Method for removing trip hazards in concrete sidewalks

Details Method for removing trip hazards in concrete sidewalks Method for removing trip hazards in concrete sidewalks

2006-12-20

2008-07-22

Wilson, Lee D (Department: 3723)

Abrading

Abrading process

Glass or stone abrading

C451S028000, C451S359000, C451S450000, C125S013010, C125S025000

Reexamination Certificate

active

07402095

ABSTRACT:
A method for cutting a chamfer on an edge of a concrete slab, the method comprising the steps of: making a generally planar cut, beginning a distance from the edge, with a generally circular, generally laminar concrete saw blade rotatably powered by a right-angle grinder motor, the generally planar cut being made at a desired angle and creating a cantilevered ledge above the generally planar cut; fracturing and removing at least a portion of the cantilevered ledge from the slab whenever an edge of the cantilevered ledge is proximate the hub; and continuing the generally planar cut until the cantilevered ledge is severed from the slab.

REFERENCES:
patent: 4870946 (1989-10-01), Long et al.
patent: 5115796 (1992-05-01), Schweickhardt
patent: 6595196 (2003-07-01), Bath
patent: 6638153 (2003-10-01), Lee et al.
patent: 6827074 (2004-12-01), Gardner
patent: 7000606 (2006-02-01), Gardner
patent: 7201644 (2007-04-01), Gardner
patent: 2003/0217743 (2003-11-01), Gardner
patent: 2005/0059327 (2005-03-01), Gardner
patent: 2006/0246827 (2006-11-01), Gardner

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