Thermal cut-outs and to the method of assembling a multiplicity

Details Thermal cut-outs and to the method of assembling a multiplicity Thermal cut-outs and to the method of assembling a multiplicity

1979-08-27

1981-10-27

Beha, Jr., William H.

Electricity: electrothermally or thermally actuated switches

Thermally actuated switches

With fusible, combustible or explosive material

29622, 337413, 337414, H01H 3776, H01H 6900

Patent

active

042976693

ABSTRACT:
A thermal cut-out which is adapted to open an electrical circuit in response to an excessive rise in temperature associated with the circuit protected by said cut-out. Said cut-out comprising a hollow body of electrically insulating material and having an opening through which a pair of contact members are put into said hollow body. A plug of electrically insulating material closing said opening and stressing the contacts to a condition in which they are biased apart. Said contact members being retained in engagement by an element as long as its temperature has not reached a predetermined temperature. Said element being made from a material which deforms or collapse at said predetermined temperature so that it cannot retain said biased contacts any longer in engagement and permits the contacts to open.

REFERENCES:
patent: 3397380 (1968-08-01), Puig
patent: 3573713 (1971-04-01), Enright
patent: 4135177 (1979-01-01), Kelley et al.
patent: 4255736 (1981-03-01), Kelley et al.

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