Attachable hand-operated/automatic dual usage venetian blind con

Details Attachable hand-operated/automatic dual usage venetian blind con Attachable hand-operated/automatic dual usage venetian blind con

1989-12-21

1990-09-11

Ro, Bentsu

Electricity: motive power systems

Supplied or controlled by space-transmitted electromagnetic...

318 53, 318434, 318469, 318480, 160331, H04Q 902

Patent

active

049565885

ABSTRACT:
This invention relates to an attachable hand-operated/automatic dual usage venetian blind controller which can be attached to an existing venetian blind to set the blades of such a venetian blind together at any angle or to draw up the blades together to one side of the window by means of infrared remote control so as to regulate the light and air passing through. During power failure, the venetian blind can be controlled through hand operation without removing the controller. The controller of this invention is generally comprised of two DC motor and speed reducing gear set assemblies, two guide wheels, two pressure wheels, a beading cord driving wheel, a pull cord driving wheel, an infrared receiver control circuit, and an infrared transmitter.

REFERENCES:
patent: 3269454 (1966-08-01), Gill et al.
patent: 3403474 (1968-10-01), Spasoff
patent: 3646985 (1972-03-01), Klann
patent: 4618804 (1986-10-01), Iwasaki
patent: 4819708 (1989-04-01), Onosato et al.
patent: 4827199 (1989-05-01), Kaucic et al.

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