Earth working – With drive means for tool or cleaner – Attendant supported tool
Reexamination Certificate
2008-07-01
2008-07-01
Fábián-Kovács, Arpád (Department: 3671)
Earth working
With drive means for tool or cleaner
Attendant supported tool
C172S540000
Reexamination Certificate
active
07392853
ABSTRACT:
The invention features an elongated blade having at least one first tooth near a first end extending in one direction and at least one second tooth near a second end extending in the opposite direction. The body of the blade can be a generally rectangular plate. There can be at least two first and second teeth. The blade can include four corners, wherein at the first end the first teeth are formed in the first edge and at the second end the second teeth are formed in the second edge. Edges of the blade can be formed without teeth near two corners and can be sharpened or not. The teeth may extend different distances from the blade. The blade cuts into a surface. In one application, the blade is used for edging or trenching and is rotated generally vertically so as to penetrate the ground and any material on or in the ground such as grass, sod, turf, leaves, thatch and the like. The invention also features devices used to power a shaft on which one or more of the blades are mounted, such as edging or trenching machines.
REFERENCES:
patent: 2312569 (1943-03-01), Maga
patent: 2571455 (1951-10-01), Keiper
patent: 2908337 (1959-10-01), Surprise et al.
patent: 3022621 (1962-02-01), Zavarella
patent: 3162990 (1964-12-01), Cook
patent: 3214896 (1965-11-01), Watkins et al.
patent: 3358431 (1967-12-01), Fitzgerald, Jr.
patent: 3482380 (1969-12-01), Stair
patent: 3538692 (1970-11-01), Cope et al.
patent: 3760884 (1973-09-01), Webster et al.
patent: 3998037 (1976-12-01), Deans et al.
patent: 4072195 (1978-02-01), Carlson
patent: 4269020 (1981-05-01), Wolf
patent: 4297831 (1981-11-01), Pioch
patent: 4421176 (1983-12-01), Tuggle et al.
patent: 4578938 (1986-04-01), Genesco
patent: 4645011 (1987-02-01), Feikema et al.
patent: 4653590 (1987-03-01), Shank
patent: 4881438 (1989-11-01), Pinney
patent: 5056605 (1991-10-01), Bond et al.
patent: 5197268 (1993-03-01), Barrera
patent: 5299647 (1994-04-01), Mudd et al.
patent: 5540286 (1996-07-01), Helmig
patent: 5845405 (1998-12-01), Rosdahl
patent: 5899053 (1999-05-01), Roth
patent: 6062318 (2000-05-01), Andrews
patent: 6289660 (2001-09-01), Martinez
patent: 6293349 (2001-09-01), Marshall et al.
patent: 6367561 (2002-04-01), Firdaus
patent: 6446346 (2002-09-01), Castleman
patent: 6464015 (2002-10-01), Jones
patent: 6487840 (2002-12-01), Turner et al.
patent: 6523618 (2003-02-01), Firdaus
patent: 6640449 (2003-11-01), Hoffmann et al.
patent: 6675569 (2004-01-01), Mannon et al.
patent: 6688095 (2004-02-01), Wadzinski
patent: 6739403 (2004-05-01), Firdaus
patent: 6857481 (2005-02-01), Hayes
patent: 6874581 (2005-04-01), Porter et al.
patent: 6935095 (2005-08-01), Sluder
Plano Power Equipment Online Store—Edger Blades, http://www.planopower.com/store/edger—blades.shtml, printed from website Jan. 16, 2006, 5 pages.
The Re-Edger—Landscaping Bed Split Drive Stick Edger Blade Attachment, http://www.reedger.com/, printed from website Feb. 7, 2006, 1 page.
The Re-Edger—Landscaping Bed Split Drive Stick Edger Blade Attachment—Products, http://www.reedger.com/products.htm, printed from website Feb. 7, 2006, 2 pages.
Mantis Garden Tools, http://www.mantisgardentools.com/accessories.asp, printed from website Jan. 30, 2006, 1 page.
http://www.troybilt.com/webapp/wcs/stores/servlet/pics/TroyBilt/25A-554C766—1j.jpg, printed Jan. 25, 2006, 1 page.
International Search Report and Written Opinion of the International Searching Authority issued in PCT/US2007/64888 dated Nov. 14, 2007.
Fábián-Kovács Arpád
Pearen & Gordon LLP
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