Patents by Inventor Frank P. Zickefoose

Frank P. Zickefoose 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).

  • Rework process for printed circuit cards and solder fountain having gas blanket for carrying out the process
    Patent number: 5340013
    Abstract: Disclosed is a solder tool for reworking a pin-in-hole printed circuit board. The solder tool has means for providing a gas blanket. Also disclosed is a method of reworking a pin-in-hole printed circuit board using the solder tool.
    Type: Grant
    Filed: December 10, 1993
    Date of Patent: August 23, 1994
    Assignee: International Business Machines Corporation
    Inventors: Joseph D. Poole, Frank P. Zickefoose
  • Dual purpose work board holder
    Patent number: 5044615
    Abstract: A printed circuit board holder wherein several boards are securely held in place in a fixture by force exerting devices pushing against the board edges. The fixture includes recessed openings where the boards are located and force exerting devices positioned between pairs of the openings. The force exerting devices include an elliptical member which is mounted flush with the boards and is rotatable to push the two adjacent boards apart from each other. Contact is made only with the board edges to provide a smooth surface across the force exerting means, the circuit boards, and the fixture.
    Type: Grant
    Filed: February 8, 1991
    Date of Patent: September 3, 1991
    Assignee: International Business Machines Corporation
    Inventors: Robert L. Newman, Michael C. Weller, Frank P. Zickefoose