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:
Sep. 11, 1984
Filed:
Nov. 29, 1982
Applicant:
Inventors:
Magnus Geijer, Link/o/ ping, SE;
Artur /O/ stlund, Link/o/ ping, SE;
Assignee:
Asea AB, V/a/ ster.ang.s, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F27D / ; F27D / ; C21B / ;
U.S. Cl.
CPC ...
432-9 ; 266144 ; 266901 ; 373 80 ; 432199 ;
Abstract
Apparatus for preheating scrap material, e.g. scrap metal, comprises heaters, such as air preheaters, scrap containers and air or gas conduits for conveying heated gas from the heaters to the scrap container(s) and back from the scrap container(s). The apparatus is characterized in that the conduit to the scrap container(s) is provided with valve means for diverting the flow of hot air or gas to the container(s), for example during replacement of container(s).