Handling: hand and hoist-line implements – Hoistline attached load supporting frame – Load leveling or shifting
Reexamination Certificate
2006-05-09
2006-05-09
Crawford, Gene O. (Department: 3651)
Handling: hand and hoist-line implements
Hoistline attached load supporting frame
Load leveling or shifting
C114S051000, C212S308000, C414S137800, C414S142800
Reexamination Certificate
active
07040680
ABSTRACT:
In a load handling device for use with a load having a lifting attachment, the lifting attachment being so attached to the load that, when the load is suspended by the lifting attachment, the load is free to pivot relative to the lifting attachment about at least one axis. The load handling device engages the lifting attachment raises the load; so that it is suspended by the lifting attachment, and lowers it. The load handling device includes a stabiliser movable between a retracted position in which it is substantially clear of the load and an extended position in which it contacts the load on either side of the said axis to limit or control pivoting movement of the load about that axis. The stabiliser may be moveable by a plurality of hydraulic rams connected in a closed loop system. Restriction of the flow of the hydraulic fluid between the rams acts to damp movement of the load.
REFERENCES:
patent: 3401804 (1968-09-01), Link
patent: 3955522 (1976-05-01), Gaudiano et al.
patent: 4658750 (1987-04-01), Malcosky
patent: 4662300 (1987-05-01), McCallum et al.
patent: 4869149 (1989-09-01), Cavannagh et al.
patent: 5042415 (1991-08-01), Hoffman
patent: 19804219 (1999-08-01), None
patent: 1522131 (1978-08-01), None
patent: 2003 815 (1979-03-01), None
patent: 2217671 (1989-11-01), None
patent: WO 83/03815 (1983-11-01), None
Crawford Gene O.
Deuble Mark A.
Rothwell Figg Ernst & Manbeck
The Engineering Business Limited
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