Patents by Inventor Jack W. Clark

Jack W. Clark 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).

  • Nozzle for screen apparatus
    Patent number: 4902409
    Abstract: A nozzle block (66) and a sieve screen unit (12), in which the outlet aperture (78) of the nozzle body (68) has a substantially oval shape to produce a fan-shaped flow pattern against the screen (24). Two nozzle blocks (66a), (66b) are mounted within the sieve screen housing (24), each block having a substantially solid, cuboid body including an outlet aperture that distributes slurry over the full width of the screen.
    Type: Grant
    Filed: January 19, 1988
    Date of Patent: February 20, 1990
    Assignee: Sprout-Bauer, Inc.
    Inventor: Jack W. Clark