Patent ID: 6193086
Filing Date: 2001-02-27
Classification: B66C

Abstract:
A crane comprising:a frame having at least one moveable component operably coupled thereto;a power means for moving the moveable component;a control having a non-activated mode and an activated mode, the control being manually articulable and variably positional in its activated mode;a first control circuit responsive to the control when connected thereto, the first control circuit providing a first control signal to the power means, the first control signal varying according to varied position of the control in its activated mode, the power means being responsive to the first control signal and moving the moveable component at a speed varying with the position of the control;a second control circuit responsive to the control when connected thereto, the second control circuit providing a second control signal to the power means, the power means being responsive to the second control signal for moving the moveable component;an actuator for optionally electrically connecting the first and second control circuits to the power means; and,wherein the control is positional in a first, neutral range of positions, a second range of positions in which the first control circuit is responsive the control's position, and a third range of positions in which the second circuit is responsive to the control's position.