Abstract: A wheel assembly for a floor treatment machine is provided that aids the operator in maintaining positive control of the machine. The wheel assembly includes a body that can be removably attached to the floor treatment machine, and wheels that are configured to contact the floor, while the floor treatment machine is in use. The body of the wheel assembly can include a first end disposed below the base of the floor treatment machine, an intermediate region, and a second end extending beyond the base.

Abstract: A wheel assembly for a floor treatment machine is provided that aids the operator in maintaining positive control of the machine. The wheel assembly includes a body that can be removably attached to the floor treatment machine and wheels that are configured to contact the floor, while the floor treatment machine is in use. The body of the wheel assembly can include a first end disposed below the base of the floor treatment machine, an intermediate region, and a second end extending beyond the base.

Abstract: An accessory for a power hand tool including a rolling support structure for supporting and carrying the hand tool over a substrate at a user-selected or preselected working depth or height of the disc grinder or sander or similar material processor is disclosed. The accessory includes a support bracket having a longitudinal axis for attachment to a portion of the housing at an intermediate position of the support bracket, together with a pair of substrate-surface engaging rollers adjustably secured to the support bracket at mounting locations longitudinally separated from the intermediate attachment position. For a power hand tool having a housing including a cylindrical outer surface portion coaxially aligned with the drive shaft of the power tool, the attachment portion of the accessory includes a corresponding concavity for being installed about the cylindrical portion of the housing in nesting relationship with a clearance fit therebetween to allow for angular adjustment therebetween.

Abstract: A floor treatment machine with a torque limiter assembly between a rotating drive linkage and a rotating head for treating a floor surface. The torque limiter assembly includes engaged plates that disengage upon the application of a predetermined torque created when the head slows or stops rotating because of a floor obstruction. Upon the disengagement of the plates, the drive linkage continues to rotate and is less likely to sustain damage from the effect of the floor obstruction on the rotation of the head. The plates may engage each other through a configuration of cooperating teeth and notches. Alternatively, a rotating head can be provided with a built-in torque limiter assembly. This head can be attached to various floor treatment machines. The amount of predetermined torque that causes the plates to disengage may be adjusted as needed for varied floor conditions.

Abstract: An improved abrasive floor treatment apparatus that can be used to effectively treat a variety of floor surfaces, including floor surfaces that are uneven. The apparatus includes a plurality of special abrasive block assemblies that are mounted on the underside of one or more rotatable disks, with each such assembly including a mounting block that releasably retains a plurality of spring-biased abrader assemblies. Multiple configurations for these abrader assemblies are provided, each adapted for use in providing a different kind of surface treatment, and these abrader assemblies are easily and conveniently installed in the mounting block.