Patents by Inventor Etienne Venner

Etienne Venner 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).

  • Apparatus for feeding and proportioning pulverulent materials
    Patent number: 4083475
    Abstract: Apparatus for feeding pulverulent materials comprising a hopper with an upper vibrating portion mounted on a lower portion in which a screw equipped with a recycling arm and an associated stirring device feeds the pulverulent material at a desired rate through a discharge conduit mounted at the base of the hopper.
    Type: Grant
    Filed: June 28, 1976
    Date of Patent: April 11, 1978
    Assignee: Dosapro Milton Roy
    Inventors: Etienne Venner, Daniel Lenormand