Patents by Inventor John R. Ohlin, Jr.

John R. Ohlin, 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).

  • Method and apparatus for masking removable optical lens markings during lens grinding
    Patent number: 5792537
    Abstract: A method and apparatus for protecting removable markings on an optical lens during grinding thereof to a desired prescription. A mask is placed over the markings prior to application of an adhesive tape, to which a low temperature alloy block is bonded for holding of the lens during grinding. The mask preferably covers only the markings, and is transparent to allow alignment thereof. Preferably the mask is held in place on the lens surface without the use of an adhesive, although a low tack adhesive may be used which does not remove the markings when the mask is peeled away from the lens. A preferred material for the mask is a static cling vinyl.
    Type: Grant
    Filed: May 20, 1997
    Date of Patent: August 11, 1998
    Assignee: Venture Tape Corp.
    Inventor: John R. Ohlin, Jr.
  • Method and apparatus for masking removable optical lens markings during lens grinding
    Patent number: 5343657
    Abstract: A method and apparatus for protecting removable markings on an optical lens during grinding thereof to a desired prescription. A mask is placed over the markings prior to application of an adhesive tape, to which a low temperature alloy block is bonded for holding of the lens during grinding. The mask preferably covers only the markings, and is transparent to allow alignment thereof. Preferably the mask is held in place on the lens surface without the use of an adhesive, although a low tack adhesive may be used which does not remove the markings when the mask is peeled away from the lens. A preferred material for the mask is a static cling vinyl.
    Type: Grant
    Filed: September 18, 1992
    Date of Patent: September 6, 1994
    Assignee: Venture Tape Corporation
    Inventor: John R. Ohlin, Jr.