Patents by Inventor David C. Waldron

David C. Waldron 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: 4829676
    Abstract: A level indicating device comprising a level having attached thereto a pair of detachable securing clips whereby the level indicating device can be maintained mounted flush with a structural member in any spatial orientation without further manual manipulation. The level has clip receiving slots formed in the opposed ends thereof adapted for force-fit reception of the detachable securing clips. The detachable securing clips have mirror-image symmetry and comprise a transverse segment adapted to be force fit inserted into the clip receiving slots, a pair of opposed leg segments extending from opposed ends of the transverse segment for elastically engaging the outer peripheral surface of the structural member to maintain the level indicating device flush with the structural member, and curved end segments terminating the opposed leg segments.
    Type: Grant
    Filed: August 4, 1987
    Date of Patent: May 16, 1989
    Inventor: David C. Waldron