Abstract: A tilting device is installed in a headrail of a window blind to tilt slats. The headrail includes a plurality of ladder drums and a transmission shaft. Each ladder drum is fastened with a ladder. The ladder drums are connected to the transmission shaft in series and the transmission shaft makes the ladder drums rotate. The device includes a transmission member, having a worm and a worm gear, received in the headrail and having an input shaft to engage a driven portion of the transmission shaft, and a motorizing member includes a shaft and a power source, wherein the power source powers the shaft to turn; the shaft engages the input shaft to drive the transmission shaft to turn; therefore, the window blind can be tilted by motor power or manual manipulation.

Abstract: A louver blade positioning device of a motorized shutter assembly includes an indented positioning portion or a protruded portion formed upon a driving shaft and a resilient member coming into contact with the driving shaft and the indented positioning portion or the protruded portion in a radically movable manner at a fixed angle. When the louver blades are rotated to approach a specific angle, the resilient member moves into the indented positioning portion or the protruded portion. Through the resilient force exerted by the resilient member on the indented positioning portion or the protruded portion, the driving shaft rotates to approach the specific angle, such that the louver blades become positioned at the specific angle when being rotated to approach the specific angle, thereby becoming free from the angular clearance inherent among transmission components of the motorized shutter assembly.

Abstract: A photovoltaic charged driving device applicable to a shutter includes a driving module and a photovoltaic module. The driving module comprises a rechargeable power unit, a controller, a motor and a power input terminal, used to drive slats to change their angle. The photovoltaic module includes a power output terminal having a compatible connector with the power input terminal, and a solar panel used to receive sunlight to charge the rechargeable power unit so as to enable the driving module to chronically operate without changing a battery. The photovoltaic module can be conveniently connected to or removed from the driving module for receiving sunlight effectively.

Abstract: A louver blade positioning device of a motorized shutter assembly includes an indented positioning portion or a protruded portion formed upon a driving shaft and a resilient member coming into contact with the driving shaft and the indented positioning portion or the protruded portion in a radically movable manner at a fixed angle. When the louver blades are rotated to approach a specific angle, the resilient member moves into the indented positioning portion or the protruded portion. Through the resilient force exerted by the resilient member on the indented positioning portion or the protruded portion, the driving shaft rotates to approach the specific angle, such that the louver blades become positioned at the specific angle when being rotated to approach the specific angle, thereby becoming free from the angular clearance inherent among transmission components of the motorized shutter assembly.

Abstract: An optical signal remote controller with narrowed acting angle having an optical signal emitter and a light guiding element used to narrow the acting angle of the optical signal emitted by the optical signal emitter is provided. The remote controller further includes a modulating apparatus, which move the light guiding element between a wide angle position and a narrow angle position to selectively narrow the acting angle. In the embodiments, a laser position indicator is also provided to indicate the targeting direction of acting angle.

Abstract: A heater device applied in a desiccant rotor dehumidifier for supplying regeneration hot air to the desiccant rotor comprises a metal case having an air inlet and an air outlet; heating elements supported by insulative material and mounted adjacent to the desiccant rotor; and an insulative plate installed in parallel to the heating elements and parting the heating elements with the air inlet. The insulative plate is formed with a plurality of via holes suitably distributed for the intake air coming from the air inlet passing through, being heated by the heating elements and evenly passing the desiccant rotor through the air outlet. The insulative plate also splits and bypasses a part of the intake air to cool down the desiccant rotor that has been heated and regenerated.

Abstract: A foldable container, of which each of the two side walls has two sections to be foldable inwards so as to have the side walls folded on the floor of the container; the roof of the container is then fallen upon the side walls. Between the roof and the folded side walls, there is a space to accommodate the two end walls; consequently, the container can closely be folded up to facilitate an empty container to be handled in freight. The present invention discloses the fastenable hinges of the side walls and the connecting device of the end walls.