192 clutches and power-stop control – Clutches – Operators
Patent
1975-09-11
1977-06-21
Herrmann, Allan D.
192 clutches and power-stop control
Clutches
Operators
192 90, 192111A, F16D 1375, F16D 2710
Patent
active
040305830
ABSTRACT:
An electromagnetic clutch device for transmitting torque from an input means to an output means. The clutch actuating means includes an electromagnetic means, a driving means, an armature coaxially disposed with the input means and threadedly connected to a driving friction ring member, said armature responsive to said electromagnetic winding and said friction ring member being allowed to adjust with respect to said armature for driving the output means. The relative position between the armature and the driving friction ring member is maintained by a retarder disposed coaxially with the armature. The retarder permits relative rotational motion between the driving friction ring member and the armature in one direction and prevents relative motion between said armature and ring member in the other opposite direction. The fail-safe feature is such that when the electromagnetic means is energized no torque is transmitted from the input means to the output means. Upon failure of the electromagnetic means the clutch becomes engaged and continuously transmits torque from the input means to the output means.
REFERENCES:
patent: 3677377 (1972-07-01), Miller
patent: 3679034 (1972-07-01), Miller
patent: 3724619 (1973-04-01), Miller
patent: 3789966 (1974-02-01), Miller
Facet Enterprises Inc.
Herrmann Allan D.
Van Ophem Remy J.
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