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:
Aug. 17, 1976
Filed:
Feb. 04, 1975
Applicant:
Inventors:
Yoshiharu Fukuda, Tokyo, JA;
Yoshihiko Ueda, Musahino, JA;
Assignee:
Onoda Cement Company, Ltd., , JA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F27B / ;
U.S. Cl.
CPC ...
432106 ; 432 58 ;
Abstract
This invention relates to an apparatus for calcining cement having a suspension preheater containing an auxiliary furnace in the preheater part, characterized in that said apparatus has an adjustable throttle positioned between a kiln and a mixing chamber where a combustion gas from the kiln and a combustion gas from the auxiliary furnace are joined and mixed with each other, said adjustable throttle comprising a quadrilateral flue where at least one of the walls is movable in order to control the amount of combustion gas from the kiln.