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:
Dec. 04, 2012
Filed:
Aug. 02, 2005
Applicants:
Tetsuro Kikuchi, Iwate, JP;
Rikiya Kato, Soka, JP;
Inventors:
Tetsuro Kikuchi, Iwate, JP;
Rikiya Kato, Soka, JP;
Assignee:
Senju Metal Industry Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A62C 37/12 (2006.01); A62C 37/08 (2006.01); A62C 37/36 (2006.01); A62C 37/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A sprinkler head adapted for a specific yield temperature. The sprinkler head uses a heat-sensitive material composed of Sn in an amount of 0.1-2.0% by mass, Bi in an amount of 31-37% by mass and In for balance for a temperature range around 70-75° C. or a heat-sensitive material composed of Zn in an amount of 0.05-0.4% by mass, Bi in an amount of 43-55% by mass and In for balance for a temperature range around 90-95° C.