Harvesters – Raking and bundling
Reexamination Certificate
2000-06-15
2001-11-13
Pezzuto, Robert E. (Department: 3671)
Harvesters
Raking and bundling
C198S497000, C198S693000, C056S364000
Reexamination Certificate
active
06314708
ABSTRACT:
The present invention relates to a rotary conveyor for a large round baler and more specifically relates to a stripper for rigid tines of the conveyor.
BACKGROUND OF THE INVENTION
U.S. patent application Ser. No. 09/436,329, filed on Nov. 8, 1999, discloses a rotary conveyor including rigid tines that are formed from a flat plate, and with the tines each rotating between a pair of closely spaced, oval-shaped plastic strippers which act to strip material off the tines. These plastic strippers are not entirely satisfactory since their wear life is not as great as desired and also because as the strippers become excessively worn their profile changes to such an extent that a shearing action occurs between the stripper and the tines rather than a more desirable scissors action.
SUMMARY OF THE INVENTION
According to the present invention there is provided a stripper design which represents an improvement over the aforementioned known stripper.
An object of the invention is to provide a plastic stripper having a greatly improved wear life as compared to that of the prior art stripper.
A more specific object of the invention is to provide a stripper constructed so as to have one or more of the features of: (a) being of increased cross section in high wear areas, (b) being concave in cross section so as to orient or channel crop before the crop enters the baling chamber, (c) being constructed of a plastic having a relatively long wear life, and (d) being constructed of identical halves that can be inverted so as to double the life of the halves.
These and other objects will become apparent from a reading of the ensuing description together with the appended drawings.
REFERENCES:
patent: 4085573 (1978-04-01), Marsh
patent: 4484684 (1984-11-01), Tetreault
patent: 5595055 (1997-01-01), Horchler, Jr. et al.
patent: 5848523 (1998-12-01), Engel et al.
patent: 5979153 (1999-11-01), Roth
patent: 0803184 (1997-10-01), None
Deere & Company
Mammen Nathan
Pezzuto Robert E.
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