Abstract: Disclosed are improvements to a high speed power buffer assembly provided with a dust evacuation system. The assembly includes a hood depending from the chassis to encircle the high speed rotating buffer pad, a peripheral skirt depended from the chassis, a dust collection aperture adjacent the buffer penetrating the hood for the outlet of dust to the exterior of the hood, a curved dust collector chute, aligned and in communication with the dust collection aperture, and a dust collection bag, communicated with the dust collector output. The skirt has inclined grooves to co-act with the buffer pad to entrain air from the outside of the skirt to the inside. Given the arrangement of the foregoing features, the dust evacuation system can operate without the use of a vacuum pump.

Abstract: Disclosed are improvements to a high speed power buffer assembly provided with a dust evacuation system. The assembly includes a hood depending from the chassis to encircle the high speed rotating buffer pad, a peripheral skirt depended from the chassis, a dust collection aperture adjacent the buffer penetrating the hood for the outlet of dust to the exterior of the hood, a curved dust collector chute, aligned and in communication with the dust collection aperture, and a dust collection bag, communicated with the dust collector output. The skirt has inclined grooves to co-act with the buffer pad to entrain air from the outside of the skirt to the inside. Given the arrangement of the foregoing features, the dust evacuation system can operate without the use of a vacuum pump.

Abstract: Disclosed are improvements to a high speed power buffer assembly provided with a dust evacuation system. The assembly includes a hood depending from the chassis to encircle the high speed rotating buffer pad, a peripheral skirt depended from the chassis, a dust collection aperture adjacent the buffer penetrating the hood for the outlet of dust to the exterior of the hood, a curved dust collector chute, aligned and in communication with the dust collection aperture, and a dust collection bag, communicated with the dust collector output. The skirt has inclined grooves to co-act with the buffer pad to entrain air from the outside of the skirt to the inside. Given the arrangement of the foregoing features, the dust evacuation system can operate without the use of a vacuum pump.

Abstract: A vacuum sweeper is cantilevered to a hinged bracket mounted to the front of a conventional automatic floor scrubber. The sweeper includes a vacuum head, an overlying debris ramp, and two vertically rotating, conical brushes having their base ends in contact with the floor. The base end of the conical brushes sweep a path at the edge of the vacuum sweeper in excess of the width of the scrubber. The entire vacuum sweeper apparatus is mounted for vertical excursion relative to the cantilevered mount to the hinge bracket to enable up and down excursion of the sweeper and vacuum responsive to either scrubber motion or inevitable floor irregularities encountered during floor scrubbing. Where vacuuming is not required in advance of scrubbing, such as during double scrubbing or floor stripping cycles, provision is made to hinge the vacuum sweeper upwardly away from floor engagement. A ramp is used in conjunction with the vacuum for collecting large debris.

Abstract: A vacuum sweeper is cantilevered to a hinged bracket mounted to the front of a conventional automatic floor scrubber. The sweeper includes a vacuum head, an overlying debris ramp, and two vertically rotating, conical brushes having their base ends in contact with the floor. The base end of the conical brushes sweep a path at the edge of the vacuum sweeper in excess of the width of the scrubber. The entire vacuum sweeper apparatus is mounted for vertical excursion relative to the cantilevered mount to the hinge bracket to enable up and down excursion of the sweeper and vacuum responsive to either scrubber motion or inevitable floor irregularities encountered during floor scrubbing. Where vacuuming is not required in advance of scrubbing, such as during double scrubbing or floor stripping cycles, provision is made to hinge the vacuum sweeper upwardly away from floor engagement. A ramp is used in conjunction with the vacuum for collecting large debris.

Abstract: A high speed propane power buffer is provided with a dust evacuation system. A peripheral skirt is telescopically depended from a hood overlying the high speed rotating buffer pad. This skirt, at the extremity adjacent the surface to be polished, is supplied with angularly inclined grooves sloped away from the radial disposition with respect to the buffer. These angularly inclined grooves slope from the outside of the skirt to the inside of the skirt in the direction of buffer disc rotation at the disc periphery and are maintained by the telescoping skirt immediately adjacent the surface being polished. Entrained air is drawn at the surface being polished in the direction of buffer disc rotation from the outside of the skirt to the inside of the skirt through the slanting louvers establishing a buffer dust confining boundary at the depending peripheral skirt immediately adjacent the floor.