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:
Jan. 02, 2024
Filed:
Jan. 28, 2022
Nippon Piston Ring Co., Ltd., Saitama, JP;
Jtekt Corporation, Kariya, JP;
Hiroshi Takiguchi, Shimotsuga-gun, JP;
Atsuya Aoki, Shimotsuga-gun, JP;
Kazushi Numazaki, Kariya, JP;
Takeshi Takahashi, Kariya, JP;
Natsuki Iwamoto, Kariya, JP;
Yudai Watanabe, Kariya, JP;
NIPPON PISTON RING CO., LTD., Saitama, JP;
JTEKT CORPORATION, Kariya, JP;
Abstract
A fusible plug for a high pressure gas cylinder includes a communication hole filled with a low melting point alloy, a porous metal sintered body is press-fitted in at least a part of the communication hole in a length direction, all or a part of the porous metal sintered body is impregnated with the low melting point alloy to solidify and composite the low melting point alloy. It is preferable that: the low melting point alloy has a melting point of 110° C.; the porous metal sintered body to be press-fitted is a porous metal sintered body having pores with an area ratio of 30% or more and 50% or less and having pores with a diameter exceeding 5 μm among the pores of 80% or more in terms of area ratio to all the pores; and the porous metal sintered body is a porous austenitic stainless steel sintered body.