Patents by Inventor Peter A. Schrauth

Peter A. Schrauth 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).

  • Apparatus for molding glass molds
    Patent number: 4964903
    Abstract: An apparatus for molding a glass mold for subsequent molding of glass optical elements or lenses is disclosed. The apparatus comprises a master having a snout and a master ring disposed around the snout. The master and master ring may be of unitary construction and are disposed within constraining means or sleeve in an operative association with a means for exerting a force to effect molding. The apparatus also comprises a means for heating the assembly.
    Type: Grant
    Filed: March 8, 1989
    Date of Patent: October 23, 1990
    Assignee: Corning Incorporated
    Inventors: Larry L. Carpenter, Mark L. Morrell, Peter A. Schrauth
  • Method of molding glass optical elements
    Patent number: 4929265
    Abstract: A method of molding precision glass optical elements or lenses is disclosed. Precision molded glass molds are first provided which define a glass mold cavity having a predetermined desired size, shape and volume corresponding to the glass optical element. To facilitate formation of the glass optical elements, shaped and polished preforms are formed.
    Type: Grant
    Filed: March 8, 1989
    Date of Patent: May 29, 1990
    Assignee: Corning Incorporated
    Inventors: Larry L. Carpenter, Robert J. Hagerty, Richard O. Maschmeyer, Mark L. Morrell, Peter A. Schrauth
  • Method of forming a precision glass mold and article
    Patent number: 4897101
    Abstract: A method of forming precision glass molds suitable for molding glass optical elements or lenses is disclosed. The glass molds define first and second opposed optical molding surfaces. Each master is formed by defining a master cavity adapted to form a first glass mold. A quantity of glass mold material is disposed within such cavity and molded in conformation with said master. The molding surface of each such glass mold defines an optical surface to be subsequently formed on an optical element.
    Type: Grant
    Filed: March 8, 1989
    Date of Patent: January 30, 1990
    Assignee: Corning Incorporated
    Inventors: Larry L. Carpenter, Robert J. Hagerty, Mark L. Morrell, Peter A. Schrauth
  • Apparatus for molding glass optical elements
    Patent number: 4883528
    Abstract: An apparatus for molding glass optical elements by means of at least one molded glass mold is disclosed. The optical element, which may be a lens and which may be formed of glass, is molded within an apparatus that comprises a pair of molds of which at least one is a molded glass mold, a constraining means and a ring disposed intermediate the molds. The interior diameter of the ring and the molding surfaces of the molds comprise the optical element molding cavity.
    Type: Grant
    Filed: March 8, 1989
    Date of Patent: November 28, 1989
    Assignee: Corning Incorporated
    Inventors: Larry L. Carpenter, Mark L. Morrell, Peter A. Schrauth