Patents by Inventor Henry C. Harrison

Henry C. Harrison 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).

  • Low reflection coatings for windows
    Patent number: 4264140
    Abstract: A low reflection coating for windows. A coating of silicone rubber is applied on one surface of the window and preferably also on the other surface. Each coating preferably has a thickness of several wavelengths of light and has a minimum thickness of two microns. The coating is low cost and is suitable for large areas, for instance solar heat collectors. Reflectivity is reduced by approximately one-third. The coating has no relation to a quarter wavelength or any multiple thereof of incident light.
    Type: Grant
    Filed: March 31, 1978
    Date of Patent: April 28, 1981
    Assignee: Halm Instrument Co., Inc.
    Inventors: Henry Harrison, deceased, Henry C. Harrison
  • Translucent roofing means
    Patent number: 4189882
    Abstract: Roofing means including a roof panel. Means are provided for securing the roof panel onto a roof frame including elastic clamping means joining the panel in tensioned relation to the frame and a deformable elastic sealing member secured between the clamping means and the panel and covering the clamping member. The roof panel may be a thin translucent plastic sheet.
    Type: Grant
    Filed: November 1, 1976
    Date of Patent: February 26, 1980
    Assignee: Halm Instrument Co., Inc.
    Inventors: Henry Harrison, Henry C. Harrison
  • Protective cooling system for solar heat collector
    Patent number: 4153040
    Abstract: An auxiliary system for cooling a solar collector of the type having circulating fluid when normal circulation fails, comprising direct mechanical temperature responsive means for admitting domestic water to the collector automatically when a predetermined safe temperature is exceeded.
    Type: Grant
    Filed: September 20, 1976
    Date of Patent: May 8, 1979
    Assignee: Halm Instrument Co., Inc.
    Inventors: Henry Harrison, Henry C. Harrison