Double layer shade

Details Double layer shade Double layer shade

1991-10-03

1993-04-27

Purol, David M.

Flexible or portable closure, partition, or panel

Plural and/or with rigid closure

Diverse types

160 841, 160108, E06B 940

Patent

active

052053342

ABSTRACT:
A roller shade is mounted within a headrail and a pleated shade is attached to the bottom of the headrail to form a double layer shade. The two shades are independently operable. When both shades are extended the double layer shade provides a thermally efficient window covering.

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patent: 4953610 (1990-09-01), Phillips et al.
patent: 4974656 (1990-12-01), Judkins

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