A fire exposure protection sprinkler assembly provides fire exposure protection for one or more windows and includes a fire exposure protection sprinkler, a sealing assembly configured to unseal in response to a fire such that fire exposure protection fluid may flow from the fire exposure protection sprinkler, and a housing having a pair of legs, with each of the legs having an aperture. The assembly also includes a deflection assembly configured to extend from the housing due to gravity and activation of a cover plate, with a deflector configured to disperse the fire exposure protection fluid over the one or more windows so as to wet the one or more windows.

The present invention provides a surface following nozzle, an observation device for a moving object surface, and an observation method for the moving object surface that can remove water in the vicinity of the nozzle while following changes in the shape and changes in the distance of a moving object. A surface following nozzle includes a nozzle that injects gas from a tip end thereof, a separating part that closes a base end of the nozzle, and an extending and contracting part that is provided at a rear side of the nozzle via the separating part, and extends and contracts along an axial direction of the nozzle. The extending and contracting part includes an elastic body that applies a forward force with respect to the nozzle.

A sprinkler head nozzle assembly in accordance with an embodiment of the present invention includes a housing including an inlet for pressurize water and an outlet downstream of the inlet, a valve member, operable to extend and reduce an arcuate opening at the outlet of the housing, wherein the size of the arcuate opening indicates the arc of coverage of the sprinkler head nozzle assembly and a rotating distributor, mounted on a central shaft extending through the housing and the valve member, and operable to deflect a flow of water from the arcuate opening out of the nozzle assembly.

A sprinkler head nozzle assembly in accordance with an embodiment of the present invention includes a housing including an inlet for pressurize water and an outlet downstream of the inlet, a valve member, operable to extend and reduce an arcuate opening at the outlet of the housing, wherein the size of the arcuate opening indicates the arc of coverage of the sprinkler head nozzle assembly and a rotating distributor, mounted on a central shaft extending through the housing and the valve member, and operable to deflect a flow of water from the arcuate opening out of the nozzle assembly.

A water stream stop valve for a sprinkler includes a tube body, an annular cover, multiple securing units, and a drainage body having a hole at the center thereof, is arranged above the tube body by multiple support plates. The water stream stop valve is incorporated in a pop-up sprinkler that includes a main body, an expansion pipe with a stop member arranged at top internal diameter thereof, a spray head, and the water stream stop valve arranged inside the expansion pipe and below the spray head. When the spray head falls off expansion pipe, the water stream stop valve will be pushed up to the top of the expansion pipe and stop at the stop member for avoiding the overflow of water while maintaining the spraying at the original area, and delivering a service indication stream.

A water stream stop valve for a sprinkler includes a tube body, an annular cover, multiple securing units, and a drainage body having a hole at the center thereof, is arranged above the tube body by multiple support plates. The water stream stop valve is incorporated in a pop-up sprinkler that includes a main body, an expansion pipe with a stop member arranged at top internal diameter thereof, a spray head, and the water stream stop valve arranged inside the expansion pipe and below the spray head. When the spray head falls off expansion pipe, the water stream stop valve will be pushed up to the top of the expansion pipe and stop at the stop member for avoiding the overflow of water while maintaining the spraying at the original area, and delivering a service indication stream.

An arid land sprinkler device includes a sprinkler head frame having a base connectable to a water supply source; at least one sprinkler arm extending from the sprinkler head frame, the sprinkler arm receiving water from the water supply source, wherein water source pushes a piston rod positioned within a pop-up box which consequentially pushes a shaft tube of the arid land sprinkler device also positioned within the pop-up box, causing the shaft tube to pop upwards and open outside of the pop-up box, causing a hydraulic arm with an aerator screen to open. A process of showering raindrops for watering an area using an arid land sprinkler is also disclosed enabling the at least one sprinkler arm to rotate in a full circle (360°) or a half circle (180°), based on plant needs, thereby preventing evaporation, overwatering of root zones, and overlapping wetting zones.

An arid land sprinkler device includes a sprinkler head frame having a base connectable to a water supply source; at least one sprinkler arm extending from the sprinkler head frame, the sprinkler arm receiving water from the water supply source, wherein water source pushes a piston rod positioned within a pop-up box which consequentially pushes a shaft tube of the arid land sprinkler device also positioned within the pop-up box, causing the shaft tube to pop upwards and open outside of the pop-up box, causing a hydraulic arm with an aerator screen to open. A process of showering raindrops for watering an area using an arid land sprinkler is also disclosed enabling the at least one sprinkler arm to rotate in a full circle (360°) or a half circle (180°), based on plant needs, thereby preventing evaporation, overwatering of root zones, and overlapping wetting zones.

This technology relates to system for clearing a sensor cover. The system may include a sprayer, a support, and a positioning device. The sprayer may be mounted to the support and direct a flow of fluid to the sensor cover. The positioning device may be configured to adjust the position of the sprayer on the support. The system may include a nozzle and the nozzle may be positioned to direct the flow of fluid to an area of the sensor cover. The system may include additional sprayers.

This technology relates to system for clearing a sensor cover. The system may include a sprayer, a support, and a positioning device. The sprayer may be mounted to the support and direct a flow of fluid to the sensor cover. The positioning device may be configured to adjust the position of the sprayer on the support. The system may include a nozzle and the nozzle may be positioned to direct the flow of fluid to an area of the sensor cover. The system may include additional sprayers.