Land vehicles – Wheeled – Articulated vehicle
Patent
1993-05-10
1993-11-30
Focarino, Margaret A.
Land vehicles
Wheeled
Articulated vehicle
280511, 2804901, B60D 107
Patent
active
052658996
ABSTRACT:
An adjustable ball hitch having a shank received in a towing bracket on a towing vehicle, a pair of horizontally spaced vertical support arms connected eccentrically with respect to the shank, a rotatable ball support consisting of a triangular yolk having a triangular opening therethrough and three horizontally extending external surfaces, a radial spoke centrally attached to each of the three surfaces and extending outwardly from the yolk, a ball mounted on the distal end of each spoke, the balls being of three respectively different sizes, first and second pairs of aligned triangular openings provided in the arms, the second pair of aligned triangular openings being vertically offset from the first pair of triangular openings, all of the triangular openings being of the same size, a triangular pin having an outer triangular cross-sectional shape slightly smaller than the triangular openings adapted to be inserted through the first pair of aligned openings and through the opening in the yolk and also adapted to be inserted through the second pair of aligned openings and through the triangular opening in the triangular yolk as an alternate offset position for the triangular yolk.
REFERENCES:
patent: 2872213 (1959-02-01), Hosford
patent: 2911233 (1959-11-01), Riddle
patent: 3717362 (1973-02-01), Johnson
patent: 3801134 (1974-04-01), Dees
patent: 3922006 (1975-11-01), Borges
patent: 4248450 (1981-02-01), McWethy
patent: 4266799 (1981-05-01), Wood
patent: 4456279 (1984-06-01), Dirck
patent: 4729571 (1988-03-01), Tienstra
patent: 5044652 (1991-09-01), Brisson
patent: 5106114 (1992-04-01), Haupt
patent: 5158316 (1992-10-01), Hutchmacher
Dorman William S.
Focarino Margaret A.
Johnson Victor E.
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