Patents by Inventor Robert W. Anderson, Jr.

Robert W. Anderson, Jr. 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).

  • Slide plate screen changer
    Patent number: 4468322
    Abstract: A slide plate screen changer has a housing defining a material flow passage and a transverse slide plate passage in which is mounted a movable screen plate. Seal rings on the upstream and downstream sides respectively of the screen plate prevent leakage of material from the flow passage. One of the seals is adjusted by means of a threaded bushing which surrounds the flow passage and which protrudes axially from one end of the housing where it is fully accessible to torque exerting tools.
    Type: Grant
    Filed: January 17, 1983
    Date of Patent: August 28, 1984
    Assignee: Thermoplas Machinery, Inc.
    Inventors: John E. Fogarty, Jr., Robert W. Anderson, Jr.