Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1995-05-24
1997-04-22
Stephan, Steven L.
Electrical generator or motor structure
Dynamoelectric
Rotary
310245, 310229, H02K 1300, H01R 3938
Patent
active
056231776
ABSTRACT:
An electric motor comprising a rotatably mounted rotor, a commutator brush retainer mounted fixedly with respect to the rotor, wherein the commutator brush retainer rotates with the rotor, at least one brush slidably mounted to the commutator brush retainer, wherein the brush is slidable in a radial direction between a radially retracted position and a radially extended position, and a spring connected to the commutator brush retainer and to said one brush, wherein the spring biases the one brush to the radially retracted position and, wherein, during rotational movement of the motor, centrifugal force moves the one brush toward the radially extended position, wherein, as a rotational velocity of the rotor increases, the one brush moves closer to the radially extended position.
REFERENCES:
patent: 1655286 (1928-01-01), Nietsche
patent: 3383535 (1968-05-01), Lohr
patent: 5049772 (1991-09-01), Mottier et al.
patent: 5059846 (1991-10-01), Concannon
patent: 5214335 (1993-05-01), Phillips et al.
patent: 5485048 (1996-01-01), Kuragaki et al.
patent: 5522653 (1996-06-01), Fulks et al.
Dimatteo Michael A.
Fulks Gary C.
General Motors Corporation
Link Jonathan
Simon Anthony Luke
Stephan Steven L.
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