A system for automatic operation of venetian blinds and similar window coverings. A preferred embodiment, system 30, can be retrofitted to any conventional venetian blind without tools, removal of the blind, or installation of wiring (FIG. 10A). System 30 is attached to a blind 15 by a bracket 80, which engages a headrail 16 of blind 15, and is secured by a thumbscrew 84 (FIG. 4C). System 30 includes a gearmotor 85 which drives a coupling tube 91; coupling tube 91 is attached to a tilt-adjustment shaft 18 of blind 15 (FIG. 3A). The mechanical coupling between gearmotor 85 and coupling tube 91 includes a flexible coupling and an extensible coupling, which enable gearmotor 85 to rotate shaft 18 over a wide range of sizes and configurations of blind 15 (FIGS. 5A and 5B). System 30 also includes a photovoltaic source 31 mounted on a flexible member 99. Member 99 provides electrical connections to source 31, and supports it in an advantageous position to receive solar radiation (FIGS. 8B and 8C), regardless of the size and mounting arrangement of blind 15. System 30 also includes four momentary-contact electrical switches 38 to 41 and an actuating body 94, to which a tilt-control wand 19 of blind 15 can be attached. Together, actuating body 94 and switches 38 to 41 enable system 30 to be conveniently controlled by rotary and axial movements of wand 19 (FIG. 10A).

Solar-powered, wireless, retrofittable, automatic controller for venetian blinds and similar window converings

A mini-blind actuator has a motor and a housing that holds the motor and a dc battery. The rotor of the motor is coupled to the baton of the mini-blind for rotating the baton and thereby opening or closing the slats of the mini-blind. Alternatively, the rotor is coupled to the tilt rod of the blind to rotate the tilt rod and thereby open or close the slats of the mini-blind. A control signal generator generates a control signal for completing the electrical circuit between the battery and the motor. The control signal can be generated in response to a predetermined amount of daylight or in response to a user-generated remote command signal. The actuator can be used to rotate the slats of horizontal or vertical blinds, or the sections of a pleated shade. Or, the actuator can be used to rotate the hollow rotatable tube of a roll-up shade.

Head rail-mounted actuator for window coverings

A wireless battery-operated window covering assembly is disclosed. The window covering has a head rail in which all the components are housed. These include a battery pack, an interface module including an IR receiver and a manual switch, a processor board including control circuitry, motor, drive gear, and a rotatably mounted reel on which lift cords wind and unwind a collapsible shade. The circuitry allows for dual-mode IR receiver operation and a multi-sensor polling scheme, both of which are configured to prolong battery life. Included among these sensors is a lift cord detector which gauges shade status to control the raising and lowering of the shade, and a rotation sensor which, in conjunction with internal registers and counters keeps track of travel limits and shade position.

Electrically powered window covering assembly

A mini blind actuator has a motor and a housing (30) that holds the motor (60) and a dc battery (40). The rotor of the motor is coupled to the baton (22) of the mini-blind for rotating the baton and thereby opening or closing the slats of the mini-blind. Alternatively, the rotor is coupled to the tilt rod of the blind to rotate the tilt rod and thereby open or close the slats of the mini-blind. A control signal generator (52) generates a control signal for completing the electrical circuit between the battery and the motor. The control signal can be generated in response to a predetermined amount of daylight or in response to a user generated remote command signal.

Head rail-mounted mini-blind actuator

A remote control system for window blinds including a control unit provided for each of a plurality of blinds which are opened and closed freely, each blind further including rotatable slats. The control unit is provided with a signal receiver, and through the use of a transmitter, which is provided separately, the control unit controls the individual blind as well as slats thereof, and a plurality of control units can be successively actuated so that two or more blinds and the slats thereof can be controlled at the same time from a distance. By means of this remote control system, a centralized control of the blinds can be performed without requiring a special control board, and erroneous operation can be avoided as blind operation is done after the blind number is designated. When the blind operation is completed, the system is automatically reset for the next operation command.

Remote control blind system

This invention relates to a circuit arrangement and the associated mechanism for slaving the angles of rotation of the slats of a plurality of centrally controlled sun or window blinds. The driving motor of each blind is provided with current via a corresponding operational amplifier and related circuit. The motor operates the slats to achieve balance between an input control voltage and a voltage depending on the angular position of the slats. An automatic version in which the control voltage is generated by a photoelectric sensor and several circuit variations are shown.

Apparatus for synchronizing the slats of motor driven window blinds

Agencement pour synchroniser l'angle de rotation des lattes d'une pluralite de stores

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Apparatus for synchronizing the slats of motor driven window blinds

Agencement pour synchroniser l'angle de rotation des lattes d'une pluralite de stores