Snubbing apparatus for grapples and the like

Details Snubbing apparatus for grapples and the like Snubbing apparatus for grapples and the like

1984-04-26

1986-02-25

Cherry, Johnny D.

Handling: hand and hoist-line implements

Grapple

Swing dampener

188 74, 188 78, 188 83, 188343, B66C 100, F16F 706

Patent

active

045725675

ABSTRACT:
A snubbing device for a suspended grapple or the like operable by pressurized fluid in a cavity between a pin and housing of a universal joint which actuates a ramp to cause a retarding reaction between the pin and housing to prevent free swinging of the grapple.

REFERENCES:
patent: 3009747 (1961-11-01), Pitzer
patent: 3301587 (1967-01-01), Heikkinen
patent: 3420548 (1969-01-01), Wakeman
patent: 3592503 (1971-07-01), Lundberg
patent: 4099761 (1978-07-01), Cullings
patent: 4425050 (1984-01-01), Durand

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