Air balance hoist with load position indicator

Details Air balance hoist with load position indicator Air balance hoist with load position indicator

1994-03-21

1996-02-20

Stodola, Daniel P.

Implements or apparatus for applying pushing or pulling force

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

Device includes rotatably driven, cable contacting drum

254360, B66D 148

Patent

active

054923069

ABSTRACT:
An air balancing hoist having one or more activators providing a signal when a load reaches one or more predetermined heights. The activators each comprise spring loaded plungers mounted to be shifted from an axial location by movement of the drum spool to a predetermined axial location.

REFERENCES:
patent: 3260508 (1966-07-01), Powell
patent: 3656715 (1972-04-01), Powell
patent: 3933388 (1976-01-01), Conboy
patent: 3960362 (1976-06-01), Griffiths et al.
patent: 4403130 (1983-09-01), Baker
patent: 5370367 (1994-12-01), Zaguroli, Jr.

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