An air passage and two lines of cleaning liquid paths are provided in a nozzle, and the air passage is bifurcated into two lines of distal end portions. Then, a distal end portion of the cleaning liquid path and the distal end portion of the air passage are merged. Thus, if the compressed air is supplied to the air passage, the resulting air flow causes a negative pressure on the downstream side. This enables making a cleaning liquid into the form of a mist and suctioning it, and to mix the cleaning liquid in the form of a mist with the compressed air, whereby it is possible to clean the lens surface and to reduce the amount of the cleaning liquid used.

A sprinkler head includes a sprinkler body, a nozzle positioned within the sprinkler body, a fixed gear coupled with the sprinkler body, a wobbler cage supported on the sprinkler body, and a water deflector plate coupled with the wobbler cage and disposed downstream of the nozzle. A brake assembly is coupled with the water deflector plate for slowing a rotating and wobbling motion of the wobbler cage and the water deflector plate. The brake assembly includes a shaft extending through the water deflector plate and a brake gear disposed at an end of the shaft, where the brake gear is engageable with the fixed gear. Among other advantages, the design eliminates the use of large fixed strut framework that creates dry shadows in the water pattern.

An automatic fire protection sprinkler includes a sprinkler body having a passage with an inlet end and a discharge opening. A pair of sprinkler arms extend from the sprinkler body. The pair of sprinkler arms each include a radially inwardly extending leg including a threaded bore for receiving a compression screw. The pair of sprinkler arms each include a radially outwardly extending leg each defining an aperture therein. An outlet closure assembly includes a closure element that selectively blocks the discharge opening of the sprinkler body and a trigger assembly including a yoke that engages the compression screws and a glass bulb that extends between the yoke and the closure element. A deflector is coupled to the sprinkler arms by a pair of support pins that are received in the apertures in the radially outwardly extending legs of the at least two sprinkler arms.

A spray nozzle that includes a nozzle body defining a first surface, a cap defining a second surface able to define an annular nozzle opening therebetween, a turbine having a plurality of radially extending fins circumferentially positioned about the nozzle opening for directing the flow of fluid exiting the nozzle opening, and a reverser member including a cup portion positioned below the cap to intercept the flow of fluid from a flow passage of the cap. The reverser member coupled to the turbine such that the reverser member is caused to rotate in response to rotation of the turbine.

Fire protection mist nozzles for industrial oil cookers, oil cookers with fire protection systems, and method of oil cooker fire protection are provided. The mist nozzles operate at pressures between 170 and 250 psi, and provide a unique distribution pattern that allows for variable installations for protection in certain operative environments including oil cookers with various hood configurations. The fire protection nozzles includes a base defining an inlet and an outlet along an axis. The base includes an orifice having an inlet diameter and an outlet diameter. The outlet diameter is preferably greater than the inlet diameter; and the orifice defines a K-factor of less than 1.0 gpm/psi½. The nozzle includes a diffuser aligned with the orifice. The diffuser has a preferably substantially domed portion with a maximum diameter that is less than the summation of the inlet diameter and the outlet diameter of the orifice.

An automatic nozzle for firefighting low-pressure water mist systems comprising a nozzle body and shutter means, said nozzle body comprising a plurality of axial-symmetric components defining an inlet opening and a plurality of inner cavities, which are fluid-dynamic connected each other by means of one or more openings, being said components configured to generate a radial spray through a circumferential opening, which extends all over the circumference of a second component, said circumferential opening being formed between a base of an annular board of the second component and an upper surface of a hollow body of a third component, and two or more full cone sprays by means of the fluid passage through cylindrical openings on a circular and axial-symmetric body of a fifth component, configured to define a turbulent motion of the fluid in at least two correspondent cylindrical cavities of a fourth component.

An above ground sprinkler is revealed. The ground sprinkler includes a channel controller, a housing with a driving member mounted therein, an adjustment part, a locking plate, a first cover, and a second cover. A tube is extended to form two plates with a retaining groove therebetween. A rib is disposed on an outer side of the plate. The first cover includes a column part with an insertion part while the second cover includes a tongue part. Locking parts are disposed on the insertion part. The insertion part is fitted over the plates while the ribs of the plates are locked with the locking parts. When the second cover is covered over the first cover, the tongue part is mounted into the retaining groove so that the two plates are leaning against and locked by the locking parts tightly, unable to be released.

A medical spraying device and method, for irrigating a wound, having a liquid reservoir for a medical irrigation liquid or a connection for such a liquid reservoir and an arrangement for applying pressure to the medical irrigation liquid, such that the irrigation liquid is pushable through a nozzle by the pressure acting on the irrigation liquid in order to produce a spray cone. The nozzle has a plurality of openings, which are arranged at an angle to one another in such a way that the irrigation liquid jets exiting from the openings, at a such flow rate and angle, meet in an atomization space and/or a discharge opening of the nozzle; thus, a spray cone is produced from the atomized irrigation liquid.

A container cleaning device includes a mounting plate shaped for accommodating a wafer; and a nozzle assembly disposed on the mounting plate and including a base and a shell complimentarily disposed on the base. The shell includes an inlet and at least one outlet member disposed on an edge. The base includes a recess communicating with the inlet, and at least one outlet element each being inclined at a predetermined angle with respect to the shell. Each outlet member of the shell is adjacent to and communicates with the corresponding outlet element of the base.

An insert of a cartridge for use with a liquid diffusing device is provided. The insert includes a body, an inlet provided in the body to receive diffused liquid generated within the cartridge during operation of the liquid diffusing device, an outlet zone defined at least in part by the body through which to discharge the diffused liquid toward an external environment, and a tortuous passage extending between the inlet and the outlet zone to aid in further reducing an average particle size of the diffused liquid as the diffused liquid moves through the tortuous passage. Removable cartridges for use with a diffusion device are also provided which include such an insert.