Flexible or portable closure – partition – or panel – Plural strip – slat – or panel type – Venetian blind type
Patent
1990-09-17
1991-08-13
Purol, David M.
Flexible or portable closure, partition, or panel
Plural strip, slat, or panel type
Venetian blind type
160175, 1601681, 160900, E06B 930
Patent
active
050388436
ABSTRACT:
A vertical blind of the type having louver carriages mounted for movement along a guide channel with a louver carrier mounted on each carriage for rotation about an upright axis and carriage gear mechanism for rotating the louvers in response to turning of an operating shaft that extends lengthwise of the channel. A wand operated mechanism is provided for rotating the louvers in response to raising and lowering a wand and includes a drive lever mounted for pivotal movement about an axis parallel to the axis of the operating shaft and a crank lever rotatable with the shaft and operated by the drive lever to rotate the shaft. A bidirectional detent mechanism on the housing and crank lever releasably retains the shaft in different angularly adjusted positions. The wand includes a tubular member connected to the drive lever through an L-shaped connector so that tubular member extends downwardly from the underside of the channel in all operating positions fo the drive lever.
REFERENCES:
patent: 2116357 (1938-05-01), Laborda et al.
patent: 3462219 (1969-08-01), Osterholz
patent: 3996938 (1976-12-01), de Wit
patent: 4122884 (1978-10-01), Salzmann
patent: 4261408 (1981-04-01), Debs
patent: 4262728 (1981-04-01), Debs
patent: 4507831 (1985-04-01), McClure
patent: 4936369 (1990-06-01), Darner
Graber Industries, Inc.
Pillote Vernon J.
Purol David M.
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