Patents by Inventor Roger J. Baumbach

Roger J. Baumbach 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).

  • Hot air heating system
    Patent number: 4020823
    Abstract: The hot air from a primary combustion chamber is passed through a specialized heat exchange enclosure unit which contains a plurality of spaced, substantially vertically oriented conduits having their upper and lower ends in communication with ambient air. The enclosure receives heated air from the combustion chamber at one side and exhausts smoke and depleted gases at the other side.
    Type: Grant
    Filed: August 11, 1975
    Date of Patent: May 3, 1977
    Inventor: Roger J. Baumbach