Lifting device

Details Lifting device Lifting device

1982-09-07

1984-07-17

Marbert, James B.

Handling: hand and hoist-line implements

Grapple

Expanding

B66C 144

Patent

active

044602103

ABSTRACT:
A device for lifting objects with an annular opening is disclosed. A handle mounted within a housing is linked to legs. When the handle is moved vertically up or down, the legs are extended or retracted. A locking mechanism provides a means to maintain the legs in a retracted position for easy insertion into the annular opening.

REFERENCES:
patent: 1357099 (1920-10-01), Land et al.
patent: 2670233 (1954-02-01), Barchoff
patent: 2809070 (1957-10-01), Nelson
patent: 3104126 (1963-09-01), Lovash

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