| abstract |
Embodiments of the invention provide a brush ring assembly including a brush ring, at least one brush, a brush holder, and at least one torsion spring. The brush holder is coupled to the brush ring and secures the at least one brush within a brush opening. The at least one torsion spring is secured by the brush holder and includes a bent portion at a first end, an entire length of the bent portion contacting the at least one brush to urge the at least one brush through the brush opening. |