Electricity: electrothermally or thermally actuated switches – Thermally actuated switches – With fusible – combustible or explosive material
Reexamination Certificate
2008-01-29
2008-01-29
Vortman, Anatoly (Department: 2835)
Electricity: electrothermally or thermally actuated switches
Thermally actuated switches
With fusible, combustible or explosive material
C337S401000, C337S407000
Reexamination Certificate
active
07323966
ABSTRACT:
A thermal fuse incorporating a thermal pellet has its operating temperature, or heat distortion temperature, adjusted and the thermosensitive material of the pellet avoids deformation, modification or similar deficiency if it is exposed to a severe external environment. The inexpensive thermal fuse provides a wider range from which an operating temperature can be selected, improved insulation resistance after operation, faster response speed in operation, and enhanced strength of the thermal pellet. The thermosensitive material is formed of a thermoplastic resin corresponding to a high molecular weight substance. The thermal pellet's heat distortion temperature is adjusted by a temperature setting method. An enclosure of the fuse has a metal casing with a spring member's strong and weak compression springs both accommodated therein and hermetically sealed.
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Fasse W. F.
Fasse W. G.
NEC SCHOTT Components Corporation
Vortman Anatoly
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