Alternate on-off switch mechanism

Details Alternate on-off switch mechanism Alternate on-off switch mechanism

1982-12-29

1985-01-22

Shepperd, John W.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200153LA, 200284, H01H 312, H01H 1356

Patent

active

044953917

ABSTRACT:
An alternate mechanism comprising a plunger (4) supported for a linear movement, a rotary cam (71) rotatably supported by the plunger, a spring (43) for biasing the plunger toward an original position (P.sub.1) of the plunger, a first stationary cam (76) which as the plunger is pushed to a first position (P.sub.2, P.sub.3) against the spring, is adapted to be engaged with the rotary cam so as to rotate the rotary cam by a predetermined angle, and a second stationary cam (32) which as the plunger supporting the rotary cam at the predetermined angle returns from the first position, is engaged with the rotary cam so as to lock the plunger in a second position (P.sub.4), and as the plunger locked in the second position is pushed again, the rotary cam is further rotated by the first stationary cam so as to be disengaged from the second stationary cam when the plunger returns to the second position.

REFERENCES:
patent: 1352889 (1920-09-01), Gallo et al.
patent: 2749415 (1956-06-01), Davis
patent: 2890387 (1959-06-01), Wiley et al.
patent: 3619532 (1971-11-01), Lyvang
patent: 4129764 (1978-12-01), Ohkita et al.

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