A sprinkler assembly includes a sprinkler body and a tubular connection fitting. The tubular connection fitting includes a first end for connection to a fluid supply pipe and a second end with the sprinkler body inserted therein, the tubular member including an outer surface and an inner surface defining an internal conduit extending along a longitudinal axis, the inner surface of the tubular member includes a first stop surface spaced from the first end to define an insertion depth for the fluid supply pipe and a second stop surface to limit insertion of the sprinkler body into the second end. The first stop surface defines an annular channel for housing an end of the fluid supply pipe.

A spool and wobbler assembly for a sprinkler includes a spool section with facing spool flanges on opposite sides of a spool core, where at least one of the spool flanges includes a circumferential rolling ledge. A wobbler cage including a wobbler ring is supported on the spool section, and a water deflector plate is coupled with the wobbler cage. An underside of the wobbler ring is provided with a circumferential rolling surface that engages the circumferential rolling ledge of the at least one spool flange. The rolling surface and rolling ledge provide for smoother orbital motion of the deflector plate.

A spray gun includes a barrel having a path between an entrance and an outlet. A guide member is connected to the outlet. A rotary member has a tapered way defined therein, and a Venturi tube is partially located in the tapered way. A spray head is connected to the front end of the barrel and has an orifice defined in the spray head. A room is formed by the guide member and the spray head. The rotary member is located in the room. Pressurized liquid passes through the path and enters into the room to rotate the rotary member, and the detergent is sucked by the Venturi tube and spread out from the orifice in a rotational pattern.

A liquid-emitting device for gravity-based irrigation systems includes a support structure that defines a first axis and has a nozzle for generating an irrigation jet coaxial with the first axis, a tubular body below the support structure, and a baffle plate facing the nozzle and rotatably mounted in the tubular body to rotate about a second axis. The nozzle is stationary and the second axis is free to rotate about the first axis with a precessional motion. Guides are removably coupled to the tubular body to interact with the baffle plate and prevent the precessional motion while allowing the rotational motion about the second axis. A diverting member may be removably positioned downstream from the nozzle to distribute the liquid over an area of the soil. An arrangement of a nutating liquid-emitting device in combination with an anti-nutating adaptation kit is also disclosed.

An irrigation device includes a body defining a fluid passage; a slider movably coupled to the body, wherein the slider includes a body defining a plurality of apertures and a plurality of projections extending away from the body; a plurality of flexible jets coupled longitudinally to the body, wherein the plurality of flexible jets receive fluid from the fluid passage, and wherein each jet is received by an aperture in the plurality of apertures of the slider; and a toggle rotatably coupled to the body and to the slider, wherein the toggle is rotatably coupled to the body in substantial alignment with the plurality of jets, and wherein rotation of the toggle in a first direction moves the slider to cause at least one projection of the slider to engage with at least one jet to adjust a position of the at least one jet.

Rotary nozzles and deflectors for use with rotary nozzles are provided. The deflector includes a number of flutes that deliver fluid streams radially outwardly from the deflector. Fluid striking the flutes of the deflector cause the deflector to rotate, and the flutes subdivide fluid impacting deflector into multiple fluid streams that are distributed radially outwardly to surrounding terrain as the deflector rotates. Each of the flutes have the same curvature, although they may have different inclinations to distribute fluid streams at different trajectories. The flutes may also include blocking and downward-facing features at the ends of the flutes to improve the evenness of the fluid distribution in the irrigation coverage area.

A sprinkler comprises a sprinkler head (102) and a sprinkler base (101). The sprinkler base comprises a hollow body having an inlet (104) and a first outlet (105). The first outlet (105) is in fluid communication with the inlet (104). The inlet (104) has an inlet axial orientation which is substantially perpendicular to a first outlet axial orientation of the first outlet (105), which is perpendicular to the inlet axial orientation. The sprinkler base (101) further comprises two or more sprinkler head protection elements (115) located onopposite sides of the first outlet and extending beyond the first outlet in the direction of the first outlet axial orientation.

A system and method for the application of friction-modifying coatings to roadways, walkways, pathways and other areas subject to vehicular, human or animal traffic, the system and method comprising the controlled, simultaneous application of binder and filler to a surface of a substrate, using a mobile device which passes over the substrate as the binder and filler are being applied. The system includes a mobile platform configured for being coupled to a vehicle. A binder applicator is mounted on the mobile platform and includes an array of spray nozzles coupled to a resin container. An air knife is mounted on the mobile platform and coupled to an air compressor for generating an air curtain. An aggregate dispenser bar including at least one aggregate dispenser is coupled to an aggregate bin and mounted on the mobile platform for dispensing aggregate.

A system and method for the application of friction-modifying coatings to roadways, walkways, pathways and other areas subject to vehicular, human or animal traffic, the system and method comprising the controlled, simultaneous application of binder and filler to a surface of a substrate, using a mobile device which passes over the substrate as the binder and filler are being applied. The system includes a mobile platform configured for being coupled to a vehicle. A binder applicator is mounted on the mobile platform and includes an array of spray nozzles coupled to a resin container. An air knife is mounted on the mobile platform and coupled to an air compressor for generating an air curtain. An aggregate dispenser bar including at least one aggregate dispenser is coupled to an aggregate bin and mounted on the mobile platform for dispensing aggregate.

A speed retarding device for a rotary nozzle includes a hollow cylindrical housing and a rotatable tubular shaft rotatably carried by the housing. The shaft has a central axial bore and an enlarged drag sleeve portion carried in the housing. A pair of support bearings support the drag sleeve portion of the shaft in the housing. An annular inner seal between each of the support bearings and the drag sleeve portion defines a cavity within the housing receiving a viscous fluid confined within the cavity. The drag sleeve portion includes a peripheral helical groove and a plurality of axial bores extending therethrough parallel to the central bore, one or more blind axial bores each having a closed end an open end, and a piston disposed in each of the one or more blind axial bores each defining an air space between the closed end and the piston.