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:
Aug. 23, 1983
Filed:
Dec. 22, 1980
Applicant:
Inventor:
Charles E Carlson, Succasunna, NJ (US);
Assignee:
Allied Corporation, Morristown, NJ (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22D / ; B22D / ; B22D / ; G01B / ;
U.S. Cl.
CPC ...
164453 ; 164155 ; 164423 ; 164463 ; 164488 ; 356387 ;
Abstract
A non-contact, optical method is provided for controlling a gap between a crucible orifice and a rapidly moving chill surface during casting of metal strip. The method comprises setting a desired value for the gap; measuring the gap by continually scanning it with a light beam; generating a deviation signal that indicates whether there is a difference between the measured and desired values; and using the deviation signal to adjust the crucible position so as to minimize the difference. In a preferred embodiment, the light beam is provided by a laser.