Integrated brush-holder retention system

Details Integrated brush-holder retention system Integrated brush-holder retention system

2006-05-23

2006-05-23

Lam, Thanh (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

Reexamination Certificate

active

07049727

ABSTRACT:
A brush-holder system for an electric motor which is the type which has a rotating commutator that is journaled in a first motor housing portion, the assembly includes a second motor housing portion configured to be matingly connected to the first motor housing portion and having at least one brush holding pocket therein. The pocket is formed by a structure of the second motor housing portion which defines a support surface on one side thereof and a bridge portion on an opposite side thereof. The system further includes an elongated brush having first and second ends, wherein the first end is configured to be coupled to a biasing member and the second end is configured to contact the motor commutator, and at least one removable brush-holder having a first open end configured to receive the brush therein and to fit in the pocket, and a second open end enabling the brush to extend outwardly therefrom to contact the motor commutator. The system also includes a biasing member coupled to the brush, and an end cap coupled to the first open end and configured to be in abutment with the biasing member to bias the brush toward the motor commutator.

REFERENCES:
patent: 3784856 (1974-01-01), Preston
patent: 5793141 (1998-08-01), Simonsen et al.
patent: 6294857 (2001-09-01), Nakane
patent: 6394191 (2002-05-01), Nakane
patent: 6608423 (2003-08-01), Tam
patent: 2178248 (1987-02-01), None
patent: WO 03/107517 (2003-12-01), None

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