Patent ID: 9027542
Filing Date: 2015-05-12
Classification: B28D,Y10T

Abstract:
1. A concrete saw comprising: a chassis, said chassis having a chassis upper surface and a chassis lower surface, said chassis lower surface being disposed in generally parallel spaced relation to said chassis upper surface, said chassis upper surface including an aperture edge, said aperture edge defining an aperture through said chassis between said upper and lower surfaces, said chassis upper surface including an external peripheral edge, said external peripheral edge defining a front end of said chassis and a rear end of said chassis; a motor portion, said motor portion being coupled to, and supported by, said chassis upper surface, said motor portion including an arbor, said arbor being disposed in spaced relation to said aperture edge, said arbor being adapted to support a circular saw blade such that a portion of said circular saw blade is instantaneously disposed through said aperture during operation of said concrete saw, said motor portion including a blade guard, said blade guard being adapted to effectively guard a peripheral edge of said circular saw blade above said aperture; first and second front wheels, said first and second front wheels being rotatably coupled to said chassis and disposed in relative proximity to said front end of said chassis and forwardly of said aperture; first and second rear wheels, said first and second rear wheels being rotatably coupled to said chassis and disposed in relative proximity to said rear end of said chassis and rearwardly of said aperture; a removable counterweight, said counterweight being supported by said upper chassis surface, a portion of said counterweight being disposed in relative proximity to said front end of said chassis and between said first and second front wheels; and a vacuum manifold, said vacuum manifold being coupled to and supported by said chassis independently of said blade guard, a portion of said vacuum manifold being disposed across a longitudinal axis of said aperture such that, during operation of said concrete saw, a peripheral edge portion of said circular saw blade is arranged to rotate through said vacuum manifold before entering said blade guard.