Harvesters – Motorized harvester – Having motor on ground-supported carrier
Reexamination Certificate
2011-03-22
2011-03-22
Pezzuto, Robert E (Department: 3671)
Harvesters
Motorized harvester
Having motor on ground-supported carrier
C056S249000
Reexamination Certificate
active
07908834
ABSTRACT:
A grass cutting unit (1) includes a frame (2) and, provided in connection with the frame: a cutter (3) for cutting grass and support elements (4; 41, 42) for supporting the cutting unit (1) against the ground, particularly when cutting grass. The cutting unit (1) is provided with a cutting height setting device. In a most preferred embodiment of the invention, the cutting height setting device includes two lead screws (7; 71, 72; 73, 74) that are connected to the ends of both support reels (4; 41, 42), and the corresponding nut elements are connected to the frame; by rotating the lead screws by driving motors, advantageously electric motors (6; 61, 62), each support reel can be moved essentially in the vertical direction, and simultaneously the cutting height can be adjusted within the desired limits.
REFERENCES:
patent: 1095097 (1914-04-01), Fournet
patent: 3099124 (1963-07-01), Strasel
patent: 5203151 (1993-04-01), Mills
patent: 7377092 (2008-05-01), Schmidt et al.
patent: 2004/0216439 (2004-11-01), Poulson et al.
patent: 1495661 (2005-01-01), None
International search report in corresponding PCT/FI2007/000097.
Actioneco Oy
Pezzuto Robert E
Young & Thompson
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