Handling: hand and hoist-line implements – Grapple – Multiple grapples for multiple objects
Patent
1997-07-08
1999-12-21
Cherry, Johnny D.
Handling: hand and hoist-line implements
Grapple
Multiple grapples for multiple objects
294 95, 294113, 294902, 414607, 414623, B66F 918
Patent
active
060039175
ABSTRACT:
A clamping apparatus for lifting objects includes a frame and two or more clamping arms pivotably supported by the frame for movement into and out of contact with an object to be lifted. An internal support is supported by the frame for reinforcing the inner walls of a cavity in the object to be lifted. The insert may be supported by the frame for vertical movement with respect to the frame so that when the insert is not needed, it can be raised above the object. The insert may passively reinforce a cavity, or it may be equipped with movable reinforcing portions which can be moved into and out of contact with the walls of the cavity which is to be reinforced.
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Cherry Johnny D.
Tygard Machine and Manufacturing Co.
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