Patent ID: 8555447

Claim:
A rotatable, elongated brush assembly through which a driveshaft extends for being drivingly linked to a rotating drive member, the brush assembly comprising: (a) a first elongated brush having a central tube through which the driveshaft extends, bristles extending radially therefrom and opposing first and second ends; (b) a second elongated brush having a central tube through which the driveshaft extends, bristles extending radially therefrom and opposing first and second ends, the second brush being substantially coaxial to, and aligned in series on the driveshaft with, the first brush; (c) first, second, third and fourth end fittings disposed near the respective ends of the central tubes between the driveshaft and the central tubes; and (d) a spacer mounted between, and seating against, the second and third end fittings and mounted between adjacent ends of the brushes, the spacer having a body with radially outwardly facing shoulders at opposing body ends, a plurality of inwardly facing sidewalls angled relative to one another and joining at intersections to define a central passage through which the driveshaft extends in substantially sealing contact with the inwardly facing sidewalls of the spacer, and a gasket extending radially outwardly from the body a substantial distance to permit the adjacent ends of the brushes to seat against opposing sides of the gasket and against the shoulders to form a sealed juncture.