Abstract: An apparatus for aligning microelements on a substrate and a method for the same are provided. The steps of the method include providing a substrate, forming a protruding structure on the substrate, providing a microelement, forming a microdroplet on the protruding structure, and forcing the microelement to contact the microdroplet. The surface tension of the microdroplet is used to move the microdroplet to a surface of the protruding structure.

Abstract: A spray assembly for use in a kitchen includes a body with a first section and a second section extending from the first section. The body includes an inlet defined in a first end of the body and connected to a water source. A first chamber is defined in the first section and communicates with the inlet. A second chamber is defined in the second section and extends to a second end of the body. A path is defined in the body and communicates with the first chamber and the second chamber. A piston is reciprocally received in the body to close the path. A trigger is pivotally on the body to downward drive the piston to open the path. A sprinkling device is mounted to the second end of the body for controlling water current that sprinkles from the sprinkling device.

Abstract: A wave generator including a base seat and an annular adjustment seat. A bottom face of the base seat is formed with a bubbling hole. Multiple sprinkling holes are formed along the circumference of the bubbling hole. The bottom edge of the adjustment seat is formed, with multiple downward extending parallel cleaning pins respectively corresponding to the sprinkling holes. When a user moves the base seat upward, permitting the water to flow out from the bubbling hole, the cleaning pins are respectively passed through the sprinkling holes to push out and clear off the dirt attaching to the wall faces of the sprinkling holes.

Abstract: A kitchen-used sprinkling gun including a main body, a cap body and a switch unit. The cap body is clockwise and counterclockwise rotatably disposed on the main body. The cap body is formed with a central outlet section and a circumferential outlet section. The switch unit is disposed in the cap body. A spring serves to push a valve body to optionally seal one of two dividing holes of a water dividing disc. The two dividing holes respectively communicate with the central outlet section and the circumferential outlet section. A water generator is disposed between one dividing hole and the central outlet section. When a user turns the cap body, the water dividing disc is driven, whereby the flowing path of the water can be changed to discharge the water in different patterns.