Motor operator, with inherent decoupling characteristics,...

Details Motor operator, with inherent decoupling characteristics,... Motor operator, with inherent decoupling characteristics,...

2006-04-11

2006-04-11

Friedhofer, Michael A. (Department: 2832)

Electricity: circuit makers and breakers

Multiple circuit control

Operating means

C200S050320, C200S04800A, C200S331000

Reexamination Certificate

active

07026558

ABSTRACT:
A motor of a power switch motor operator has its motor shaft coupled to the output member of the operator, that connects with the power switch, through a drive assembly with at least one drive element continuously linked to the motor shaft, but not to the output member, and at least another drive element continuously linked to the output member, but not to the motor shaft. Temporary engagement of the mentioned drive elements, with motor operation of the power switch, is effected by temporary force transfer parts on the drive elements (e.g., a fixed post on one engaging a spring-loaded cam bar on the other) which inherently disengage following force transfer sufficient to operate the switch. The inherently decoupled state allows immediate straightforward manual operation by an operating member, even when the motor operator is at an overhead switch location, without any turning of the motor or engaging of the temporary force transfer parts during the manual operation.

REFERENCES:
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patent: 6818846 (2004-11-01), Roberts
Cleaveland/Price Inc., Bulletin DB-128CO1 (pub'd. 2001), “Motor Operators for Transmissionand Distribution Automation”.

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