Screen assembly with pivoting leg members

Details Screen assembly with pivoting leg members Screen assembly with pivoting leg members

1998-06-09

2000-04-18

Blankenship, Howard B.

Optical: systems and elements

Projection screen

Roll up screen

G03B 2156, G03B 2158

Patent

active

060522275

ABSTRACT:
A practically excellent screen assembly in which a screen may be located at a high level position without any discrete assistance, and leg members provided therefor may be well received in a non-use condition. The screen assembly is characterized in that a screen winding receiver for winding and receiving a screen member, having a flexibility, is provided within a case member having a grip portion. A pair of screen support members for supporting the screen member when the screen member is drawn upwardly are pivoted on right and left sides of the case member. On the other hand, leg members extending downwardly are pivoted on the right and left sides of the case member, and the screen support members and the leg members are formed to have a length so as riot to project from the ends of the case member when the screen support members and the leg members are angularly moved to be attached to the case member.

REFERENCES:
patent: 4017152 (1977-04-01), Allen
patent: 4050658 (1977-09-01), Forman et al.
patent: 4110003 (1978-08-01), Zinn
patent: 4169658 (1979-10-01), Brown
patent: 4705355 (1987-11-01), Espo
patent: 5581401 (1996-12-01), Takamoto et al.
patent: 5706130 (1998-01-01), Rosen
patent: 5791624 (1998-08-01), Fedrick
patent: 5798861 (1998-08-01), Doat

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