasing the vacuum.
    Type: Grant
    Filed: January 17, 1975
    Date of Patent: July 27, 1976
    Assignee: Coburn Optical Industries, Inc.
    Inventors: Orin W. Coburn, Joe D. Stith