Clear view screen

Details Clear view screen Clear view screen

1984-02-03

1985-08-20

Punter, William H.

1525022, 52171, G02B 1108, E06B 700

Patent

active

045360642

ABSTRACT:
In a clear viewing screen of the kind comprising a fixed screen element; a disk-like screen element supported for rotation at the outside of the window; a motor for driving the rotatable disk-like screen element supported at the inside of the fixed screen element; the motor to coupled the rotatable disk-like screen element, the motor mounted at the periphery of said rotatable disk-like screen element, and a magnetic coupling having first and second coupling halves is provided, one coupling half coupled to the motor, and the other coupling half coupled to the rotatable disk-like screen element, the coupling members disposed opposite each other on opposite sides of the fixed screen element so that coupling can take place without making a hole in the fixed screen element.

REFERENCES:
patent: 2383750 (1945-08-01), Smith
patent: 2707298 (1955-05-01), Wiest, Jr.
patent: 3103712 (1963-09-01), Allinikov et al.
patent: 3188700 (1965-06-01), Herrmann et al.
patent: 3196302 (1965-07-01), Dechet
patent: 3299819 (1967-01-01), McCoy
patent: 3688081 (1972-08-01), Speich

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