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. 12, 2000
Filed:
Oct. 29, 1997
Applicant:
Inventors:
Yuichi Yamakawa, Tokyo, JP;
Tsuneo Matsudaira, Tokyo, JP;
Sunao Nakamura, Tokyo, JP;
Tomohiro Yoshida, Tokyo, JP;
Yasuo Suzuki, Tokyo, JP;
Assignee:
NKK Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F23B / ;
U.S. Cl.
CPC ...
422139 ; 110349 ;
Abstract
A structure of a gasified and melting furnace comprising a freeboard portion whose center axis is shifted from a center axis of a lower furnace portion by 50% or more of an inner furnace diameter, to load waste and additives and to measure a height of a deposition layer formed in the lower furnace portion, without passing through the freeboard.