Timing device utilizing a unique clutch assembly

Details Timing device utilizing a unique clutch assembly Timing device utilizing a unique clutch assembly

1977-10-04

1980-02-05

Broome, Harold

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

With motor

335 68, H01H 354

Patent

active

041874846

ABSTRACT:
A timing device is provided with a synchronous motor for rotating a driven gear containing a cam member through a predetermined angle corresponding to a selected time period, a clutch mechanism including an arm supporting a pair of gears on a common shaft for coupling the synchronous motor to the driven gear and further including a means for keeping a first gear of the pair in continuous engagement with the driven gear, a plurality of leaf switches for selectively energizing or de-energizing the synchronous motor, an actuator cooperating with the cam member for controlling the leaf switches, an electromagnetic device coupled to the clutch arm and actuator for controlling their movements to couple the synchronous motor to a second gear of the pair and to control the starting of the timing interval, and a means for initially providing an angular rotation to the driven gear to set the selected time period.

REFERENCES:
patent: 3611216 (1971-10-01), Matsuo et al.
patent: 3693119 (1972-09-01), Nakama et al.
patent: 4080583 (1978-03-01), Fusita

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