Harvesters – Motorized harvester – Including motorized vehicle causing transit of harvester
Reexamination Certificate
2006-12-12
2006-12-12
Petravick, Meredith C. (Department: 3671)
Harvesters
Motorized harvester
Including motorized vehicle causing transit of harvester
C056S015500
Reexamination Certificate
active
07146787
ABSTRACT:
Disclosed is a self propelled walk behind mower comprised of a tractor unit and a mowing deck. The tractor unit is hydrostatically driven with a unique control system whereby the forward speed of the tractor is set by operating an electric rocker switch with an operator's thumb. Hand levers are used to turn the tractor to the left and the right. The tractor unit comprises two drive wheels and a third wheel that is pivotally attached, letting the tractor unit stand upright when no implements are attached. Implements attach to the front of the tractor through a movable attachment so that the tractor and implement can closely follow the contour of the ground while keeping the operator controls in a convenient position.
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Kota et al., Design of Compliant Mechanisms: Applications to MEMS, found at www.engin.umich.edu/labs/csdl/papers/dsignofcm.pdf on Apr. 24, 2006.
What are Compliant Systems? found at http://www.fixsys.com/comp-sys.shtml on Apr. 24, 2006.
Cochran William W.
Cochran Freund & Young LLC
Petravick Meredith C.
Walker Manufacturing Company
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