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:
Dec. 20, 1983
Filed:
Dec. 28, 1981
Applicant:
Inventors:
Tetsuya Tokitsu, Takarazuka, JP;
Saburo Harada, Ikoma, JP;
Jiro Yamasaki, Oita, JP;
Akihiro Nakama, Oita, JP;
Assignees:
Chugai Ro. Kogyo Co., Ltd., Osaka, JP;
Nippon Steel Corp., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F27D / ; F23M / ; F27B / ;
U.S. Cl.
CPC ...
432238 ; 110331 ; 432174 ; 432247 ;
Abstract
An improved ceiling beam construction for a heating furnace in which ceiling beams having closed cross sections are adopted for utilizing the interior of the beams as ducts for passing gases through them so as to reduce spaces required for installing separate gas ducts, with a consequent decrease in the number of duct supporting fittings or fixtures.