Harvesters – Motorized harvester – With selective control of drive means
Patent
1990-03-26
1990-12-18
Novosad, Stephen J.
Harvesters
Motorized harvester
With selective control of drive means
56 119, 56 147, 56 169, 56DIG10, 180235, 180242, A01D 3464, A01D 3476, A01D 6903
Patent
active
049777327
ABSTRACT:
A powereed riding tractor lawn mower suited to uneven terrain has four fluid motor powered driven wheels and includes a frame comprising front and rear frame sections connected for pivoting about a first axis between the sections and normal to the ground plane. The rear frame section is in turn made up of forward and rearward portions, the rearward portion of which pivots about a second axis which intersects and is perpendicular to the first axis enabling the rear wheels to pivot about both axis. Sterring is accomplished by a steering mechanism which changes the angular relation of the frame sections.
REFERENCES:
patent: 3402536 (1968-09-01), Hale et al.
patent: 3408798 (1968-11-01), Hale et al.
patent: 3742685 (1973-07-01), Lian et al.
patent: 3771296 (1973-11-01), Sorenson et al.
patent: 3927510 (1975-12-01), Arnblock
patent: 4514967 (1985-05-01), Scanland et al.
patent: 4679382 (1987-07-01), Saruhashi et al.
patent: 4876846 (1989-10-01), Torras
patent: 4889089 (1989-12-01), Fujikawa et al.
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