Rotary tubular headrail blind design

Details Rotary tubular headrail blind design Rotary tubular headrail blind design

1992-12-04

1994-02-15

Purol, David M.

Flexible or portable closure, partition, or panel

Plural strip, slat, or panel type

Venetian blind type

1601761, E06B 936

Patent

active

052858383

ABSTRACT:
A rotary tubular headrail blind comprising a tubular headrail with plurality of suspending ladder sets to support a plurality of horizontal slats in parallel, a tubular foot rail, a tilter to rotate the tubular headrail directly, a lifter to raise the tubular foot rail to any desired level, and a holder with two ends to tie each ladder set's inner and outer ladder tapes to maintain the inner and outer ladder tapes close and parallel with each other when the tubular headrail is rotated so that all slats are kept in a same tilting degree.

REFERENCES:
patent: 2544184 (1951-03-01), Rosenbaum
patent: 2555709 (1951-06-01), Sherwood
patent: 2620866 (1952-12-01), Rosenbaum
patent: 3552473 (1971-01-01), Persson
patent: 3605852 (1971-09-01), Vecchiarelli

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