192 clutches and power-stop control – Clutch and brake
Patent
1981-10-13
1984-04-03
Krizmanich, George H.
192 clutches and power-stop control
Clutch and brake
192 18B, B60K 4124
Patent
active
044402775
ABSTRACT:
An implement clutch and brake control for portable, engine-operated movable implement tools is described. The implement tool is controlled by a brake and clutch assembly operably connected between the implement tool and an implement engine. The assembly is normally biased as a brake to hold the implement tool stationary and is electrically operable as a clutch to drive the implement tool from the engine. The implement engine powers a voltage source to generate a voltage sufficient to operate the clutch. A "deadman switch" arrangement is operably connected between the voltage source and the clutch and brake assembly. Operator control of the switch maintains an electrical connection between the voltage source and the clutch and brake assembly. Resulting operation of the clutch operably drives the implement tool from the engine. Release of the switch electrically disconnects the voltage source from the clutch, disengaging the implement tool from the engine and engaging the brake to stop the implement tool and hold it stationary. Releasing the switch does not terminate operation of the engine, thereby obviating the need to restart the engine when further operation of the implement tool is desired.
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patent: 4181206 (1980-01-01), Seilenbinder
patent: 4236494 (1980-12-01), Fairchild
Krizmanich George H.
Morris Claude W.
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