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:
Nov. 19, 2002
Filed:
Nov. 01, 1999
Applicant:
Inventors:
Peter Löfgren, Västerås, SE;
Yujing Liu, Västerås, SE;
Assignee:
ABB Research Ltd, , SE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23C 1/6507 ;
U.S. Cl.
CPC ...
C23C 1/6507 ;
Abstract
A device for heat treatment of an object comprises a susceptor ( ) having walls ( ) surrounding an inner room ( ) adapted to receive the object and Rf-field radiating means ( ) arranged outside the walls and adapted to heat the walls and by that said object. Said means comprises at least two coils ( ) with at least one turn each following upon each other in a longitudinal direction of the susceptor and a current source ( ) arranged to cause a current to flow in each coil in a direction of rotation around the susceptor walls opposite to that of the other coil for heating said walls.