Patents by Inventor William D. Beam

William D. Beam 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: 4480990
    Abstract: An article support rack (10) has at least one article support (12), such as a shelf, which is horizontally slidable in a first frame (18). A second frame (29) is mounted for vertical movement relative to the first frame (18). At least one weight (26) is supported by such second frame (29) at a certain distance above the article support (12) when the first and second frame are in a first position relative to each other. Articles (24) such as circuit boards are placed on the article support (12), and the vertical position of the first and second frames are shifted to a second position relative to each other wherein the upper surface of the circuit boards is pushed against the respective weight to lift the weight off its support such that the weight rests on the circuit boards.
    Type: Grant
    Filed: June 27, 1983
    Date of Patent: November 6, 1984
    Assignee: AT&T Technologies, Inc.
    Inventors: William D. Beam, David C. Chrisman, Lloyd R. Cox, Charles R. Hankins