Flexible or portable closure – partition – or panel – Plural strip – slat – or panel type – Venetian blind type
Patent
1997-11-18
1999-05-25
Purol, David M.
Flexible or portable closure, partition, or panel
Plural strip, slat, or panel type
Venetian blind type
24115F, E06B 938
Patent
active
059062339
ABSTRACT:
Disclosed are improved horizontal venetian blind safety pull cord rigging systems and several embodiments of improved break-open safety pull cord tassels for detachably intercoupling two or more manipulating runs of Venetian blind hoisting halyards. A safe single pull cord is suspended in an improved manner from the lowest tassel used in the rigging array. Either the tassel(s) or a slack preventer on each halyard run engages the frame rail, or halyard lock mechanism therein, when the blind is lowered the desired maximum amount so that insufficient slack then remains in the blind-slat-entrained halyard runs to form a strangulation loop by slack pull-out. Two or three break-open safety tassels are arrayed and rigged to handle three and four halyard cord blinds. The "high level" safety tassel can thus also serve as a safe equalizer as well as insuring level blind operation.
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Advertisement of Break-Thru Corp., a subsidiary of Hunter-Douglas Trademark "Break-Thru".
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