Engine speed limiter for a hoist

Details Engine speed limiter for a hoist Engine speed limiter for a hoist

2006-02-28

2006-02-28

Marcelo, Emmanuel (Department: 3654)

Implements or apparatus for applying pushing or pulling force

Apparatus for hauling or hoisting load, including driven...

Device includes rotatably driven, cable contacting drum

C254S267000, C166S077510

Reexamination Certificate

active

07004456

ABSTRACT:
A mobile service rig for wells includes a hoist powered by an internal combustion engine. In response to the hoist exerting a predetermined lifting force, the lifting force is limited by automatically limiting or reducing the speed of the engine.

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