Patents by Inventor Carl V. Gunter

Carl V. Gunter 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).

  • Patterned optical interference coatings for electric lamps
    Patent number: 5676579
    Abstract: An interference filter or coating is provided in a predetermined pattern on a lamp envelope. The coating is comprised of alternating layers of high and low index of refraction materials applied to a vitreous outer surface of a lamp envelope. The coating may be geometrically symmetric or asymmetric, continuous or discontinuous with respect to the coating itself or the envelope to which it has been applied. The envelope can be masked prior to deposition of the coating so that removal of the mask leaves the filter in the desired pattern. The preferred process for forming the coating includes forming a boric oxide mask on a portion of the envelope, applying the coating over the mask and removing the coating from masked areas of the envelope by dissolving the mask in an aqueous solution.
    Type: Grant
    Filed: August 27, 1996
    Date of Patent: October 14, 1997
    Assignee: General Electric Company
    Inventors: Thomas G. Parham, Frederick W. Dynys, Carl V. Gunter, John M. Davenport, Thomas M. Golz, Rolf S. Bergman, Frederic F. Ahlgren, Gary R. Allen, Mark E. Duffy, Richard L. Hansler
  • Patterned optical interference coatings for only a portion of a high intensity lamp envelope
    Patent number: 5587626
    Abstract: An interference filter or coating is provided in a predetermined pattern on a lamp envelope. The coating is comprised of alternating layers of high and low index of refraction materials applied to a vitreous outer surface of a lamp envelope. The coating may be geometrically symmetric or asymmetric, continuous or discontinuous with respect to the coating itself or the envelope to which it has been applied. The envelope can be masked prior to deposition of the coating so that removal of the mask leaves the filter in the desired pattern. The preferred process for forming the coating includes forming a boric oxide mask on a portion of the envelope, applying the coating over the mask and removing the coating from masked areas of the envelope by dissolving the mask in an aqueous solution.
    Type: Grant
    Filed: December 27, 1995
    Date of Patent: December 24, 1996
    Assignee: General Electric Company
    Inventors: Thomas G. Parham, Frederick W. Dynys, Carl V. Gunter, John M. Davenport, Thomas M. Golz, Rolf S. Bergman, Frederic F. Ahlgren, Gary R. Allen, Mark E. Duffy, Richard L. Hansler