Patents by Inventor Stig Wigram

Stig Wigram 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: 4555210
    Abstract: A spreader device in a storage container, such as a silo compartment, for uniform filling of the container with granular storage goods. A generally conical body (1) is suspended for rotation about its longitudinal axis in the container below the outlet of the fill spout of the container, and the upper narrow end of the body faces the mouth of the fill spout (2) and forms the bottom of a number of upwardly open channels which are distributed over the outer side of the body in the peripheral direction thereof and open at the lower end of the body, each of the channels being associated with a transverse blade (7) fixed to the conical body radially outwardly of the lower end thereof. The blades (7) take different degrees of inclination to the longitudinal axis of the body.
    Type: Grant
    Filed: October 19, 1983
    Date of Patent: November 26, 1985
    Inventor: Stig Wigram