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:
Jul. 31, 2018
Filed:
Apr. 14, 2005
Applicants:
Rikiya Kato, Soka, JP;
Tetsuro Kikuchi, Iwate, JP;
Mutsumi Deguchi, Yachiyo, JP;
Yasuaki Koiwa, Tokyo, JP;
Inventors:
Rikiya Kato, Soka, JP;
Tetsuro Kikuchi, Iwate, JP;
Mutsumi Deguchi, Yachiyo, JP;
Yasuaki Koiwa, Tokyo, JP;
Assignee:
SENJU METAL INDUSTRY CO., LTD., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22C 28/00 (2006.01); F16K 17/38 (2006.01);
U.S. Cl.
CPC ...
F16K 17/383 (2013.01); C22C 28/00 (2013.01); F25B 2400/162 (2013.01); F28F 2265/12 (2013.01);
Abstract
A fusible plug employs an alloy which comprises 5-8 mass % of Sn, 31-34 mass % of Bi, 0.2-4 mass % of Sb, and a remainder of In. The alloy melts at approximately 66-70° C. The alloy may further contain at most 2.0 mass % of at least one element selected from strengthening elements consisting of 0.1-1.0 mass % of Cu, 0.1-1.0 mass % of Ge, 0.1-0.7 mass % of Ag, 0.1-0.6 mass % of Au, 0.2-0.6 mass % of Zn, 0.002-0.1 mass % of Ni, and 0.01-0.1 mass % of a lanthanoid.