Patents by Inventor Robert G. Hoof

Robert G. Hoof 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).

  • Labyrinth disk stack having disks with integral filter screens
    Patent number: 4267045
    Abstract: A multi-turn labyrinth disk (10) is provided for a pressure reduction disk stack (12) which has an integral filter screen (34). The filter screen (34) comprises a series of small area passages (A.sub.2) located on the periphery of the disk (10) which lead to a common high capacity radial passage (32) used to supply a series of multi-turn labyrinth paths (18).
    Type: Grant
    Filed: December 13, 1979
    Date of Patent: May 12, 1981
    Assignee: The Babcock & Wilcox Company
    Inventor: Robert G. Hoof