Hoist apparatus for annular member

Details Hoist apparatus for annular member Hoist apparatus for annular member

1997-03-24

1998-08-25

Kramer, Dean

Handling: hand and hoist-line implements

Grapple

Expanding

294 6731, B66C 162

Patent

active

057976384

ABSTRACT:
An annular member hoist apparatus which lifts an annular member and carries and positions the annular member at a predetermined location by a carrier apparatus fitted with an elevator mechanism, including a suspension member suspended from the elevator mechanism, and a plurality of support arms which extend out radially in a horizontal plane from the suspension member. Each of the support arms has an engagement tip portion for supporting the annular member from inside the annular member.

REFERENCES:
patent: 186943 (1877-02-01), Moore
patent: 2789859 (1957-04-01), Woellner
patent: 2923569 (1960-02-01), Milliron
patent: 4474400 (1984-10-01), Toffolon
patent: 5306062 (1994-04-01), Dodge

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