Variable-speed load-dependent drive and hoist system

Details Variable-speed load-dependent drive and hoist system Variable-speed load-dependent drive and hoist system

2008-04-08

2008-04-08

Brahan, Thomas J. (Department: 3654)

Traversing hoists

Having random condition sensor combined with an indicator or...

Means determining overloading produced by load

C212S344000, C212S345000

Reexamination Certificate

active

11196137

ABSTRACT:
In an embodiment, a crane including a hoisting (i.e., load-lifting) mechanism is provided with a variable-speed load-dependent control system and method for operating functions of the crane. An exemplary control system includes an actuator subsystem for performing at least one function of the crane, a sensor for detecting the magnitude of the load lifted by the hoisting mechanism and a controller that communicates with the sensor, wherein, relative to a load signal from the sensor, the controller transmits a speed signal to vary an operating speed of at least one actuator of the actuator subsystem.

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