Patents by Inventor Robert Allen Samples

Robert Allen Samples 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).

  • Patent number: 6267472
    Abstract: A heater chip module is provided comprising a carrier adapted to be secured directly to an ink-filled container, at least one heater chip having a base coupled to the carrier, and at least one nozzle plate coupled to the heater chip. The carrier includes inner side walls and a support section which together define an inner cavity. An edge feed heater chip is coupled to the carrier support section. The heater chip includes side walls. The support section includes first and second passages which define first and second paths for ink to travel from the container to the inner cavity. The inner cavity and the heater chip are sized such that a first side wall of the heater chip is spaced from a first inner side wall of the carrier and a second side wall of the heater chip is spaced from a second inner side wall of the carrier. A nozzle plate is coupled to the heater chip and the carrier. The nozzle plate has a width such that the nozzle plate extends over an outer surface of the carrier.
    Type: Grant
    Filed: June 19, 1998
    Date of Patent: July 31, 2001
    Assignee: Lexmark International, Inc.
    Inventors: Colin Geoffrey Maher, Ashok Murthy, Darrin Wayne Oliver, Robert Allen Samples, Jeanne Marie Saldanha Singh, Carl Edmond Sullivan