Handling: hand and hoist-line implements – Hook – hoistline – or grab type – Load releasing means
Patent
1993-02-22
1993-12-28
Cherry, Johnny D.
Handling: hand and hoist-line implements
Hook, hoistline, or grab type
Load releasing means
294 8226, 294 8232, B66C 134
Patent
active
052733335
ABSTRACT:
A load hook assembly includes an upright support structure adapted for cable attachment to a lifting instrumentality such as a helicopter. A jaw assembly, carried by the support structure, has multiple, movable jaws which open and close relative a centrally disposed, fixed jaw. Each movable jaw is independently operated by an air cylinder coupled to a jaw associated toggle linkage. The movable jaws and the central, fixed jaw are spaced from one another when closed to permit lateral insertion of a ferrule on a load engaging choker cable. Each movable jaw is controlled in a remote manner by an operator to permit selective release of one or both loads. A method of load transport is also disclosed.
REFERENCES:
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patent: 3163401 (1964-12-01), Johnston et al.
patent: 3666216 (1972-05-01), Nagy et al.
patent: 4130313 (1978-12-01), Clifford
patent: 4173366 (1979-11-01), Mattei et al.
patent: 4682804 (1987-07-01), Palmer et al.
patent: 5040748 (1991-08-01), Torre et al.
Burley David E.
Hatfield Barry D.
Ingalls Steven L.
Cherry Johnny D.
Columbia Helicopters, Inc.
Givnan, Jr. James D.
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