Electricity: electrothermally or thermally actuated switches – Electrothermally actuated switches – Fusible element actuated
Patent
1976-05-24
1977-07-12
Hickey, Robert J.
Electricity: electrothermally or thermally actuated switches
Electrothermally actuated switches
Fusible element actuated
337242, 337266, 340 80, 340250, H01H 8530, B60Q 126
Patent
active
040357546
ABSTRACT:
Fuse boxes for motor vehicles, in which fuse elements are carried on a support plate mounted on a box containing a light source. Each fuse element has a region of small cross-section overlying a respective one of a plurality of apertures in the support plate. When the small cross-section region of a fuse element melts the underlying aperture is exposed. Light from the light source passes out through said aperture to illuminate a circuit symbol adjacent the support plate thereby giving a visible indication of fuse element failure.
REFERENCES:
patent: 2276785 (1942-03-01), La Mar
patent: 3975708 (1976-08-01), Lusk et al.
General Motors Corporation
Hickey Robert J.
Hill Warren D.
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