Hydraulic snubber for grapple and method

Details Hydraulic snubber for grapple and method Hydraulic snubber for grapple and method

1988-03-07

1989-03-07

Marbert, James B.

Handling: hand and hoist-line implements

Grapple

Swing dampener

188381, B66C 100, F16F 900

Patent

active

048100200

ABSTRACT:
A hydraulic snubber for a skidding grapple employing an internal piston, the piston having associated therewith a line type seal to prevent leakage of pressure fluid against a friction disc and wherein the passage providing pressure fluid to the piston is equipped with a special fitting to prevent overload.

REFERENCES:
patent: 4553778 (1985-11-01), Tyer
patent: 4572567 (1986-02-01), Johnson
patent: 4573728 (1986-03-01), Johnson
patent: 4609081 (1986-09-01), Hungerford
patent: 4679839 (1987-07-01), Damron
patent: 4717191 (1988-01-01), Farmer

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