Patents by Inventor Robert K. McCubbin

Robert K. McCubbin 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).

  • Thermal ink jet printhead with ink resistant heat sink coating
    Patent number: 5751316
    Abstract: A heat sink for a thermal ink jet printhead has improved resistance to the corrosive effects of ink by forming a chromate film on a copper plated metal substrate. In one described embodiment, a thermal ink jet printer is formed by bonding together a channel plate and a heater plate. Resistors and electrical connections are formed in the surface of the heater plate. The heater plate is bonded to a heat sink comprising a zinc substrate having a copper film plated on one surface. The copper plated heat sink is immersed in a chromic acid and water bath. Metal anodes are placed within the bath and a field is applied for a period of time sufficient to form a polymeric chromate film on the copper plated surface. The chromate film has improved resistance to ink corrosion and exhibits a stronger printhead to heat sink bonding strength.
    Type: Grant
    Filed: July 1, 1996
    Date of Patent: May 12, 1998
    Assignee: Xerox Corporation
    Inventors: Raymond E. Bailey, Robert K. McCubbin, Manfred H. Goeserich, Robert P. Altavela
  • Combined print head and ink tank holder
    Patent number: D395669
    Type: Grant
    Filed: June 27, 1996
    Date of Patent: June 30, 1998
    Assignee: Xerox Corporation
    Inventors: Michael Carlotta, Robert K. McCubbin, Sr., Richard C. Keefe, Donald M. Stevens