Earth working – With wheel substitute – Spaced parallel runners with tool mounted therebetween
Reexamination Certificate
2009-12-29
2011-12-27
Pezzuto, Robert (Department: 3671)
Earth working
With wheel substitute
Spaced parallel runners with tool mounted therebetween
C172S459000, C172S779000
Reexamination Certificate
active
08083005
ABSTRACT:
A land leveling device for leveling uneven surfaces. The land leveling device generally includes a frame adapted to be removably attached to a tractor. The frame will generally include a rear support, a first side support extending in a forward direction from a first end of the rear support and a second side support extending parallel to the first side support from a second end of the rear support. A central rod will preferably extend forward from a central point on the rear support parallel to and between the first side support and second side support. A pair of leveling members are each fixedly attached to the side supports at their respective ends and pivotally attached to the central rod. As the land leveling device passes over terrain, the leveling members automatically pivot about the central rod to adjust for uneven surfaces.
REFERENCES:
patent: 1303415 (1919-05-01), Thurston
patent: 1851064 (1932-03-01), Reifschneider
patent: 2014479 (1935-09-01), Martin
patent: 2503638 (1950-04-01), Shuey
patent: 2880528 (1959-04-01), Lusk
patent: 3276153 (1966-10-01), Sorensen
patent: 3798701 (1974-03-01), Irwin et al.
patent: 4082150 (1978-04-01), Winkles
patent: 4155316 (1979-05-01), Bailey et al.
patent: 4189009 (1980-02-01), Welch
patent: 4236586 (1980-12-01), Shader et al.
patent: 4320988 (1982-03-01), Seal
patent: 4337833 (1982-07-01), Welch
patent: 4572301 (1986-02-01), Bourgeois, Jr.
patent: 4585075 (1986-04-01), Mork
patent: 4655297 (1987-04-01), Bourgeois, Jr.
patent: 4892155 (1990-01-01), Wanamaker
patent: 4892437 (1990-01-01), Kraft
patent: 5024280 (1991-06-01), Mork
patent: 5191943 (1993-03-01), Minor et al.
patent: 5332331 (1994-07-01), Critz et al.
patent: 5397200 (1995-03-01), Seal
patent: 5511625 (1996-04-01), Mork
patent: 5771980 (1998-06-01), Mork
patent: 6000476 (1999-12-01), Gall
patent: 6283225 (2001-09-01), Hermonson
patent: 7273111 (2007-09-01), Johnson
patent: 7407339 (2008-08-01), Halonen et al.
patent: 2009/0092444 (2009-04-01), Schoen
McGowan Jamie L
Neustel Law Offices
Pezzuto Robert
LandOfFree
Land leveling device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Land leveling device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Land leveling device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4295009