Robert C Chamberlain

US Patent:

20070096539, May 3, 2007

Filed:

Nov 1, 2005

Appl. No.:

11/263741

Inventors:

Douglas Walker - Mt. Holly NJ, US
Richard Cannon - Spring City PA, US
Robert Chamberlain - Hainesport NJ, US
William Furter - Hainesport NJ, US
Kevin Gray - Westampton NJ, US
Charles Pappas - West Keansburg NJ, US

Assignee:

Atlantic Concrete Cutting Inc. - Mt. Holly NJ

International Classification:

E21C 25/00

US Classification:

299039300

Abstract:

An apparatus for dry cutting asphalt, concrete and other hard construction materials. The apparatus has a forward direction of operation and includes a circular saw, blade guard, and vacuum collection means. The circular saw includes a housing having front and back ends, a rotatable shaft extending from the housing, a blade fixed to the shaft, and means for rotating the shaft and blade in a direction that upcuts the material when the saw is conveyed in the forward direction. The blade guard is mounted to the housing. The blade guard includes a cover surrounding the upper portion of the blade, a shoe surrounding the lower portion of the blade, and an adjustable connection interface between the cover and the shoe. The vacuum collection means is connected to the blade guard.