发明人：
ERICKSON, JAMES L. | JAVID, SAMAD | ZU, LIJUN
摘要：
A brush assembly comprising a cushion pad and a plurality of brushes secured to the cushion pad. The cushion pad has a 25% compressibility within the range of 6.9 kPa (1psi) to 2413 kPa (350 psi). At least one of the plurality of brushes comprises: a brush base, and bristles, the bristles comprising moldable polymeric material and abrasive particle additives.
权利要求：
The claims defining the invention are as follows:
1, A brush assembly comprising:
a cushion pad having a 25% compressibility within the range of 6.9 kPa (1psi) to 2413 kPa (350 psi);
a plurality of brushes secured to the cushion pad, wherein at least one of the plurality of brushes comprises: a brush base, and bristles, the bristles comprising moldable polymeric material and abrasive particle additives.
2 The brush assembly of claim 1, wherein the cushion pad has a hardness of less than 50 shore A.
3 The brush assembly of claim 1 or 2, wherein the cushion pad comprises at least one of: anon-woven material, a porous material, a fabric material, an inflatable material, and an elastomer,
4. The brush assembly of any one of claims 1 to 3, wherein the at least one of the plurality of brushes is secured to the cushion pad with a detachable attachment mechanism.
5. The brush assembly of any one of claims 1 to 4, wherein plurality of brushes are secured to a first major side of the cushion pad, and wherein the second major side of the cushion pad comprises an attachment mechanism,
6. The brush assembly of any one of claims 1 to 5, wherein the plurality of brushes is in the range of 3 brushes to fifty brushes.
7. The brush assembly of any one of claims 1 to 6, wherein the abrasive particles have a median particle size in the range of 1 microns to 10 microns.
8. A brush assembly comprising:
a cushion pad having a 25% compressibility within the range of 6.9 kPa (1psi) to 2413 kPa (350 psi);
a brush attached to the cushion pad, wherein the brush comprises: a brush base, and bristles, the bristles comprising moldable polymeric material and abrasive particle additives.
9. The brush assembly of claim 8, wherein the cushion pad has a hardness of less than 50 shore A.
10. The brush assembly of claim 8 or 9, wherein the cushion pad has a relaxation modulus less than 25%.
11. The brush assembly of any one of claims 8 to 10, wherein the cushion pad comprises a foam material.
12. The brush assembly of any one of claims 8 to 10, wherein the cushion pad comprises at least one of: a non-woven material, a porous material, a fabric material, an inflatable material, and an elastomer.
13. The brush assembly of any one of claims 8 to 12, further comprising a backing pad, wherein the brush assembly is secured to the backing pad.
14. The brush assembly of claim 13, wherein the brush assembly is secured to the backing pad using a detachable attachment mechanism.
15. The brush assembly of any one of claims 8 to 14, wherein the perimeter of the at least one of the plurality of brushes is circular.
16. The brush assembly of any one of claims 8 to 14, wherein the perimeter of the at least one of the plurality of brushes is wedge-shaped.
17. The brush assembly of any one of claims 8 to 16, wherein the bristles have a conical shape, wherein the circumference of the base of the bristle is larger than the circumference of the tip of the bristle.
18. The brush assembly of any one of claims 8 to 17, wherein the bristle height is in the range of 5 mm to 25 mm.
19. The brush assembly of any one of claims 8 to 18, wherein the brush base is molded such that it is integral with the bristles.
20. The brush assembly of any one of claims 8 to 19, wherein the of the bristles is in the range of about 0.75mm to 3.0 mm,