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:
Sep. 12, 1978
Filed:
Nov. 11, 1976
Applicant:
Inventors:
Assignee:
Mitsubishi Jukogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01F / ;
U.S. Cl.
CPC ...
73295 ;
Abstract
A device for detecting the surface level of molten metal in a mold, in which a thermo-sensitive magnetic element the relative magnetic permeability of which varies depending upon temperature is provided on an outer wall surface of the mold, and a coil connected to an A. C. power supply is mounted so as to leave a gap between the thermo-sensitive magnetic element and the coil, so that variation in electromagnetic coupling between the coil and the thermo-sensitive magnetic element due to temperature increase of the mold according to the rise of molten metal level can be detected.