Patents by Inventor Howard K. Dearborn

Howard K. Dearborn 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).

  • Heat exchanger for space heaters
    Patent number: 4344411
    Abstract: A heat exchanger for use with a space heater having a combustion chamber wherein solid fuel, such as wood or coal, is supported for combustion. The heat exchanger comprises a metal plate having a plurality of spaced apart holes drilled therein extending perpendicular to the plate thickness and manifolds are attached to the plate in communication with the holes for circulating water therethrough. The plate is mounted on the space heater for heating the water circulated through the holes.
    Type: Grant
    Filed: June 7, 1979
    Date of Patent: August 17, 1982
    Inventor: Howard K. Dearborn