Castex Incorporated

Steve Waldhauser

Richard F Wulff

A floor burnisher having a frame, a peripheral housing, rear wheels and a front caster, the housing having an internal cylindrical wall defining a vertical chamber having an open bottom; a floating rotational drive motor in the chamber, and a rotational pad-driver underlying and connected to the motor to be rotationally driven thereby for mounting a flexible burnishing pad; suspension links and springs between the frame and drive motor suspending the drive motor, pad-driver and pad thereon in a floating fashion relative to the frame and housing, allowing limited vertical movement relative to the cylindrical wall; a flexible, peripheral, floor-engagement skin suspended from the peripheral housing shroud, and an air flow control sealing member between the motor and annular wall for preventing excessive air flow between the floating motor and wall into the burnisher wall chamber. In one embodiment, the air flow control member is a wiper mounted on the motor and slidably engaging the wall to slide up and down the wall. In a second embodiment, the air flow control member is a diaphragm between the motor and housing. In a third embodiment, the air flow control member is a bellows between the motor and housing.

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Niagara Falls, NY, United States of America

Steve Waldhauser