Patents by Inventor Lincoln Wingstrom

Lincoln Wingstrom 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).

  • Draft air secondary combustion apparatus for stoves
    Patent number: 4335704
    Abstract: A draft air combustion apparatus for directing substantially all of the draft air provided into a stove pipe for a stove upwardly into the stove pipe, and permitting a small amount of the draft air to flow downwardly into the stove to provide air to an area of combustion of the exhaust gases created by combustion in the stove in a region of the stove near the entrance to the stove pipe. The apparatus of the present invention including a plurality of vane elements located near the entrance of the draft flue to the stove pipe and being oriented parallel to each other and at an angle to direct the draft air upwardly.
    Type: Grant
    Filed: September 22, 1980
    Date of Patent: June 22, 1982
    Inventors: Lincoln Wingstrom, Ed Wingstrom