Excavating – Snow or ice removing or grooming by portable device – Vehicle mount with obstacle responsive trip – or yieldable tool
Reexamination Certificate
2006-12-05
2006-12-05
Batson, Victor (Department: 3671)
Excavating
Snow or ice removing or grooming by portable device
Vehicle mount with obstacle responsive trip, or yieldable tool
Reexamination Certificate
active
07143531
ABSTRACT:
In one aspect of the present invention, a plow protection device is disclosed. Such a device may, for example, protect a plow against substantial damage from impact with an obstruction such as a utility cover. In various embodiments of the present invention, the plow protection device multiplies velocity, distance, and kinetic energy at the point of impact between the plow and the obstruction to lift the plow's cutting edge up and away from the obstruction and the road or other plowing surface. By actively lifting the cutting edge over the impacted obstruction, embodiments of the present invention thereby limit the duration and severity of impact and minimize the resulting stresses. In another aspect of the present invention, a wear protector is provided to protect one or more components of the present invention and/or plow from wear due to friction with the plowing surface.
REFERENCES:
patent: 3456369 (1969-07-01), Leposky
patent: 3587182 (1971-06-01), Hirt
patent: 3587751 (1971-06-01), Schmidt
patent: 3775877 (1973-12-01), Gove, Sr.
patent: 3831689 (1974-08-01), Smith
patent: 3995698 (1976-12-01), Nelson et al.
patent: 4259794 (1981-04-01), Rath
patent: 4307523 (1981-12-01), Reissinger et al.
patent: 4346528 (1982-08-01), Shwayder
patent: 4794710 (1989-01-01), Haring
patent: 4799823 (1989-01-01), Williams
patent: 4833801 (1989-05-01), Winter
patent: 5109618 (1992-05-01), Grubler et al.
patent: 5323862 (1994-06-01), Furlough
patent: 5437113 (1995-08-01), Jones
patent: 5697172 (1997-12-01), Verseef
patent: 5829174 (1998-11-01), Hadler et al.
patent: 5921010 (1999-07-01), Schulte et al.
patent: 5987785 (1999-11-01), Aguado et al.
patent: 6125559 (2000-10-01), Mullenhour
patent: 6219943 (2001-04-01), Kitchell
patent: 6408548 (2002-06-01), Altheide
patent: 6618965 (2003-09-01), Schultz et al.
patent: 6701646 (2004-03-01), Schultz et al.
patent: 2004/0006895 (2004-01-01), Schultz et al.
patent: 2001103801 (2001-04-01), None
patent: 2002322626 (2002-11-01), None
patent: 2003278118 (2003-10-01), None
S-Cam Brake Adjustment and Fuel Economy?, http://www.leeric.lsu.edu/bgbb/7/ecep/diesel/d/d.htm.
Batson Victor
Plotkin, P.C. Robert
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