Earth working – Tool – standard or connection – Frame-supported blade – scraper – or smoother drawn by vehicle
Reexamination Certificate
2011-04-19
2011-04-19
Will, Thomas B (Department: 3671)
Earth working
Tool, standard or connection
Frame-supported blade, scraper, or smoother drawn by vehicle
C172S817000, C172S447000
Reexamination Certificate
active
07926583
ABSTRACT:
A tool carrier assembly of an earthworking implement is comprised of two components that contact a surface being worked; an earthworking tool and a depth guide. The tool carrier assembly is pivotably connected to a support structure. The support structure is removably attached to a lift arm assembly of a motive source. As the front wheels of the motive source are raised off the ground by downward force applied to the lift arm assembly, the depth guide assumes the function of bearing the load of the implement and a portion of the motive source. The vehicle steered and powered by the rear wheels may then move in any direction and the tool carrier assembly will articulate on a controllably variable vertical axis. As the earthworking tool moves material on the surface, the tool carrier pivots about a controllably variable horizontal axis to maintain contact with the surface as the tool carrier assembly pivots in response to uneven terrain.
REFERENCES:
patent: 43149 (1864-06-01), Wood
patent: 134527 (1873-01-01), Eastman
patent: 1717861 (1929-06-01), Washburn
patent: 1729399 (1929-09-01), Noe
patent: 1749544 (1930-03-01), Pagano
patent: 2590951 (1952-04-01), Farison
patent: 3645020 (1972-02-01), Beslin et al.
patent: 3873088 (1975-03-01), Panepinto
patent: 4124080 (1978-11-01), McCanse
patent: 5033740 (1991-07-01), Schwartz et al.
patent: 5076370 (1991-12-01), Stubben et al.
patent: 5209307 (1993-05-01), Hotte
patent: 5377984 (1995-01-01), Ciccia
patent: 5533283 (1996-07-01), Roth
patent: 5533952 (1996-07-01), Schaber
patent: 5603172 (1997-02-01), Maher
patent: 5782016 (1998-07-01), Feller et al.
patent: 5921902 (1999-07-01), Carpenter
patent: 6109363 (2000-08-01), High
patent: 6240662 (2001-06-01), Borowiak
patent: 6431288 (2002-08-01), Hoffart
patent: 6450929 (2002-09-01), Markham
patent: 6692415 (2004-02-01), Winston
patent: 6851486 (2005-02-01), Marshall
patent: 6923750 (2005-08-01), Hinds
patent: 2003/0016982 (2003-06-01), Nicolay et al.
patent: 2003/0136568 (2003-07-01), McReynolds et al.
patent: 2003/0139264 (2003-07-01), Kuo
patent: 2339153 (2000-01-01), None
www.nefitco.com (bars and cable attachments).
McGowan Jamie L
Will Thomas B
LandOfFree
Zero turning radius earthworking implement does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Zero turning radius earthworking implement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Zero turning radius earthworking implement will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2673856