Flexible or portable closure – partition – or panel – Plural strip – slat – or panel type – Venetian blind type
Patent
1988-03-17
1989-07-18
Johnson, Blair M.
Flexible or portable closure, partition, or panel
Plural strip, slat, or panel type
Venetian blind type
160900, 1601781, E06B 930
Patent
active
048484342
ABSTRACT:
A vertical blind of the type having a horizontal carriage guide channel and a blind operating rod extending lengthwise of the channel and slat carriages guidably mounted in a first trackway extending lengthwise of the side walls of the channel. One or more movable auxiliary carriages are provided in the guide channel and have guide shoes extending laterally from opposite ends at locations to guidably support the auxiliary carriages in a second trackway on channel vertically offset from the trackway that supports the slat carriages.
REFERENCES:
patent: 3054446 (1962-09-01), Cayton
patent: 3500896 (1970-03-01), Endou
patent: 4122884 (1978-10-01), Salzmann
patent: 4262728 (1981-04-01), Debs
patent: 4293021 (1981-10-01), Arena
patent: 4332288 (1982-06-01), Frentzel et al.
patent: 4657060 (1987-04-01), Kaucic
Darner Ronald G.
Morris John E.
Graber Industries, Inc.
Johnson Blair M.
Pillote Vernon J.
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