A coating device includes a vacuum chamber, a crucible, at least one spray head for preparing the coating material, and an injector tube, wherein the injector tube is designed to conduct the prepared coating material to the crucible and is connected to the crucible, wherein the at least one spray head can be moved between an operating position, in which the spray head supplies the injector tube with the prepared coating material, and a removal position, and wherein at least one removal chamberis provided which is designed to be accessible from outside the vacuum chamber and which can be sealed off from the vacuum chamber and in which the at least one spray headin its removal position is separated from the vacuum chamber in a gas-tight manner.

A brushless car wash system includes a wash unit that washes upper surfaces of the vehicle. The height of the wash unit is adjusted based on the contour of the upper surfaces of the vehicle. Adjusting the height of the wash unit results in increased wash performance of the brushless car wash system.

A brushless car wash system includes a wash unit that washes upper surfaces of the vehicle. The height of the wash unit is adjusted based on the contour of the upper surfaces of the vehicle. Adjusting the height of the wash unit results in increased wash performance of the brushless car wash system.

Provided is an unmanned aerial vehicle including: a discharge port configured to discharge contents in a container; an expansion/contraction unit configured to connect the discharge port and the container and be expandable; and a discharge position control unit configured to control expansion/contraction of the expansion/contraction unit.

A spray device and a method of using the spray device are provided. The spray device facilitates the application of a liquid such as a pretreatment liquid to an area of a fabric material. The spray device can be positioned on or adjacent portions of the fabric material and/or a substrate supporting the fabric material. The spray device can be activated to spray the pretreatment liquid and move the spray device on portions of the fabric material and/or the substrate supporting the fabric material.

An effective implementation is shown for a height adjustment system for a plurality of spray guns used in a line striper.

An effective implementation is shown for a height adjustment system for a plurality of spray guns used in a line striper.

An automatic agricultural machine according to the present invention includes: a fixed base disposed on farmland; a first-direction movement guide part installed on the fixed base so as to be spaced apart from the farmland; a first-direction movement trolley configured to travel on the first-direction movement guide part; and an automatic spraying device configured to travel on a second-direction movement guide part connected to the first-direction movement trolley, wherein traveling control of the first-direction movement trolley and winding control of the second-direction movement guide part are performed on the basis of at least any one of the trigonometric function principle and the Pythagorean theorem.

An automatic agricultural machine according to the present invention includes: a fixed base disposed on farmland; a first-direction movement guide part installed on the fixed base so as to be spaced apart from the farmland; a first-direction movement trolley configured to travel on the first-direction movement guide part; and an automatic spraying device configured to travel on a second-direction movement guide part connected to the first-direction movement trolley, wherein traveling control of the first-direction movement trolley and winding control of the second-direction movement guide part are performed on the basis of at least any one of the trigonometric function principle and the Pythagorean theorem.

A nozzle for an atomizer includes a plate, a piezoelectric actuator, a body, and a connector. The plate defines an aperture. The actuator is configured to oscillate the plate. The body supports the plate. The connector is configured to reversibly mount the body to the atomizer in a first orientation and in a second orientation. In the first orientation, fluid exits the nozzle along a first axial direction through the aperture. In the second orientation, fluid exits the nozzle along an opposite axial direction through the aperture.