Spreader including a detection system

Details Spreader including a detection system Spreader including a detection system

2007-08-28

2007-08-28

Mackey, Patrick (Department: 3652)

Handling: hand and hoist-line implements

Spacing hoist bar or frame

Adjustable to accommodate different size loads

C294S081100, C294S907000

Reexamination Certificate

active

10258398

ABSTRACT:
A spreader (1) for lifting a freight container (7, 17) comprises a frame (3, 4, 11) and two pairs of pickup elements (5). Each pair of pickup elements (5) are mounted at opposite ends of the frame (3, 4, 11) and the frame (3, 4, 11) is adjustable to adjust the separation of the two pairs of pickup elements (5). A detector (8) is movably mounted on the frame (3, 4, 11) for movement between a first position in which the detector (8) is closer to one pair of pickup elements (5) and a second position in which the detector (8) is closer to the other pair of pickup elements (5). The detector is adapted to detect a discontinuity in an object (7, 17) located below the spreader (1).

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