Patents by Inventor Donovan C. Evenstad

Donovan C. Evenstad 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).

  • Jet pulse bag type collector
    Patent number: 4251244
    Abstract: A jet pulse bag type collector which makes use of a venturi and a wire cage which extends internally substantially throughout the length of the filter bag, in which the wire cage is supported from the venturi and the filter bag is supported between the wire cage and a portion depending from about the opening through the tube sheet of the collector.
    Type: Grant
    Filed: March 12, 1979
    Date of Patent: February 17, 1981
    Assignee: Wheelabrator-Frye Inc.
    Inventor: Donovan C. Evenstad