Actuation unit for venetian blinds or the like

Details Actuation unit for venetian blinds or the like Actuation unit for venetian blinds or the like

1998-02-27

2000-08-01

Purol, David M.

Flexible or portable closure, partition, or panel

Plural and/or with rigid closure

Diverse types

1601681P, 475149, E06B 9264

Patent

active

060952237

ABSTRACT:
An actuation unit for a Venetian blind accommodated in a double-glazing unit or fixed to a window and movable between a fully packed or rolled-up condition and an opened-out condition. The actuation unit includes a magnetic kinematic coupling device which is connected with a device for generating a rotary motion and with kinematic systems for moving the Venetian blind. The magnetic kinematic coupling device has a first permanent cylindrical magnet which is connected so as to rotate with a shaft of the device for generating a rotary motion, and a plurality of second permanent magnets arranged about the first magnet. The second magnets have a polarization extending parallel and similar to that of the first magnet such that the second magnets rotate in relation to the rotation of the first magnet in response to a closure of radial field lines.

REFERENCES:
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patent: 3523204 (1970-08-01), Rand
patent: 3864587 (1975-02-01), Landry
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patent: 4096903 (1978-06-01), Ringle
patent: 4100441 (1978-07-01), Landry
patent: 4417185 (1983-11-01), Bullat
patent: 4979552 (1990-12-01), Zanden
patent: 5013949 (1991-05-01), Mabe
patent: 5078665 (1992-01-01), Castellani
patent: 5447477 (1995-09-01), Bresson et al.

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