Patent ID: 8522383

Claim:
A brush for use with a rotating motor device, said brush comprising a collar and a removable brush-head; said collar comprising a first open end and a second securing end, said first open end having a cylindrical cavity defined by a diameter (X) and a depth (A,) and said second securing end having a polygonal opening adapted for securely mating with a corresponding polygonal rotating shaft of a rotating motor device, such that when second end of said collar is secured to said rotating shaft, rotation of said shaft causes corresponding rotation of said collar; and said removable brush-head comprising a plurality of bristles cylindrically bundled, said cylindrical bundle having a first fused end and a second loose end, and said cylindrical bundle defined by a diameter (Y) and perimeter height (B,) wherein the bristles are securely fused to together at said fused end and the bristles are unattached to each other at said loose end; the bristles at said loose end define a generally concave brush face wherein the bristles in the center portion are shorter than the bristles in the perimeter portion; wherein said cavity diameter (X) and said bundle diameter (Y) are nearly identical, with bundle diameter (Y) being slightly shorter than cavity diameter (X,) such that said cylindrical bundle is capable of being removably secured within said cylindrical cavity such that when the device is in use, rotation of the collar causes corresponding rotation of said brush-head, and wherein said cavity depth (A) is shorter than bundle perimeter height (B,) such that when said cylindrical bundle slides snugly within said cylindrical cavity, the loose end of said brush-head extends beyond the open end of said collar.