Adjustable viewing screen housing and display device

Details Adjustable viewing screen housing and display device Adjustable viewing screen housing and display device

1991-04-15

1992-08-18

Wintercorn, Richard A.

Optical: systems and elements

Projection screen

Roll up screen

G03B 2156

Patent

active

051404613

ABSTRACT:
Viewing screen and display apparatus including a housing for concealing the viewing screen when not in use, and a lifting assembly having a pair of lifting arms mounted slidably on a pair of tracks inside the housing and being tiltable outwardly. When raising of the viewing screen is desired, the viewing screen casing is tilted outwardly and a cable is pulled to lift the viewing screen casing to a desired height. The cable may be locked in any suitable position to keep the screen casing in a suitable elevation. The viewing screen, which nornally is rolled up within the casing, includes a magnetic strip which can be used to retain the viewing screen in a proper extended position for use.

REFERENCES:
patent: 4556283 (1985-12-01), Numata et al.

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