Patents by Inventor Willie Ellis Thompson

Willie Ellis Thompson 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 indicating arrangement
    Patent number: 4029213
    Abstract: A crane load indicator in which actual loading is determined by a strain transducer as a function of shear stress on a crane boom. A resultant actual loading signal is compared with a computed signal representative of the maximum crane loading for the prevailing conditions and the two signals are compared to provide an indication of available lifting capacity.
    Type: Grant
    Filed: April 2, 1975
    Date of Patent: June 14, 1977
    Assignee: Pye Limited
    Inventors: Willie Ellis Thompson, Timothy John Archer Davis