Patents by Inventor Harold W. Smith

Harold W. Smith 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 collector
    Patent number: 4292955
    Abstract: A solar energy collector includes a housing having a cover transparent to solar energy. A solar energy absorber is enclosed within the housing just beneath the cover. The absorber is formed to define a plurality of narrow fluid channels of triangular cross section which are disposed in close proximity to each other. The triangular cross section fluid channels are defined by a serpentine-shaped metal top sheet which is secured to a flat metallic bottom sheet. The upper ridges of the fluid channels are disposed in proximity to and support the cover. The geometric relation between the fluid channels, the narrow air spaces defined between the fluid channels and the cover is such as to provide a low cost, high efficiency panel.
    Type: Grant
    Filed: February 24, 1978
    Date of Patent: October 6, 1981
    Inventor: Harold W. Smith
  • Self-resistance-heated evaporation boat
    Patent number: 4089643
    Abstract: An elongated, cavity-containing, self-resistance-heated, evaporation boat has a triangular cross-sectional shape at its cavity portion.
    Type: Grant
    Filed: March 19, 1976
    Date of Patent: May 16, 1978
    Assignee: GTE Sylvania Incorporated
    Inventors: Charles F. Jerabek, Edward D. Parent, Harold W. Smith