Patents by Inventor Jeffrey M. Vandewinckel

Jeffrey M. Vandewinckel 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 of making plastic molds
    Patent number: 5951934
    Abstract: An improved method for forming plastic molds for casting articles having an optical surface such as contact lenses employs a plastic tool having an optically smooth surface.
    Type: Grant
    Filed: July 29, 1996
    Date of Patent: September 14, 1999
    Inventors: George L. Wickes, Kenneth L. Opdyke, William J. Appleton, Jeffrey M. Vandewinckel
  • Apparatus for rotationally aligning a feature of an optical tool with a gate in an injection molding apparatus
    Patent number: 5733585
    Abstract: A selectively, rotatably adjustable riser pin for aligning a predetermined characteristic on an asymmetrical mold surface with the gate of an injection molding machine for enhanced flow dynamics of the mold material across the mold surface. The riser pin is divided into two co-linear portions which are biased towards one another such that application of a predetermined torque will allow the front riser pin portion, which carries the mold tool, to be rotated independently of the back riser pin portion.
    Type: Grant
    Filed: September 6, 1996
    Date of Patent: March 31, 1998
    Assignee: Bausch & Lomb Incorporated
    Inventors: Jeffrey M. Vandewinckel, Allen L. Ormiston
  • Apparatus for making plastic molds
    Patent number: 5620717
    Abstract: An improved method for forming plastic molds for casting articles having an optical surface such as contact lenses employs a plastic tool having an optically smooth surface.
    Type: Grant
    Filed: July 29, 1996
    Date of Patent: April 15, 1997
    Assignee: Bausch & Lomb Incorporated
    Inventors: George L. Wickes, Kenneth L. Opdyke, William J. Appleton, Jeffrey M. Vandewinckel
  • Method of making plastic molds for molding contact lenses
    Patent number: 5456864
    Abstract: An improved method for forming plastic molds for casting articles having an optical surface such as contact lenses employs a plastic tool having an optically smooth surface.
    Type: Grant
    Filed: January 24, 1994
    Date of Patent: October 10, 1995
    Assignee: Bausch & Lomb Incorporated
    Inventors: George L. Wickes, Kenneth L. Opdyke, William J. Appleton, Jeffrey M. Vandewinckel