Electricity: electrothermally or thermally actuated switches – Thermally actuated switches – With fusible – combustible or explosive material
Patent
1985-02-14
1986-11-11
Broome, Harold
Electricity: electrothermally or thermally actuated switches
Thermally actuated switches
With fusible, combustible or explosive material
337405, H01H 3776
Patent
active
046225340
ABSTRACT:
A thermal fuse for use in interconnection of lead acid batteries which will fuse as a result of heat being conducted through the fuse from the batteries or other devices to which it is attached, rather than as a result of direct heating of the fuse consequent on the current carried by the fuse. The fuse has a pair of mounting plates connected to terminals of the fuse with a heat meltable electric current conducting material in solid form disposed between the plates to provide a flow path for electric current. A member is also disposed between the plates connecting with the solidified heat meltable material and of sufficient mass so that when the material melts, the member draws substantially all of the material with it as it falls due to gravity from between the mounting plates.
REFERENCES:
patent: 1031847 (1912-07-01), Harley
patent: 3301981 (1967-01-01), Urani
patent: 3652195 (1972-03-01), McIntosh
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