Patents by Inventor Desmond Patrick Robertson Smyth

Desmond Patrick Robertson Smyth 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: 3942689
    Abstract: An apparatus and a method are disclosed for loosening compacted fibrous material in a container whereby the fibrous material will flow freely out through an outlet located in the bottom of the container. Agitation means are provided on the sidewalls of the container adjacent to the outlet to create and maintain an open space adjacent the outlet. A flexible, tubular member is placed in said container so that a free portion having an open end extends into the open space a sufficient distance that when a pressurized fluid is passed through the flexible member and out of its open end it causes whip-like movements of the free portion within the open space causing the pressurized fluid to be directed upwardly towards the fibrous material compacted overhead to loosen and dislodge the fibrous material.
    Type: Grant
    Filed: February 27, 1974
    Date of Patent: March 9, 1976
    Assignee: Johns-Manville Corporation
    Inventors: Gerald Frank Dakin, Jr., Georges Louis Olney, Desmond Patrick Robertson Smyth