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.

Date of Patent:
Feb. 28, 1978

Filed:

Dec. 02, 1976
Applicant:
Inventors:

Takeshi Iwasaki, Tokyo, JA;

Yasuo Fujikawa, Hiroshima, JA;

Kunimasa Sasaki, Hiroshima, JA;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01F / ; H01F / ;
U.S. Cl.
CPC ...
73295 ; 336 57 ; 3402 / ;
Abstract

A device for detecting the level of the molten metal surface within a continuous casting mold. A detector element consisting of a body of a thermosensitive magnetic material, the magnetic properties of which vary in response to a temperature variation, is mounted at an appropriate position on a side wall of the continuous casting mold, and an electromagnetic coil for detecting the magnetic flux in the detector element is contained within a detector box mounted in a water jacket surrounding the mold at a position opposed to the detector element. The molten metal surface level within the mold is detected by detecting a change in the magnetic properties of the detector element by means of the electromagnetic coil. The detector box is detachably mounted in the water jacket, and water supply inlet and outlet means in the detector box guide cooling water through the detector box for cooling the electromagnetic coil within the detector box. A protective casing containing the electromagnetic coil is slidably mounted in a side wall of the detector box toward the mold for movement toward and away from the mold. The casing has an extension thereon projecting toward the mold and is spring-biased towards the mold, whereby a predetermined distance is maintained between the outer side wall of the mold and the protective casing.


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