Flexible or portable closure – partition – or panel – Plural strip – slat – or panel type – Venetian blind type
Reexamination Certificate
2005-10-25
2005-10-25
Purol, David (Department: 3634)
Flexible or portable closure, partition, or panel
Plural strip, slat, or panel type
Venetian blind type
C160S171000, C160SDIG001
Reexamination Certificate
active
06957681
ABSTRACT:
An embedded type motorized blind device. A power supply section has a motor. A power transmitting section has a worm gear coupled to the shaft of the power supply section, a worm wheel positioned on and meshed with the worm gear, a planetary gear formed on a side surface of the worm wheel, and a quadrangular shaft formed integrally with a front end of the worm gear. A control section has an internal sun gear meshed with the planetary gear, a pair of swing arms securely locked to a center shaft fastened to a bottom wall of the internal sun gear, and a pair of limit switches operated by lower ends of the swing arms to control raising and lowering of a blind. An operating section has raising and lowering drums connected one with another, and tilt adjustment parts respectively placed on the raising and lowering drums.
REFERENCES:
patent: 3308873 (1967-03-01), Dotto
patent: 3809143 (1974-05-01), Ipekgil
patent: 4096903 (1978-06-01), Ringle, III
patent: 6253822 (2001-07-01), Wootton
patent: 6659156 (2003-12-01), Wen et al.
patent: 05-065785 (1993-03-01), None
Frommer & Lawrence & Haug LLP
Purol David
Santucci Ronald R.
Winspia Co., Ltd.
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