Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Szu-Chang Huang0
Date of Patent
June 29, 2021
Patent Application Number
16788112
Date Filed
February 11, 2020
Patent Citations
Patent Citations Received
Patent Primary Examiner
Patent abstract
A cord-resistance adjusting device for a venetian blind includes limiting blocks disposed in a casing unit containing a scroll spring and cord reels. Each of two side casing parts of the casing unit has inner and outer limiting columns mounted thereinside. Each limiting block is movably disposed in the respective side casing part between the inner and outer limiting columns. A lift cord bends around and frictionally contacts the respective limiting block when moving from the inner limiting column to the outer limiting column.
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