Semi-circular window shade

Details Semi-circular window shade Semi-circular window shade

1996-07-29

1997-09-02

Purol, David M.

Flexible or portable closure, partition, or panel

Pleating type

Fan type

160134, E06B 906

Patent

active

056621531

ABSTRACT:
A frame supports a fan-shaped pleated shade that is rotated from a folded open position to an unfolded closed position so that the shade covers a semi-circular window adjacent to the shade. Two pull-cords are attached to the shade to rotate it between its two extreme positions. The cords are routed over circular surfaces so that they apply a normal force to the shade throughout its movement.

REFERENCES:
patent: 1609877 (1926-12-01), Kendall
patent: 4934434 (1990-06-01), Schnebly
patent: 4934436 (1990-06-01), Schnebly
patent: 5002112 (1991-03-01), Schnebly
patent: 5050661 (1991-09-01), Sikkema
patent: 5139070 (1992-08-01), Kidd
patent: 5159966 (1992-11-01), Fleishman
patent: 5168912 (1992-12-01), Jelic
patent: 5183092 (1993-02-01), Jelic

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