Patents by Inventor Lester F. Schutrum

Lester F. Schutrum 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).

  • Patent number: 3999536
    Abstract: A solar heat collector has a breather tube provided on the absorber plate to provide communication between the ambient air and air in the airspace of the collector through desiccant material. In this manner, the air pressure in the airspace is equalized to the ambient air pressure without moisture moving into the airspace and the desiccant material is regenerated.
    Type: Grant
    Filed: March 19, 1975
    Date of Patent: December 28, 1976
    Assignee: PPG Industries, Inc.
    Inventors: William R. Bauer, Lester F. Schutrum
  • Patent number: 3990431
    Abstract: A solar heat collector of the type having a pair of tempered glass sheets mounted in spaced relation to each other and to a solar energy and infrared absorber is provided with a vapor-impervious and moisture-impervious seal. The seal includes (1) a moisture-impervious adhesive to prevent moisture from moving between the glass sheets and absorber and (2) a vapor-impervious strip, e.g., an aluminum strip mounted between the adhesive and peripheral edge portions of the glass sheets and absorber to prevent solvent vapors of the adhesive from moving between the glass sheets and absorber.
    Type: Grant
    Filed: June 25, 1975
    Date of Patent: November 9, 1976
    Assignee: PPG Industries, Inc.
    Inventors: Renato J. Mazzoni, Lester F. Schutrum
  • Patent number: 3990429
    Abstract: A solar heat collector has a breather tube to provide communication between the ambient air and air in the airspace of the collector through desiccant material. In this manner, the air pressure in the airspace is equalized to the ambient air pressure without moisture moving into the airspace and the desicant material is regenerated.
    Type: Grant
    Filed: February 18, 1975
    Date of Patent: November 9, 1976
    Assignee: PPG Industries, Inc.
    Inventors: Renato J. Mazzoni, Lester F. Schutrum