Patent ID: 6390086
Filing Date: 2002-05-21
Classification: B23D,B28D,E01C

Abstract:
A mobile saw for simultaneously cutting a plurality of substantially parallel kerfs in a concrete slab having a top surface, comprisinga housing having first and second side portions, aft and forward ends, and a bottom portion, a motor supported by said housing, means for supporting said housing for transport over the top surface of a concrete slab, said means including a first support assembly disposed adjacent said aft end of the housing and a second support assembly disposed forward of said first support assembly and whose spatial relationship to said housing is adjustable, at least one shaft having first and second opposite ends and a longitudinal rotational axis, said shaft being secured to said bottom portion of said housing, extending transversely of said housing between the opposite sides thereof, and with at least one of its ends projecting outwardly in cantilevered fashion from at least one of said first and second side portions of said housing, said shaft being disposed substantially parallel with the top surface of the concrete slab, means connecting said motor in driving relationship to said at least one shaft for rotation of said at least one shaft about its longitudinal axis, a plurality of circular concrete-cutting blades secured to that end of said shaft which projects outwardly from said at least one side of said housing and rotatable with said at least one shaft, said blades being disposed in spaced apart side-by-side relationship to, and substantially parallel to one another in respective planes which are substantially normal to said longitudinal rotational axis of said shaft, means for selectively adjusting the spatial relationship of said at least one support member relative to said housing and thereby selectively adjusting the spatial relationship of said at least one shaft and said plurality of blades relative to the top surface of the concrete slab.