Harvesters – Cutting – Rotating-cutting-disk type
Reexamination Certificate
2005-02-22
2009-02-17
Bryant, David P (Department: 3726)
Harvesters
Cutting
Rotating-cutting-disk type
C029S402030, C029S428000, C029S464000, C056S012700, C056S013600, C056S295000
Reexamination Certificate
active
07490459
ABSTRACT:
A mowing device including a disc, the disc providing a mount for at least one knife, said knife being pivotably mounted to said disc by a pivot pin, said pivot pin defining a mounting axis, such that the knife can rotate about said pivot pin between a first extended position and any retracted position, said disc being constructed of a basic material thickness and comprising a mounting surface; said mowing device including a knife adapter comprising a cylindrical aperture and a projection; said pivot pin comprising a first cylindrical section of a first diameter to fit into said cylindrical aperture in said knife adapter, and a second cylindrical section, of a second diameter, with a groove defined by a groove width and a pin section thickness at the groove of a dimension less than said second diameter; said mowing device including a retainer constructed of a material thickness equal to or less than the width of said groove, with a key-hole shaped aperture defined by a first circular section with a first inside diameter larger than said second diameter of said pin and a slot shaped section with a width that is greater than said pin section thickness but less than said second diameter of said pivot pin; wherein said slot-shaped section of the retainer engages said groove of said pivot pin to retain said pivot pin while said projection of said knife adapter engages said retainer.
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Bentzinger Rustin V.
Koorn Martin
Thompson Kent
Bryant David P
Sturm & Fix LLP
Taousakis Alexander P
Vermeer Manufacturing Company
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