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:
Jul. 12, 1977
Filed:
Apr. 04, 1975
Applicant:
Inventor:
Samuel Calderon, Akron, OH (US);
Assignee:
Calderon Automation, Inc., Cleveland, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21C / ;
U.S. Cl.
CPC ...
75 60 ; 75 61 ;
Abstract
1 An improved method and apparatus for making possible the collection of fumes during the charging of a furnace, particularly a steelmaking furnace using a conventional oxygen blowing process and which furnace rotates about a trunnion arrangement. The furnace is of the type having an upright position with its mouth aligned with a hood for evacuating fumes generated during blowing. A method and apparatus are provided for charging molten iron, solid iron or steel scrap while the furnace mouth is located under the hood.