Electronic circuit of an electromagnetic clutch

Details Electronic circuit of an electromagnetic clutch Electronic circuit of an electromagnetic clutch

1994-09-13

1996-05-07

Fleming, Fritz M.

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

For relays or solenoids

361143, 361180, H01H 4712, A01D 6908, F16D 4806

Patent

active

055152333

ABSTRACT:
An electric control circuit of an electromagnetic clutch includes a relay-controlled, two-position switch which operates, in response to a power source being disconnected from the switch relay and the clutch, to establish a path to ground through which the induced voltage of the clutch may be dissipated to thereby speed up the disengagement of the clutch once power thereto is discontinued. The control circuit may be that employed in a self-propelled forage harvester equipped with a metal detector, the latter including a normally closed relay switch which opens in response to metal being sensed to thereby de-energize the clutch and two-position switch relay.

REFERENCES:
patent: 2615945 (1952-10-01), Jaeschke
patent: 3581156 (1971-05-01), Meudon
patent: 3586920 (1971-06-01), Wakamatsu
patent: 3736473 (1973-05-01), Pugh
patent: 3757501 (1973-09-01), Bennett, Jr. et al.
patent: 3805497 (1974-04-01), Ross
patent: 3805798 (1974-04-01), Girodat

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