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:
Sep. 11, 1979
Filed:
Jun. 30, 1977
Applicant:
Inventor:
Arvind C Thekdi, Sylvania, OH (US);
Assignee:
Midland-Ross Corporation, Cleveland, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F28F / ;
U.S. Cl.
CPC ...
1651 / ; 122 / ;
Abstract
A device which is positionable within a flue for recapturing heat from hot gases exiting the flue. The device comprises a pair of tubes which are disposed in parallel relation longitudinally of the flue. The tubes are formed from cylindrical tubes which have been flattened from a circular to a generally oval cross-sectional configuration. A shield is positioned longitudinally between the two tubes for radiating against the tubes, heat which contacts the shield by convection.