Electricity: electrothermally or thermally actuated switches – Thermally actuated switches – With fusible – combustible or explosive material
Patent
1981-06-22
1983-01-11
Beha, Jr., William H.
Electricity: electrothermally or thermally actuated switches
Thermally actuated switches
With fusible, combustible or explosive material
337416, 339147R, H01H 3776
Patent
active
043684521
ABSTRACT:
An electrical safety connector 10 provides a thermal linkage 12 between two female connectors 11. If a high resistance contact occurs at either connector 11, thermal linkage 12 melts and the molten material, of which thermal linkage 12 was comprised, flows under the influence of gravity to an expansion void 14 in an insulation sheath 13, thus interrupting current flow through connectors 11 and preventing the re-initiation of such current flow. Any potential fire hazard from the localized temperature rise at said high resistance contact is thereby eliminated. An alternate embodiment provides a male pigtail wire 17 for utilizing safety connector 10 in updating the wiring of early wired residences and other structures.
REFERENCES:
patent: 3180958 (1965-04-01), Merrill
patent: 3236976 (1966-02-01), Rayno
patent: 3304396 (1967-02-01), Hasson
patent: 3360623 (1967-12-01), Graziosi
patent: 3566008 (1971-02-01), Ettlinger
patent: 3585555 (1971-06-01), Yamada
patent: 3708611 (1973-01-01), Dinger
patent: 3916363 (1975-10-01), Jekai
The Family Handiman, 217th Edition, pp. 20-22, 62, Mar. 1981.
Beha Jr. William H.
Duffy James F.
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