Material or article handling – Vertically swinging load support – Shovel or fork type
Reexamination Certificate
2003-07-02
2011-12-06
Underwood, Donald (Department: 3652)
Material or article handling
Vertically swinging load support
Shovel or fork type
C212S281000, C212S278000
Reexamination Certificate
active
08070413
ABSTRACT:
A control system for a machine which includes a load handling apparatus for moving a load relative to a body of the machine. The machine includes a pivot about which a tipping moment is produced by the load. The load handling apparatus includes an actuator capable of moving the load to a position at which the tipping moment is at a threshold value. The control system is responsive to a tipping moment sensor to control operation of the actuator to progressively reduce the speed of movement of the load as the threshold value of the tipping moment is approached.
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Brooks Richard Anthony
Jowett Peter
J. C. Bamford Excavators Limited
MacMillan Sobanski & Todd LLC
Underwood Donald
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