Patents by Inventor Frederick W. Put

Frederick W. Put 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).

  • Belt filter press and belt for same
    Patent number: 4911841
    Abstract: A belt filter press comprising two co-operating, endless belts, particularly for manure, which according to the invention takes steps to enable liquid and solid substance to be better separated from each other. The pressure between the endless belts is increased, the longitudinal edges are sufficiently sealed and substance that is still too moist is subjected repeatedly to compression since it remains stuck to the upper endless belt and is carried to the intake of the belts.
    Type: Grant
    Filed: August 18, 1988
    Date of Patent: March 27, 1990
    Assignee: Strategic American Markets, Inc.
    Inventor: Frederick W. Put