Flexible or portable closure – partition – or panel – Plural strip – slat – or panel type – Venetian blind type
Patent
1991-05-24
1992-02-25
Purol, David M.
Flexible or portable closure, partition, or panel
Plural strip, slat, or panel type
Venetian blind type
1601781, 160900, E06B 926
Patent
active
050904671
ABSTRACT:
The vertical blind track protector of the invention operates to prevent the vanes of the blind from traversing in the closed position. The track protector is inserted on the pinion rod between the end control of the blind and the nearest carrier, and is fabricated with holes on either side to accept the traverse cords. Pulling the control chain to rotate the pinion gear to close the vanes then correspondingly rotates the track protector, twisting the traverse cords. Pulling the operating cord to later traverse the blind actuates the track protector to automatically rotate the pinion rod and the vanes back to an "open" position before the traversing begins.
REFERENCES:
patent: 4122884 (1978-10-01), Salzmann
patent: 4261408 (1981-04-01), Debs
patent: 4262728 (1981-04-01), Debs
patent: 4293021 (1981-10-01), Arena
patent: 4332288 (1982-06-01), Frentzel et al.
patent: 4736784 (1988-04-01), Boloix
patent: 4834163 (1989-05-01), Dickstein
Brodsky Charles I.
Purol David M.
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