Harvesters – Motorized harvester – Having motor on ground-supported carrier
Reexamination Certificate
1999-06-29
2001-09-04
Pezzuto, Robert E. (Department: 3671)
Harvesters
Motorized harvester
Having motor on ground-supported carrier
C056S320100
Reexamination Certificate
active
06282874
ABSTRACT:
FIELD OF THE INVENTION
This invention relates to an improved mower deck.
BACKGROUND OF THE INVENTION
Rotary mower decks typically have a single or multiple blade which cuts vegetation by the rotation of such blades in a controlled area such as underneath a mower deck. Typically, this mower deck includes a single discharge chute which faces either to the side or, occasionally, to the rear of the associated frame which supports same for travel over the ground. These mower decks need a large volume of air in order to provide for the movement of grass clippings underneath the deck and through the discharge chute. Typically, this volume of air is provided by having the lower lip of the lower deck spaced from the ground such that the needed air can travel between the mower deck and the ground before being passed through the discharge chute. However, this distance provides for a space wherein the noise of the blades can pass to the outside world and, in addition, limits the shortest length of cut for the blades.
OBJECTS OF SUMMARY OF THE INVENTION
It is an object of this present invention to increase the efficiency of mower decks.
It is another object of the present invention to allow for increased depth of the sidewall of a mower deck.
It is yet another object to the present invention to increase the efficiency of the dispersal of grass clippings in a mower deck.
It is still another object of present invention to reduce the plugging and/or to grass built-up within the confines of the mower deck.
It is a further object of the present invention to increase the bagging efficiency of mower decks.
REFERENCES:
patent: 3593505 (1971-07-01), Mittelstadt
patent: 4488395 (1984-12-01), Mack
patent: 4565268 (1986-01-01), Yamamoto et al.
patent: 4693063 (1987-09-01), Hoepfner et al.
patent: 4905461 (1990-03-01), Heuer
patent: 5435118 (1995-07-01), Cobile
Miller Michael
Schaedler Axel
Emerson Roger D.
Emerson & Skeriotts
MTD Products Inc
Pezzuto Robert E.
Skeriotis John M.
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