Electrical connectors – Interrelated connectors relatively movable during use – Movement about axis
Patent
1994-07-22
1995-10-03
Paumen, Gary F.
Electrical connectors
Interrelated connectors relatively movable during use
Movement about axis
439 13, 439 39, 439 86, 310 90, H01R 3900
Patent
active
054547245
ABSTRACT:
Method and apparatus for providing a controlled resistance electrical path from one moving element of an electrical device to second or subsequent element. An electrically conductive media is introduced between the rotating and static element of an electrical device. The media, e.g. conductive grease, may be introduced into the bearings of the device. Alternatively, a housing may be disposed upon one of the elements. Into this housing is introduced a quantity of electrically conductive media and a contact element. The contact element is integral with, or is preloaded against, one end of the shaft of the second element, thereby forming an electrical path from the shaft, through the media to the housing and thence to the first element of the device. The contact element may be seen therefore to be floating in contact with the conductive media, thereby forming a controlled-resistance rotary electrical connector. Physical contact between the contact element and the housing may be implemented or not, as the particular application requires. This rotary connection methodology is especially applicable to the controlled grounding of the rotor of a disc drive electric motor with respect to the stator thereof.
REFERENCES:
patent: 1973234 (1934-09-01), Tsavaris
patent: 3691542 (1972-09-01), Gabor
patent: 4151431 (1979-04-01), Johnson
patent: 4211456 (1980-07-01), Sears
patent: 4701653 (1987-10-01), Merkle et al.
patent: 5051853 (1991-09-01), Hosoya
patent: 5142425 (1992-08-01), Gailbreath et al.
patent: 5251081 (1993-10-01), Cossette et al.
Dunfield John C.
Kloeppel Klaus
Pelstring Robert M.
Paumen Gary F.
Seagate Technology Inc.
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