Patents by Inventor Donald E. Crough

Donald E. Crough 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).

  • Method for cleaning gas filter bags
    Patent number: 3975173
    Abstract: An improved method of cleaning gas filter bags and more particularly an improved method of opening the exhaust passage of a baghouse upon the completion of the cleaning of the filter bags therein.
    Type: Grant
    Filed: July 2, 1975
    Date of Patent: August 17, 1976
    Assignee: Joy Manufacturing Company
    Inventors: Harley G. Peterson, Donald E. Crough