Geometrical instruments
Patent
1975-12-16
1976-12-14
Lake, Roy
Geometrical instruments
339 3S, 339 10, H01R 3900
Patent
active
039972240
ABSTRACT:
A stationary outer annular holder is concentrically positioned around and radially spaced apart from a rotatable annular conductive plate member. Curved conductive spring bands are supported on the holder so as to be urged into sliding contact with the annular conductive plate member. Electrical contact and smooth rotation between the holder and the annular conductive plate member are thus ensured even during severe vibration.
REFERENCES:
patent: 2877435 (1959-03-01), Alvine, Jr.
patent: 3614726 (1971-10-01), Richter et al.
Ikawa Kazuo
Ogawa Naoki
Adams Bruce L.
Burns Robert E.
Jones DeWalden W.
Lake Roy
Lobato Emmanuel J.
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