Electrical contact technology and methodology for the...

Details Electrical contact technology and methodology for the... Electrical contact technology and methodology for the...

2008-03-04

2008-03-04

Lam, Thanh (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S238000, C310S247000

Reexamination Certificate

active

11447629

ABSTRACT:
The present invention provides several improvements in a slip ring (36) that is adapted to provide electrical contact between a rotor (42) and stator (40). In one aspect, a brush tube (39) is crimped around the upper marginal end portions of a plurality of individual fibers (38) inserted therein. In another aspect, a collimator tube (41) extends downwardly beyond the end of the brush tube to limit lateral movement of the fibers in the bundle when the rotor rotates. In yet another arrangement, a spring (55, 56) is arranged to bear against a current-carrying conductor to adjustably vary the force by which the lower ends of the fibers are urged to move toward the rotor.

REFERENCES:
patent: 3648088 (1972-03-01), Wilkin et al.
patent: 4267476 (1981-05-01), Lee
patent: 4277708 (1981-07-01), McNab et al.
patent: 4358699 (1982-11-01), Wilsdorf
patent: 4361775 (1982-11-01), Diepers et al.
patent: 6245440 (2001-06-01), Kuhlmann-Wilsdorf et al.

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