Abstract: A heat dispensing fan includes a hub having a recess defined in a top thereof so as to receive a fan member therein. The recess communicates with a side outlet in the hub and apertures defined through the hub. The fan member has a ring-shaped base plate and a protrusion extends from a center of a top of the base plate. A plurality of first curve blades extends from the protrusion and a plurality of second curve blades are located on the top of the base plate. Each first curve blade is connected to one of the second curve blades. A top cap is connected to the hub and has a hole defined therethrough.

Abstract: A heat dispensing fan includes a hub having a recess defined in a top thereof so as to receive a fan member therein. The recess communicates with a side outlet in the hub and apertures defined through the hub. The fan member has a ring-shaped base plate and a protrusion extends from a center of a top of the base plate. A plurality of first curve blades extends from the protrusion and a plurality of second curve blades are located on the top of the base plate. Each first curve blade is connected to one of the second curve blades. A top cap is connected to the hub and has a hole defined therethrough.

Abstract: An air flow guide device for mounting on a heat dispensing fan includes a U-shaped frame and each of the three sides of the frame has a curve outer surface. A plate is connected between two distal ends of the frame and extends inclinedly from a top edge of the two distal ends of the frame, and a slot is defined between the two distal ends of the frame and the plate. Air flow smoothly flows over the curve smooth surfaces and is sucked by the fan. The plate prevents the exhausted air from being sucked by the fan.

Abstract: A heat dispensing device includes a base board and a plurality of fins extend from a top of the base board and are arranged in a form of radiation. A fan is connected on the fins and has blades which extend inclinedly toward the fins from a shaft of the fan. The air flow generated by the fan blades reaches a central portion of the top of the base board to bring heat at the central portion of the base board.

Abstract: An air flow guide device for mounting on a heat dispensing fan includes a U-shaped frame and each of the three sides of the frame has a curve outer surface. A plate is connected between two distal ends of the frame and extends inclinedly from a top edge of the two distal ends of the frame, and a slot is defined between the two distal ends of the frame and the plate. Air flow smoothly flows over the curve smooth surfaces and is sucked by the fan. The plate prevents the exhausted air from being sucked by the fan.

Abstract: A bubble generating device includes a shaft connected to a float and a plurality of frames connected to the bolt at their first ends. A porous device is connected to the respective mediate portions of the frames. A bolt extends through respective second ends of the frames and a weight is connected to the bolt. A pipe is connected to a fitting extending from the porous device so as to provide air into the porous device to generate bubbles. The bubble generating device can be maintained in water by adjusting the float and the weight.

Abstract: A bubble generating device includes a central tube having a hollow interior and a float is connected to the central tube. The central tube extends through a disk and a porous film is fixedly mounted to a peripheral wall of the disk. A U-shaped tube is connected to the disk and communicates with the hollow interior of the central tube. Two ends of the U-shaped tube respectively communicate with a space between the disk and the porous film. Air enters from the central tube and flow out from two ends of the U-shaped tube to generate bubbles via the porous film.

Abstract: A bubble generating device includes a central tube having a hollow interior and a float is connected to the central tube. The central tube extends through a disk and a porous film is fixedly mounted to a peripheral wall of the disk A U-shaped tube is connected to the disk and communicates with the hollow interior of the central tube. Two ends of the U-shaped tube respectively communicate with a space between the disk and the porous film. Air enters from the central tube and flows out from two ends of the U-shaped tube to generate bubbles via the porous film.

Abstract: A bubble generating device includes a shaft connected to a float and a plurality of frames connected to the bolt at their first ends. A porous device is connected to the respective mediate portions of the frames. A bolt extends through respective second ends of the frames and a weight is connected to the bolt. A pipe is connected to a fitting extending from the porous device so as to provide air into the porous device to generate bubbles. The bubble generating device can be maintained in water by adjusting the float and the weight.