Handling: hand and hoist-line implements – Grapple – Swing dampener
Patent
1991-01-16
1992-03-17
Cherry, Johnny D.
Handling: hand and hoist-line implements
Grapple
Swing dampener
188 83, 188367, B66C 100, F16F 704
Patent
active
050962477
ABSTRACT:
A hydraulic supply system for a snubber including spaced check valves in the snubber housing supply passage and a relief passage connected to the supply passage between the check valves.
REFERENCES:
patent: 4723639 (1988-02-01), Hungerford
patent: 4810020 (1989-03-01), Powell
Cherry Johnny D.
ESCO Corporation
LandOfFree
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