Patents by Inventor Alvah D. Beauchaine

Alvah D. Beauchaine 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).

  • Solar energy conversion device
    Patent number: 3983861
    Abstract: The present solar energy conversion device has spaced, concentric outer and inner tubes of high conductivity metal, the outer tube having a blackened outside surface and a reflective inside surface. A core rod of low heat conductivity extends concentrically inside the inner tube, and water flows around this core rod in a shallow cylindrical stream inside the inner tube to absorb heat efficiently from the inner tube. The inner tube may have fins on the outside to enhance the heat transfer.
    Type: Grant
    Filed: August 21, 1975
    Date of Patent: October 5, 1976
    Assignee: Westman Manufacturing Company
    Inventor: Alvah D. Beauchaine