Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Reexamination Certificate
2006-09-12
2006-09-12
Lam, Thanh (Department: 2834)
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
C310S238000
Reexamination Certificate
active
07105983
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: 4398113 (1983-08-01), Lewis et al.
Day Michael J.
Lewis Norris E.
Perdue Jerry T.
Vaught Larry D.
Webb Hettie H.
Lam Thanh
Moog Inc.
Phillips Lytle LLP
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