Device for controlling the operation of a roll-up cloth curtain
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 3, 1992
Grant Date -
N/A
app pub date -
Jan 22, 1991
filing date -
Jan 26, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a device for controlling a roll-up curtain roller for a curtain to be placed in an opening, a pulley is linked to the curtain roller and has a race forming a lock slot for a driving rope, and a plate supports the pulley and is available for fastening the device to an end of a box in which the roller with the curtain thereon is housed. A guide has a center hole through which passes a grooved cylinder of the pulley, and is mounted on the pulley along the race in an intermediate position between the plate and the box. The guide is provided, on opposite sides, with a first and a second pair of slits through the rope can come out of either one or both of the pair of slits so that the device can be operated from either one or both sides of the opening in which the curtain is placed.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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