Patents by Inventor William M. Penzer

William M. Penzer 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).

  • Piston delamination testing apparatus
    Patent number: 7549326
    Abstract: A piston testing apparatus is provided including a housing having an inner wall and defining a cavity therethrough; a piston disposed in the housing cavity and having a polymer coating deposited thereon, wherein the polymer coating of the piston contacts the housing inner wall; a connecting rod coupled to the piston; and an actuator coupled to the connecting rod and configured to provide a reciprocating movement of the piston through the cavity. An injection plate for the piston testing apparatus and a method for challenging an adhesion of the polymer coating to the piston are also described.
    Type: Grant
    Filed: February 6, 2007
    Date of Patent: June 23, 2009
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Jill M. Cummings, Tim A. Watson, William M. Penzer, Gary W. Beemer, Albert J. Black
  • Piston delamination testing apparatus
    Publication number: 20080202203
    Abstract: A piston testing apparatus is provided including a housing having an inner wall and defining a cavity therethrough; a piston disposed in the housing cavity and having a polymer coating deposited thereon, wherein the polymer coating of the piston contacts the housing inner wall; a connecting rod coupled to the piston; and an actuating means coupled to the connecting rod and configured to provide a reciprocating movement of the piston through the cavity. An injection plate for the piston testing apparatus and a method for challenging an adhesion of the polymer coating to the piston are also described.
    Type: Application
    Filed: February 6, 2007
    Publication date: August 28, 2008
    Applicant: GM Global Technology Operations, Inc.
    Inventors: Jill M. Cummings, Tim A. Watson, William M. Penzer, Gary W. Beemer, Albert J. Black