Patents by Inventor Herbert A. Worsford

Herbert A. Worsford 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).

  • Bulk bag unloading station
    Patent number: 4810156
    Abstract: A bulk bag unloading station having a frame from which a bag containing powdery, granular or fibrous material and having a bottom spout, may be suspended; a base plate with an opening; and a mechanism above the base plate for intermittently shaking a bottom portion of the bag to aid the flow of material from the spout. The mechanism has a number of liftable petals actuated pneumatically.
    Type: Grant
    Filed: September 11, 1987
    Date of Patent: March 7, 1989
    Assignee: Vac-U-Max
    Inventors: Stevens P. Pendleton, Herbert A. Worsford