Earth working – Tool – standard or connection – Spring biased or formed tool or tool part
Reexamination Certificate
2005-08-09
2005-08-09
Will, Thomas B. (Department: 3671)
Earth working
Tool, standard or connection
Spring biased or formed tool or tool part
C172S261000
Reexamination Certificate
active
06926093
ABSTRACT:
A mechanism for mounting a soil leveling device to the mounting arm of a leveling attachment operates in either a fixed setting or a floating setting. The mechanism includes a rearwardly extending carrier arm which carries the soil leveling device at its distal end. The carrier arm is pivotably connected at its proximal end to the mounting arm of the leveling attachment for upward and downward movement. A connecting link is mounted to the mounting arm and a spring assembly extends between the link and the carrier arm. The connecting link is selectively operable in either a fixed setting or a released, floating setting. When the connecting link is in the fixed setting, the spring assembly biases the carrier arm and the leveling device with a downward force. When the connecting link is in the floating setting, the leveling device can move across a soil surface free of a downward bias from the spring assembly.
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p. 4 from Krause Plow Corporation's Operating Instructions dated Oct. 2000 showing assigne's prior reel mechanism. See note 4 in upper right.
pp. 8 and 9 from a DMI owner's manual dated Feb. 2001. Attention is directed to the Figure on p. 8 and Figures 2 and 3 on p. 9.
Exerpt from literature by Wil-Rich Manufacturing of Wahpeton, ND showing a basket assembly having a quick release mechanism. Date believed to be prior to Aug. 21, 2002.
Advertixing literature by Remlinger Mfg. Co., showing basket assembly with “spring adjustable arms”, Apparatus shown believed to be on sale prior to Aug. 21, 2002.
Great Plains Mfg., Inc. Brochure, p. 17, Believed to be dated Aug. 2001, See picture at lower right of “spring loaded reel”.
John Deere sales brochure entitled Seedbed Tillage believed to be published in Oct. of 2001, p. 23. See “3-bar spike-tooth harrow with rolling basket” at top of page.
Fink Jerome Thomas
Hagman Rodney Lee
Krause Plow Corporation, Inc.
Pechhold Alexandra
Will Thomas B.
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