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:
Apr. 04, 1978
Filed:
Feb. 19, 1976
Applicant:
Inventor:
Bengt Fredrikson, Vasteras, SW;
Assignee:
ASEA Aktiebolag, Vasteras, SW;
Primary Examiner:
Int. Cl.
CPC ...
C21C / ;
U.S. Cl.
CPC ...
75 12 ; 75 11 ; 75 59 ;
Abstract
Materials of low electrical conductivity, such as minerals and metal compounds, are floated on a metal melt which is itself heated by a channel-type electric inductor, the heat from the melt transferring to the material. A pneumatic blast is injected into the melt so that the interface between it and the material is caused to dynamically undulate, promoting the heat exchange from the melt to the material. The blast can carry particles of additive or reactive agents.