Patents by Inventor John W. Merting

John W. Merting 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).

  • Supplemental heating and cooling system
    Patent number: 4182401
    Abstract: In a building an automatically controlled supplemental duct system causes circulation of warm air from the attic space during the heating season and cool air from the basement space during the cooling season when favorable temperature differences exist between said spaces and the internal space which is to be thermally controlled. Absent said favorable temperature differences, a conventional forced air delivery heating - cooling system operates in the conventional manner.
    Type: Grant
    Filed: July 1, 1977
    Date of Patent: January 8, 1980
    Inventors: Carrell I. Pinnell, John W. Merting