Abstract: A micro pump device with liquid tank comprises a liquid tank being made of transparent material; and a micro pump having an inlet positioned in center of the liquid tank and the micro pump locating the side of said liquid tank. And, the liquid tank further includes a first inlet, a second inlet and a vent hole. The pump device provides a cooling system for micro electric device and a liquid tank could provide a closed tank of cooling system.

Abstract: This invention—iBOX, an intelligent multifunction mailbox, combines several technologies, such as video camera, remote programmable keypad, PN junction thermoelectric unit, powerline communication, wire or wireless communication and Internet together to provide a more secure, multi functional mailbox. It resolves several short comes of the traditional signature-required delivery operations.

Abstract: A connecting structure that gathers the ends of a plurality of chains or strands made of pearls or other ornamental beads to form a jewelry necklace. The connecting structure positions and retains the strands in a stacked arrangement when the necklace is donned on the neck of a person. The connecting structure has two sets to form a pair. Each set comprises a front side and a rear side. The front side includes at least two outlets evenly spaced apart longitudinally along the front side to provide connection to the ornamental strands, and the rear side has a rearward-extending terminal located below the longitudinal median of the connector. The terminals of the two sets are pivotally engaged with each other.