Grapple pivot joint with swing dampener

Details Grapple pivot joint with swing dampener Grapple pivot joint with swing dampener

1981-09-08

1983-11-29

Cherry, Johnny D.

Handling: hand and hoist-line implements

Grapple

Well type

188 83, B66C 100, F16F 704

Patent

active

044177593

ABSTRACT:
A suspension for a grapple includes a swivel link coupled between a support boom and ahead of the grapple for permitting the latter to undergo swinging movement about first and second pivot axes arranged crosswise to each other. At each pivot axis, there is a pivot pin having a brake associated therewith.

REFERENCES:
patent: 1088450 (1914-02-01), Richards
patent: 1108663 (1914-08-01), Ashman
patent: 3168874 (1965-02-01), Atanasoff
patent: 3301587 (1967-01-01), Heikkinen
patent: 4335914 (1982-06-01), Korbel
Adv. brochure referring to ESCO Model 26 Grapple.
ESCO Catalog Supplement 1 (unnumbered and undated pages), bearing hand-written date of May 1978.

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