Patents by Inventor O. DuWayne Wilkins

O. DuWayne Wilkins 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).

  • Gas separation filter device having a handle
    Patent number: 4255175
    Abstract: A gas separation device has peripheral flow-through frame with a sheet of gas separation filter media disposed across the frame and attached to the frame for filtering a gas stream passing through the filter media. As an aid in installing and removing the gas separation device from an installation, one advantageous embodiment has a handle centrally disposed of and attached to the filter media and projecting from one face of the filter media while another advantageous embodiment has two handles centrally disposed of and attached to the filter media and projecting from opposite faces of the filter media.
    Type: Grant
    Filed: October 12, 1979
    Date of Patent: March 10, 1981
    Assignee: American Air Filter Company, Inc.
    Inventor: O. DuWayne Wilkins