Patents by Inventor Lewis Halsay Wheeler

Lewis Halsay Wheeler 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).

  • Annular lens cleaner
    Patent number: 4040473
    Abstract: An infrared ray viewing device for an air preheater having a clamping ring that holds a lens in a predetermined position and simultaneously provides an air flow passageway around the periphery of the lens to exhaust a stream of cleaning air radially over the surface of the lens to remove dust deposits therefrom.
    Type: Grant
    Filed: August 13, 1976
    Date of Patent: August 9, 1977
    Assignee: The Air Preheater Company, Inc.
    Inventor: Lewis Halsay Wheeler