Remote-controlled safety hook assembly

Details Remote-controlled safety hook assembly Remote-controlled safety hook assembly

1977-08-12

1979-04-17

Cherry, Johnny D.

Handling: hand and hoist-line implements

Hook, hoistline, or grab type

Locking device

294 75, B66C 138

Patent

active

041497465

ABSTRACT:
A remote-controlled safety hook assembly which comprises a supporting frame, a hook-shaped member rotatably disposed within the supporting frame, spring-biased shackles suspended from the supporting frame, a drive element disposed in the supporting frame and a gear assembly operatively connected with the drive element and the hook-shaped member for automatically swinging the hook-shaped member from a closed position to an open position in response to a specified control signal.

REFERENCES:
patent: 1221693 (1917-04-01), Crosby
patent: 1825018 (1931-09-01), Smith
patent: 2340906 (1944-02-01), Suarez
patent: 2852217 (1958-09-01), Engelhardt
patent: 3056624 (1962-10-01), Nardone
patent: 3239266 (1966-03-01), Elliott
patent: 3268967 (1966-08-01), Jordan
patent: 3393001 (1968-07-01), Beckwith

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