Patent ID: 6019545
Filing Date: 2000-02-01
Classification: E04F

Abstract:
A surface finishing machine, said machine comprising:downwardly projecting rotor means for finishing said surface, the rotor means comprising means for frictionally contacting said surface;motor means for powering said rotor means;guard means for shrouding said rotor means, said guard means comprising:an outer ring substantially coaxial with said rotor means and disposed vertically adjacent said surface to be finished, the outer ring comprising a diameter sufficient for it to circumscribe the outermost portions of said means for frictionally contacting said surface;an inner ring that is coaxial with and elevated above said outer ring, the inner ring comprising a diameter less than the diameter of said outer ring; and,suspension means spaced apart from said motor means for suspending said guard means for rotation in response to contact with obstacles, wherein said suspension means comprises a plurality of radial arms terminating in rollers.