The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 17, 1990
Filed:
Mar. 17, 1989
Timothy R Carlson, Seattle, WA (US);
Other;
Abstract
A pellet fired stove has a rotating fuel feed cylinder for reliably and uniformly transporting pellet fuel from a hopper to the stove's combustion chamber. An open upstream end of the rotatable hollow feed cylinder communicates with a hopper containing solid fuel, such as wood pellets. The downstream end of the cylinder opens into a fuel chute leading to the combustion chamber. The fuel pellets from the hopper spill into the rotating hollow feed cylinder and form a sloping pellet bank within the cylinder. The rotation of the cylinder agitates the sloping bank of fuel sufficiently to cause a uniform quantity of fuel per cylinder revolution to be separated from the fuel bank and discharged from the cylinder into a combustion chamber.