Electricity: circuit makers and breakers – Toggle mechanisms
Patent
1993-03-22
1994-03-01
Recla, Henry J.
Electricity: circuit makers and breakers
Toggle mechanisms
200327, 200DIG42, 335166, 335168, 335 24, H01H 504
Patent
active
052909824
ABSTRACT:
A pair of lock links straddling and pivoted on the same pin as the latchable cradle of a circuit breaker follow the toggle device of the breaker either by riding on the toggle knee pin or through a pin which bears against the edges of the toggle arms. The lock links have extensions which engage the handle yoke to prevent the handle from being moved to the off position when the circuit breaker contacts are welded closed causing the toggle device to remain erected.
REFERENCES:
patent: 3605052 (1971-09-01), Dinond et al.
patent: 3783215 (1974-01-01), Broufield
patent: 3849751 (1974-11-01), Link et al.
patent: 4129762 (1978-12-01), Bruchet
patent: 4165453 (1979-08-01), Hennemann
patent: 5142112 (1992-08-01), Parks et al.
Beck Henry R.
Pipich Charles W.
Barrett Glenn T.
Moran M. J.
Recla Henry J.
Westinghouse Electric Corp.
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