Abstract: An unmanned aerial vehicle can be configured to adjust a beam direction, provide path information, act as a base station, act as a cluster head, include an improved directional antenna or array of directional antennas, communicate in a collaboration using belief propagation, receive communications from a serving station aiding in navigation or improved signal performance, or the like.

Abstract: A storage container for canned drinks includes a vessel body having a top opening and multiple bosses formed on an inner periphery of the vessel body; and a clamping mechanism releasably connected to the vessel body and having a collar, a skirt integrally extending outward from a side of the collar to fit into a space inside the vessel body from the top opening, two openings communicating with the top opening and with one another, multiple support bars formed on an inner periphery of the vessel body for clamping a neck of the canned drink and multiple locking bars firmly formed on an outer periphery of the skirt to correspond to and releasably connect to the bosses of the vessel body to secure engagement between the clamping mechanism and the vessel body.

Abstract: A water bottle capable of freely adjusting temperature and a method for vacuumizing a sealed space thereof. The vacuumizing method includes: injecting a low-boiling point liquid into a sealed space between an inner container and an outer shell through a liquid injection hole; after the liquid injection is completed, placing a bottle mouth portion of a water bottle upside down, so that the low-boiling point liquid flows to the bottle mouth portion; heating the water bottle to vaporize the low-boiling point liquid, where since the specific gravity of the gas generated after vaporization is greater than the specific gravity of air, the air in the sealed space is lifted upward and discharged from the sealed space through the liquid injection hole; and after heating for a period of time, closing the liquid injection hole to form a vacuum or semi-vacuum state in the sealed space.

Abstract: A lid module adapted to cover a top opening of a cup body includes a plug device movably and expandably received inside the inner ring to adapt to a cup body so that the lid module has a water tight engagement with the inner periphery of the cup body when the plug device is in an expanded status and the lid module is freely movable relative to the cup body when the plug device is in a contracted status. A lid has an outer ring, an inner ring integrally formed with the outer ring and a hollow central ring integrally formed with the inner ring and having an inner diameter larger than that of an outer diameter of the tube so that the tube is able to extend into the hollow central ring and be securely received therein and a securing mechanism integrally formed with the inner ring.

Abstract: A shower head includes a body provided with a waterway. A first switch is movably mounted on the body to be responsible for selectively opening and closing the waterway and a second switch movably mounted on the body to be responsible for selectively changing water output patterns. The first switch has a rear pushbutton, a driving rod movably connected to the rear pushbutton and a diverting element movable relative to the body to be responsible for closing or opening the waterway. The second switch has a front pushbutton, a sliding element having a rack formed on a face thereof, a diverter rotatably received inside the body, a gear rotatably received inside the body and having first ratchet teeth and a rotor having second ratchet teeth selectively engaged with the first ratchet teeth to allow the rotation of the gear to drive the second ratchet teeth of the rotor to disengage with the first ratchet teeth of the gear as well as the rotor and the diverter to rotate accordingly.