Safety hook device

Details Safety hook device Safety hook device

1979-09-17

1981-07-07

Cherry, Johnny D.

Handling: hand and hoist-line implements

Hook, hoistline, or grab type

Locking device

294104, B66C 136

Patent

active

042770939

ABSTRACT:
A safety hook device used to couple with objects to be transported overhead is disclosed having a coupling rod at least partially enclosed within a rotatable housing when coupled with the object so that the danger of involuntary uncoupling is lessened. This invention is also adapted to provide for automatic coupling and/or uncoupling.

REFERENCES:
patent: 408620 (1889-08-01), Hitchcock
patent: 1533995 (1925-04-01), Lang
patent: 1888083 (1932-11-01), Holtz
patent: 2357054 (1944-08-01), Muddiman
patent: 2445106 (1948-07-01), Dempster
patent: 2860909 (1958-11-01), Isaac
patent: 3929231 (1975-12-01), Cook

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