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. 14, 1981
Filed:
Aug. 30, 1979
Taizo Kawamoto, Osaka, JP;
Hiroyuki Nakashima, Kisarazu, JP;
Yozo Takemura, Chita, JP;
Kaname Ohno, Kyoto, JP;
Kawaso Electric Industrial Co., Ltd., Osaka, JP;
Nippon Steel Corporation, Tokyo, JP;
Abstract
An apparatus for determining carbon contents in molten metal comprising an entrance chamber with an entry port in a side wall, a sampling chamber, a ring-shaped disk to be set between both chambers and a temperature sensing means which is protected from the flowing sample metal by a protective thermal insulation member, protruding through the entrance chamber to the sampling chamber. The molten metal flowing from the entry port is cooled by contacting with the protective thermal insulation member. The insulation member will turn to be a riser when the sample metal starts solidifying in the sampling chamber. Thus enabling precise rapid carbon determination and simultaneously offering appropriate specimen for spectrographic analysis.