Drive mechanism for circuit interrupters

Details Drive mechanism for circuit interrupters Drive mechanism for circuit interrupters

1993-07-16

1995-07-25

Pellinen, A. D.

Electricity: circuit makers and breakers

Multiple circuit control

Operating means

218 84, 218118, H01H 3366

Patent

active

054364140

ABSTRACT:
A drive mechanism for a circuit interrupter comprising a crank and lever pivotally interconnected by a resiliently yielding connecting rod assembly. The connecting rod assembly comprises a coil compression spring and first and second links slidably coupled together to compress the coil compression spring. Rotation of the crank in either direction causes the lever to drive the movable contact of the circuit interrupter into and out of engagement with the stationary contact. The coil compression spring is loaded under compression when the movable contact is driven into engagement with the stationary contact, storing and maintaining a mechanical static load on the movable contact for as long as the movable contact is engaged with the stationary contact.

REFERENCES:
patent: 3898407 (1975-08-01), Hodgson
patent: 4376235 (1983-03-01), Milianowicz
patent: 4384179 (1983-05-01), Milianowicz
patent: 4654494 (1987-03-01), Wuthrich
patent: 4996397 (1991-02-01), Kuhn et al.
patent: 5055640 (1991-10-01), Lippi et al.

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