Rotary current-collecting device and rotating anode X-ray tube

Details Rotary current-collecting device and rotating anode X-ray tube Rotary current-collecting device and rotating anode X-ray tube

2006-02-28

2006-02-28

Lam, Thanh (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S232000, C310S239000, C310S241000, C378S144000

Reexamination Certificate

active

07005774

ABSTRACT:
A rotary current-collecting device includes a rotary slip ring and brushes coming into sliding contact with the outer peripheral surface of the slip ring. The brush-holding ring has an inner surface to which three brush-holding springs are fixed by screws. Each of the brushes is fixed to the tip end of the brush-holding spring and is pushed against the outer surface of the slip ring under the resilient restoration force of the brush-holding spring. When the slip ring revolves, the brushes come into sliding contact with the outer peripheral surface of the slip ring. The brush is made of a metal-graphite compound consisting of 70 weight percent copper and 30 weight percent graphite. The slip ring is entirely made of glassy carbon, so that the brush abrasion can be reduced.

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patent: 1 320 155 (2003-06-01), None
patent: 06-153459 (1994-05-01), None

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