Vertical blind apparatus

Details Vertical blind apparatus Vertical blind apparatus

1991-07-22

1992-02-18

Purol, David M.

Flexible or portable closure, partition, or panel

Plural strip, slat, or panel type

Venetian blind type

160901, E06B 930

Patent

active

050885421

ABSTRACT:
A vertical blind apparatus of the type having a plurality of panel support carriages mounted for movement along a track and a lazy-tong linkage extending lengthwise of the track and connected to the carriages to control spacing between adjacent carriages when the blind is extended along the track to a closed position. The maximum spacing between adjacent carriages is further controlled by rail engaging fingers on the outer pivots of the lazy-tong linkage, and a rail having lateral guide faces arranged to engage the fingers to limit movement of the outer pivots to a preselected minimum distance.

REFERENCES:
patent: 2759534 (1956-08-01), Harju
patent: 2822043 (1958-02-01), Horak
patent: 3280891 (1964-03-01), Eldredge, Jr. et al.
patent: 3534801 (1970-10-01), Bolden
patent: 4122884 (1978-10-01), Salzmann
patent: 4628981 (1986-12-01), Ciriaci et al.
patent: 4657060 (1987-04-01), Kaucic
patent: 4799527 (1989-01-01), Villoch et al.
patent: 4834163 (1989-05-01), Dickstein
patent: 4848435 (1989-07-01), Helver

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