An unmanned aerial vehicle (UAV) includes a sprayer configured to generate a pressurized fluid flow and a nozzle configured to receive the pressurized fluid from the sprayer and to generate a spray fan to apply the fluid to a surface. The UAV includes sensors and a control unit to control both flight of the UAV and spraying by the sprayer. The fluid can be stored onboard the UAV in a reservoir or can be remotely stored and pumped to the UAV. The UAV control unit can be preloaded with a spray plan and a flight plan, or the UAV can be controlled by a user.

A bird diverter applicator for drones is disclosed. The bird diverter applicator for drones reduces the risk of electrocution to ground crews and eliminates the need to de-energize the power lines for installation of the bird diverters.

A hammering test system includes a hammering test device including a target, a flying unit, and a hammering test mechanism configured to conduct a hammering test on a test object, a surveying instrument including a scanner for acquiring point cloud data by scanning with scanning light, and configured to be capable of performing tracking and distance and angle measurements of the target, and an arithmetic processing unit including a point cloud data analyzing unit configured to calculate shape data by analyzing point cloud data acquired by the scanner, and a flight plan calculating unit configured to calculate a flight plan of the hammering test device based on the shape data calculated by the point cloud data analyzing unit, and the surveying instrument tracks the target of the hammering test device and makes distance and angle measurements when the hammering test mechanism conducts a hammering test.

A marker ball mounting device, comprising a spring-loaded clamp, adapted with a spring-loaded arrangement to force and maintain said spring-loaded clamp in a closed state, and with a collapsible trigger capable of forcibly holding said spring-loaded clamp in an open state; and seat that attaches to the side of a marker ball and supports said spring-loaded clamp, wherein said seat comprises a clasp that supports said spring-loaded clamp and provides firm attachment thereof with said seat, wherein said spring-loaded clamp is configured to detachably connect with a suspension device while being held in an open state by said collapsible trigger and to simultaneously clamp onto a cable, that trips said collapsible trigger, and disconnect from said suspension device.

Provided is a discharge apparatus to which an aerosol container can be detachably mounted, the discharge apparatus including: a pressing unit configured to press a stem for opening and closing a valve of the aerosol container; and a buffer unit configured to buffer excess force, which is an amount of force by which force with which the pressing unit presses the stem has exceeded force to open the valve. The buffer unit may be configured to buffer the excess force exerted on the pressing unit by moving the pressing unit according to the excess force. The buffer unit may be configured to buffer the excess force exerted on the aerosol container by moving the aerosol container according to the excess force.

An unmanned aerial vehicle (UAV) includes a sprayer configured to generate a pressurized fluid flow and a nozzle configured to receive the pressurized fluid from the sprayer and to generate a spray fan to apply the fluid to a surface. The UAV includes sensors and a control unit to control both flight of the UAV and spraying by the sprayer. The fluid can be stored onboard the UAV in a reservoir or can be remotely stored and pumped to the UAV. The UAV control unit can be preloaded with a spray plan and a flight plan, or the UAV can be controlled by a user.

Described herein are unmanned aerial vehicles (UAV) for applying liquids to a surface, for example high altitude or difficult to reach surfaces. The UAV can include one or more propellers rotatably coupled to a body; a processor; a power source coupled to the processor and the one or more propellers; a reservoir removably coupled to the body; and an applicator coupled to the paint reservoir or the body. The applicator is fluidly coupled to the reservoir and electrically coupled to the processor.