Patents by Inventor Terence M. Hancock

Terence M. Hancock 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).

  • Filter arrangement
    Patent number: 4272263
    Abstract: A filter arrangement including a venturi element carried within a tubular filter by a flexible attachment ring at one end of the filter removably securing the filter in the aperture of an apertured plate member in a gas filtration system. The outermost diameter of the venturi element is slightly less than the diameter of the aperture to accommodate withdrawal of the venturi element from either side of the plate attendant to installation and removal of the filter arrangement.
    Type: Grant
    Filed: May 21, 1979
    Date of Patent: June 9, 1981
    Assignee: American Air Filter Company, Inc.
    Inventor: Terence M. Hancock