Helicopter electric connecting unit, and helicopter equipped...

Aeronautics and astronautics – Aircraft – heavier-than-air – Helicopter or auto-rotating wing sustained – i.e. – gyroplanes

Reexamination Certificate

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Details

C439S020000, C403S371000

Reexamination Certificate

active

06880781

ABSTRACT:
There is described an electric connecting unit for a helicopter, having a stator connected rigidly to a fixed part of the helicopter and fitted with first electric contact means; and a movable member rotated about a respective axis by a rotary member of the helicopter, and fitted with second electric contact means cooperating in sliding manner with the first electric contact means; the movable member having rigid fastening means for connection to the rotary member of the helicopter, so that no bearings are required between the stator and the movable member.

REFERENCES:
patent: 503033 (1893-08-01), Boorman
patent: 1431295 (1922-10-01), Evans
patent: 1784528 (1930-12-01), Lidke et al.
patent: 2480222 (1949-08-01), Carlson
patent: 2638295 (1953-05-01), Sheets
patent: 2718604 (1955-09-01), Herrick
patent: 3957381 (1976-05-01), Schafer
patent: 4348132 (1982-09-01), Mullenberg
patent: 4702437 (1987-10-01), Stearns, Jr.
patent: 6322324 (2001-11-01), Kennedy et al.
patent: 200 830 (1908-07-01), None
patent: 683 979 (1952-12-01), None

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