Patents by Inventor Donald Christiansen

Donald Christiansen 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: 5366190
    Abstract: A four-sided hollow post provides a mount for four repeater housings of the type used by the cable industry and protectively houses the cable so that cable guards are not needed. The post has a removable back panel so that backfill material is positioned within the hollow interior of the post during the backfill procedure; this stabilizes the post so that it remains upright. The base of the post is also flared outwardly to accomplish the same objective. A unistrut bracket is positioned in each of the four side walls to enable facile mounting of brackets that support the repeater housings, and a knock out panel is formed in each side wall so that the cable stubs depending from a repeater housing may extend into the interior of the post through a cable exit port that is created when the knock out panel is removed.
    Type: Grant
    Filed: February 1, 1993
    Date of Patent: November 22, 1994
    Inventors: Charles C. Schaefer, Donald Christiansen, Charles G. Machledt