Patents by Inventor Bernard David Francis Hutchings

Bernard David Francis Hutchings 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).

  • Crane load inidicating arrangement
    Patent number: 3965733
    Abstract: A crane safe load indicator combines signals representing the total loaded boom turning moment and the turning moment of the boom alone to derive a third signal representing the turning moment of the load alone. The third signal is compared with a signal representing the crane's maximum safe load moment to indicate available lifting capacity.
    Type: Grant
    Filed: May 10, 1974
    Date of Patent: June 29, 1976
    Assignee: Pye Limited
    Inventors: Bernard David Francis Hutchings, Robert William Hubbard