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:
May. 31, 1983
Filed:
Sep. 30, 1981
Applicant:
Inventors:
Torstein Saether, Sunndalsora, NO;
Bjarne Heggset, Frei, NO;
Assignee:
Ardal og Sunndal Verk A/S, Oslo, NO;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C21D / ;
U.S. Cl.
CPC ...
266207 ; 266236 ; 266240 ; 222598 ; 75 46 ;
Abstract
A device for the discontinuous charging of molten metal into a vacuum chamber which is continuously held under vacuum includes a charging vessel or tundish on which is disposed a fixed transfer pipe so positioned that the tundish can be rotated about the axis of the pipe to such an extent that the pipe's input orifice is lifted above the surface of the metal flow in the tundish, while at the same time the pipe is withdrawn from the vacuum chamber. The chamber is sealed with a plate valve.