Earth working – Tool – standard or connection – Subsoilers
Reexamination Certificate
2004-11-15
2008-11-04
Will, Thomas B (Department: 3671)
Earth working
Tool, standard or connection
Subsoilers
C172S824000
Reexamination Certificate
active
07445053
ABSTRACT:
A ripper assembly is arranged in that one end of an arm is pivotally attached to a vehicle body while a beam comprised with shanks is pivotally attached to the other end of the arm, and in that a tilt cylinder and a lift cylinder are respectively interposed between the vehicle body and the beam at a position upward of the arm. One end side of the lift cylinder is pivotally attached, on a vehicle body side, at a position upward of a vehicle body-sided pivotally supporting portion of the tilt cylinder. The other end side of the lift cylinder is pivotally attached, on a beam side, at a position downward of a beam-sided pivotally supporting portion of the tilt cylinder.
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Herbert L. Nichols, Jr.; “Moving The Earth”; 1976, Third Edition, pp. 21-4 and 5; North Castle Books; Connecticut.
Arakawa Kazuya
Matsumoto Norihisa
Global IP Counselors, LLP
Komatsu Ltd.
McGowan Jamie L
Will Thomas B
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