Patents by Inventor Gerald V Rapp

Gerald V Rapp 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).

  • Surface deformation of carrier for printhead dies
    Patent number: 6679581
    Abstract: A printhead assembly includes a carrier including a substrate and a substructure joined to a first surface of the substrate, and a plurality of printhead dies each mounted on a second surface of the substrate. The first surface of the substrate includes a surface deformation and the substructure is joined to the first surface by an adhesive. As such, the adhesive conforms to the surface deformation.
    Type: Grant
    Filed: October 25, 2001
    Date of Patent: January 20, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Janis Horvath, Lawrence E Gibson, Byron K Davis, David K Mc Elfresh, Gerald V Rapp
  • Joining of different materials of carrier for fluid ejection devices
    Patent number: 6575559
    Abstract: A carrier for a plurality of fluid ejection devices includes a substrate and a substructure. The substrate includes a first material and has a first side adapted to receive the fluid ejection devices and a second side opposite the first side, and the substructure is formed of a second material and joined to the second side of the substrate with a lap joint. The lap joint includes a first portion formed by a portion of one of the substrate and the substructure, a second portion formed by a portion of the other of the substrate and the substructure, and a third material interposed between the first portion and the second portion.
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: June 10, 2003
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: David K McElfresh, Mohammad Akhavain, Joseph E Scheffelin, Gerald V Rapp, Janis Horvath