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. 19, 1983
Filed:
Nov. 02, 1977
Applicant:
Inventors:
Kenneth J Jacobsen, Beaverton, OR (US);
Jerome F Moshofsky, Portland, OR (US);
Assignee:
Other;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F24F / ;
U.S. Cl.
CPC ...
165122 ; 165155 ; 165D / ; 432223 ;
Abstract
A heat extractor for picking up waste heat from flue gases is disclosed. The extractor attaches to the stove pipe of a furnace or stove. Air is introduced into the extractor in a spiral flow pattern which is reversed after the air is heated. Air flows into the room from the extractor in a 360.degree. pattern.
Jacobsen, Kenneth. (1983). Stove pipe heat extractor (U.S. Patent No. 4393925). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4393925
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile