Earth working – Mast type hitch – Sway limiting means or swayable tool
Patent
1988-09-19
1989-09-05
Johnson, Richard J.
Earth working
Mast type hitch
Sway limiting means or swayable tool
280474, A01B 59041
Patent
active
048629715
ABSTRACT:
A sway limiting apparatus for a tractor hitch assembly including draft links which are vertically movable between a lower operative position and an upper transport position. The sway limiting apparatus includes a telescopic linkage assembly whose operative effectiveness in limiting lateral sway of the hitch assembly is controlled by a cam defining a cam profile. The cam profile and the linkage assembly cooperate to normally control lateral sway of the hitch assembly as a function of the vertical position of a draft link relative to the horizontal.
REFERENCES:
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patent: 3709304 (1973-01-01), Haupt
patent: 3888316 (1975-06-01), Azzarello et al.
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patent: 4236724 (1980-12-01), Schillings
patent: 4640522 (1987-03-01), Teich
patent: 4650206 (1987-03-01), Mathis
Azzarello Joseph A.
San Luis Carlos T.
Wagenbach Gerald L.
J. I. Case Company
Johnson Richard J.
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