Patents by Inventor Craig A. Rathkamp

Craig A. Rathkamp 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: 5392629
    Abstract: An elevated card guide is integrally formed in a card cage in a process using a press, a sheet of raw material, and a tool for forming a plurality of features having at least three levels. In one embodiment, the card guide includes several multi-level bridges with at least three levels in each bridge. In another embodiment, a lead-in is formed in at least one end of at least one horizontal bridge in the multi-level bridges. Still another embodiment incorporates at least one landing in at least one of the horizontal bridges. Lead-ins and landings may also be incorporated into one or more multi-level bridges. The tool includes a male portion and a female portion which cooperate simultaneously. The tool is able to accurately dimension a part in total compliance with required specifications and all printed circuit board designs. A method of forming a plurality of multi-level features uses the press, the sheet, and the tool to form complete features in a single stroke step using the single tool.
    Type: Grant
    Filed: October 26, 1993
    Date of Patent: February 28, 1995
    Assignee: Canoga Industries Inc.
    Inventors: Donald C. Goss, Craig A. Rathkamp