Thermally actuatable electrical switch construction, conductive

Details Thermally actuatable electrical switch construction, conductive Thermally actuatable electrical switch construction, conductive

1981-01-05

1982-08-03

Broome, Harold

Electricity: electrothermally or thermally actuated switches

Thermally actuated switches

With fusible, combustible or explosive material

174152R, 337409, 403267, H01H 3776

Patent

active

043429823

ABSTRACT:
A thermally actuatable electrical switch construction having a housing carrying an electrically insulating end plug provided with an opening passing therethrough and in which a portion of a conductive lead is disposed so that opposite ends of the lead extend beyond opposed ends of the plug and respectively define a fixed contact inside the housing and a terminal outside the housing, the portion of the lead being retained in the opening by a sealing compound disposed in the opening and extending around the portion of the lead and interlocking therewith to tend to prevent axial movement of the lead into the housing as well as to tend to prevent rotational movement of the lead relative to the end plug. The portion of the lead has a series of at least two convolutions that interlock with the sealing compound in the opening of the end plug. The two convolutions respectively have apexes that respectively engage the internal surface of the end plug substantially on opposite sides thereof.

REFERENCES:
patent: 306719 (1884-10-01), Clark
patent: 3770878 (1973-11-01), Dozier
patent: 4060787 (1977-11-01), Budnik

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