Methods for manufacturing foam wall structures are described. The methods include placing a wall structure proximate to a robotic arm, orienting an imaging device so that the imaging device on the robotic arm faces a cavity in the wall structure, surveying the cavity using the imaging device, determining a spray foaming pattern to fill the cavity to a selected depth with a foam layer, orienting the spray nozzle so the spray nozzle faces the cavity, and spray-applying the foam-forming composition into the cavity to the selected depth by passing the foam-forming composition through the spray nozzle to form the foam layer. Foam wall structure manufacturing systems that are suitable for carrying out such methods are also described.

Provided is a dispensing head with a trigger for a dispensing device having a frame, a piston chamber, a piston, a dispensing duct, a suction duct, pre-compression valve means, suction valve means, and a nozzle assembly having a nozzle and a dual chamber foamer. The dispensing head is particularly effective for dispensing products with sanitizing and antimicrobial effect.

A water spray gun includes a main body, an operating member and a switch part. The main body includes a handle portion and a tube portion extended from the handle portion and provided with a spray head. A control assembly is enclosed in the main body for control of water outflow and adjustment of the amount of the water outflow. The operating member is pivotally connected to the position where the handle portion meets the tube portion. The switch part is arranged at the operating member and is engaged with the control assembly. The amount of water outflow is controlled by relative movement between the switch part and the operating member.

A handheld sprayer nozzle is provided that has dual levers connected to an internal rotary valve for easily and comfortably controlling and turning on and off the flow of water or other liquid or fluid emitted through the sprayer nozzle and out of its head from either side of the sprayer regardless of the orientation of the sprayer head relative to a user holding the sprayer nozzle. The handheld sprayer nozzle is connectable to an end of a pressurized hose. The sprayer nozzle's dual control levers are located on opposite sides of the sprayer nozzle so as to be generally located in positions opposite to one another and may be easily operated from either side of the sprayer nozzle by a user's thumb. The sprayer nozzle's head is also detachable so that sprayer heads of different lengths and spray patterns can be attached to the sprayer nozzle for different uses.

A shower head with alternating outlet function, includes: an inlet waterway with an inlet port, an outlet port, a waterway, an outlet terminal having at least two mutually independent outlet cavities rotatably distributed on a plane, and all have outlet holes, alternating inlet holes and synchronous inlets; the outlet holes are disposed on the outlet surface of the shower head; and an alternating cavity with alternating inlets, fixed to the outlet terminal. The alternating cavity is connected to all alternating inlet holes. The interior thereof is disposed with a hydraulic alternating device to make the alternating inlets to connect to the alternating inlet holes in alternating manner driven by water pressure. The synchronous inlets and the alternating inlets are switched to connect to the outlet port by a water diversion plate.

A shower head with alternating outlet function, includes: an inlet waterway with an inlet port, an outlet port, a waterway, an outlet terminal having at least two mutually independent outlet cavities rotatably distributed on a plane, and all have outlet holes, alternating inlet holes and synchronous inlets; the outlet holes are disposed on the outlet surface of the shower head; and an alternating cavity with alternating inlets, fixed to the outlet terminal. The alternating cavity is connected to all alternating inlet holes. The interior thereof is disposed with a hydraulic alternating device to make the alternating inlets to connect to the alternating inlet holes in alternating manner driven by water pressure. The synchronous inlets and the alternating inlets are switched to connect to the outlet port by a water diversion plate.

A fluid delivery system for dispensing fluid can include a dispenser, such as a trigger engine-type dispenser (100), configured to draw fluid up from a container. A nozzle assembly can include a nozzle (160), and a nozzle slide (112). The nozzle slide can be configured to slide and/or rotate relative to the shroud (102) to provide different dispensing modes. In alternative examples, the nozzle (160) can be configured to rotate in 30 degree increments relative to the shroud (102) to provide the different dispensing modes or the nozzle assembly can include a nozzle extension, and the nozzle extension can be configured to rotate relative to the shroud to provide different dispensing patterns out of the nozzle. In another example a first nozzle can be configured to provide one or more dispensing modes, and a second nozzle can be configured to provide a different dispensing mode than the first nozzle. Methods of dispensing fluids and methods of assembling fluid dispensers are also disclosed.

A fluid delivery system for dispensing fluid can include a dispenser, such as a trigger engine-type dispenser (100), configured to draw fluid up from a container. A nozzle assembly can include a nozzle (160), and a nozzle slide (112). The nozzle slide can be configured to slide and/or rotate relative to the shroud (102) to provide different dispensing modes. In alternative examples, the nozzle (160) can be configured to rotate in 30 degree increments relative to the shroud (102) to provide the different dispensing modes or the nozzle assembly can include a nozzle extension, and the nozzle extension can be configured to rotate relative to the shroud to provide different dispensing patterns out of the nozzle. In another example a first nozzle can be configured to provide one or more dispensing modes, and a second nozzle can be configured to provide a different dispensing mode than the first nozzle. Methods of dispensing fluids and methods of assembling fluid dispensers are also disclosed.

A firefighting nozzle comprises an elongated barrel having a inlet opening at one end for engaging a source of fluid under pressure and a discharge opening at an opposite end for engaging a discharge element for dispensing the fluid under pressure. A valve arrangement includes a slide valve element slidably mounted within the barrel for reciprocating movement along the length of the barrel to adjust the flow of fluid through the barrel. The nozzle includes a pistol grip trigger assembly mounted on the barrel that includes a segment gear pivotably for engaging a toothed surface of the slide valve element so that rotation of the segment gear causes reciprocation of the slide valve element. A four-bar linkage arrangement is incorporated between a manually actuated trigger to translate depressing the trigger to controllable reciprocation of the slide valve element. The four-bar linkage provides a mechanical advantage that allows the firefighter to easily control the trigger and thus the fluid discharge from the nozzle.

A firefighting nozzle comprises an elongated barrel having a inlet opening at one end for engaging a source of fluid under pressure and a discharge opening at an opposite end for engaging a discharge element for dispensing the fluid under pressure. A valve arrangement includes a slide valve element slidably mounted within the barrel for reciprocating movement along the length of the barrel to adjust the flow of fluid through the barrel. The nozzle includes a pistol grip trigger assembly mounted on the barrel that includes a segment gear pivotably for engaging a toothed surface of the slide valve element so that rotation of the segment gear causes reciprocation of the slide valve element. A four-bar linkage arrangement is incorporated between a manually actuated trigger to translate depressing the trigger to controllable reciprocation of the slide valve element. The four-bar linkage provides a mechanical advantage that allows the firefighter to easily control the trigger and thus the fluid discharge from the nozzle.