Flexible or portable closure – partition – or panel – Plural strip – slat – or panel type – Venetian blind type
Patent
1977-11-07
1978-10-31
Caun, Peter M.
Flexible or portable closure, partition, or panel
Plural strip, slat, or panel type
Venetian blind type
64 30R, E06B 926
Patent
active
041228855
ABSTRACT:
A venetian blind including a rotary tilt rod and tilt rod operator, wherein a yieldable or slip coupling is interposed in motion transmitting relation between the operator and tilt rod to disengage the same upon excessive torque, the coupling including driving and driven elements respectively connected to the operator and tilt rod and having separable interfitting formations configured to effect driving engagement and urge the elements and formations apart, and a resilient device yieldably urging the elements and formations toward each other.
REFERENCES:
patent: 1516152 (1924-11-01), Dumont
patent: 2137444 (1938-11-01), Clancy
patent: 2176259 (1939-10-01), Guy
patent: 3192740 (1965-07-01), Stamates
patent: 3789905 (1974-02-01), Saito
Caun Peter M.
Marathon Manufacturing Company
Youtie Robert K.
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