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:
Mar. 21, 1978
Filed:
Aug. 26, 1976
Applicant:
Inventors:
Takaaki Furukawa, Yokohama, JA;
Kenzi Ozaka, Minaminagasaki, JA;
Assignees:
Ishikawajima-Harima Jukogyo Kaisha, Ote, JA;
Tokushu Shunsetsu Kabushiki Kaisha, Tokyo, JA;
Primary Examiner:
Int. Cl.
CPC ...
F22D / ; F22B / ; F28F / ;
U.S. Cl.
CPC ...
122421 ; 122510 ; 165133 ; 165134 ;
Abstract
The present invention discloses an economizer for absorbing heat of combustion products, wherein the surfaces of a series of continuous tubes extended through an exhaust gas pipe or duct are lined with glass pipes, the clearance between the exhaust pipe or duct wall and the tubes extended therethrough is sealed with gaskets, and water is circulated through the tubes.