Patents by Inventor David Christopher Cattermole

David Christopher Cattermole 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).

  • Tripod arrangements
    Patent number: 4015806
    Abstract: A double tripod arrangement in which the legs of a first tripod extend to a fixed angle and the feet of a second tripod are adjustably mounted on the legs of the first tripod. The first tripod forms a secure base on which the second tripod can be adjusted for height and for levelling.
    Type: Grant
    Filed: March 21, 1975
    Date of Patent: April 5, 1977
    Assignee: Elliott Brothers (London) Limited
    Inventor: David Christopher Cattermole
  • Partially rotated fastener comprising circular fastener halves captured in complementary cavity
    Patent number: 3964511
    Abstract: A partially rotated arrangement fastens parts together in nearly perfect alignment. The fasteners utilize semicircular rings which are rotated about the circular axis until each ring lies partly in each of two adjacent parts. The parts so joined together may contain one or more fluid passages or form electric conductors, and more particularly, wave guides.
    Type: Grant
    Filed: November 11, 1974
    Date of Patent: June 22, 1976
    Assignee: Elliott Brothers (London) Limited
    Inventor: David Christopher Cattermole
  • Partially rotated fastener
    Patent number: 3937585
    Abstract: A partially rotated arrangement fastens parts together in nearly perfect alignment. The fasteners utilize semicircular rings which are rotated about the circular axis until each ring lies partly in each of two adjacent parts. The parts so joined together may contain one or more fluid passages or form electric conductors, and more particularly, wave guides.
    Type: Grant
    Filed: September 29, 1972
    Date of Patent: February 10, 1976
    Assignee: Elliott Brothers (London) Limited
    Inventor: David Christopher Cattermole