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:
Oct. 22, 1991
Filed:
Jul. 24, 1990
Applicant:
Inventors:
Assignee:
British Steel plc, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21C / ;
U.S. Cl.
CPC ...
266209 ; 266239 ;
Abstract
A vessel is provided having a first chamber 1 open to atmospheric pressure for receiving liquid metal and a second chamber 2 from which the metal is dispensed interconnected with the first chamber. The second chamber is sealed and coupled to means 4, 6 for reducing the pressure therein to sub-atmospheric whereby to create a higher level of metal in said second than said first chamber. The first and second chambers may be interconnected via a refractory filter.