Electricity: electrothermally or thermally actuated switches – Electrothermally actuated switches – Fusible element actuated
Reexamination Certificate
2006-05-02
2006-05-02
Vortman, Anatoly (Department: 2835)
Electricity: electrothermally or thermally actuated switches
Electrothermally actuated switches
Fusible element actuated
C337S296000, C337S181000, C337S160000
Reexamination Certificate
active
07038569
ABSTRACT:
The present invention relates to an alloy type thermal fuse and a fuse element which are particularly useful as a thermoprotector for a battery. It is an object of the invention to provide an alloy type thermal fuse in which a ternary In—Sn—Bi alloy or an alloy in which Ag or Cu is added to the ternary alloy is used as a fuse element, or the fuse element wherein dispersion of the operating temperature can be satisfactorily suppressed, the operating temperature can be set to about 100° C. or lower, and the specific resistance and the mechanical strength of the fuse element can be sufficiently ensured. A low-melting fusible alloy serving as the fuse element has an alloy composition of 50 to 55% In, 25 to 40% Sn, and balance Bi. In a preferable range of the composition, In is 51 to 53%, Sn is 32 to 36%, and a balance is Bi.
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Akin Gump Strauss Hauer & Feld & LLP
Uchihashi Estec Co., Ltd.
Vortman Anatoly
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