Dual fluted shade

Details Dual fluted shade Dual fluted shade

1988-01-19

1989-10-03

Ball, Michael W.

Flexible or portable closure, partition, or panel

Pleating type

Lazy-tong links pivot about axes parallel to panel

156205, 428 12, 428116, 428181, 428188, A47H 500, B32B 312

Patent

active

048710067

ABSTRACT:
A dual fluted shade consisting of two parallel one-piece webs of material with deep adjacent arcuate flutes directly connected with parallel connecting strips.

REFERENCES:
patent: 1284771 (1918-11-01), Quinn
patent: 1603465 (1926-10-01), Hopkinson
patent: 2874612 (1959-02-01), Luboshez
patent: 3157551 (1964-11-01), Granozio
patent: 3294605 (1966-12-01), Fischer
patent: 3547751 (1970-12-01), Morgan
patent: 3963549 (1976-06-01), Rasmussen
patent: 4132577 (1979-01-01), Wintermantel
patent: 4673600 (1987-06-01), Anderson
patent: 4677013 (1987-06-01), Anderson
patent: 4685986 (1987-08-01), Anderson

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