Abstract: A method and apparatus to create falling snow for use at ski resorts, theme parks and test and training facilities for use with drones, motor vehicles, autonomous vehicles and aircraft components.

Abstract: A fire-fighting nozzle includes a tubular inlet having an inlet opening, the inlet extending along a longitudinal axis from the inlet opening toward a shut-off valve, a tubular outlet having at least one nozzle opening, the outlet extending along a transverse axis transverse to the longitudinal axis toward the nozzle opening, and a sealing valve being arranged between the inlet and the nozzle opening and sealing the outlet in a sealing region with respect to the inlet. A radial distance of the sealing region from the longitudinal axis is smaller than or equal to a smallest radial distance of the inner circumferential surface of the inlet opening from the longitudinal axis in a region between the inlet opening and the sealing region.

Abstract: A spray tip comprises a tip body, a tip piece, and a pre-orifice piece. The tip body has a fluid channel along a channel axis (AC). The tip piece is disposed within the fluid channel, and has a stepped, narrowing passage that terminates in an outlet orifice. The pre-orifice piece has an inlet passage, and is disposed within the fluid channel, abutting and immediately upstream of the tip piece. The pre-orifice piece and the tip piece together define a turbulating chamber therebetween.

Abstract: A low flow compact spray head design for cleaning applications, especially for camera lens wash includes a miniature spray nozzle head which is about 5 mm in diameter or less for a single direction spray nozzle and about 8 mm in diameter of less for a nozzle with multiple sprays. The washer fluid is fed from the bottom of nozzle along a flow axis and is separated into two flows via two power nozzles or inlets which turn the flows 90° to become opposing jets impinging upon each other inside an interaction region. Uniform stream lines are generated by the two direct facing jets and converge at the nozzle throat to become a uniform spray fan, which is on a plane perpendicular to the axis of cylindrical nozzle head. This fluidic circuit design enables a miniature size low flowrate nozzle to operate well consistently with low flow rate (e.g.

Abstract: The invention concerns a pneumatic control device (1) for multi-zone fire extinguishing installations, comprising a control pressure inlet port (25) for connection to a control pressure source (105), in particular a pressurised gas container, a number (m) of first control pressure outlet ports (17) for connection to a corresponding number of extinguishing agent containers (107), a number (n) of second control pressure outlet ports (19) for connection to a corresponding number of zone valves (111), and a plurality of function modules (7, 9).

Abstract: A double tentacle pump system for a liquid sprayer includes first and second tentacle pumps positioned serially within a flow path that extends between a liquid container and the outlet of the sprayer. A motor is configured to actuate the first and second tentacle motors in response to a user directed trigger, thereby causing fluid to be moved from the container and expelled from the sprayer.

Abstract: A mid-mount fire apparatus includes a chassis, a body assembly coupled to the chassis, a front cabin coupled to the chassis forward of the body assembly, a front axle coupled to the chassis, a tandem rear axle coupled to the chassis, and a ladder assembly having a proximal end that is coupled to the chassis rearward of the front cabin and between the front axle and the tandem rear axle. The ladder assembly includes a plurality of ladder sections. The ladder assembly is extensible to a horizontal reach of at least 88 feet. A distal end of the ladder assembly does not extend beyond the rear end of the body assembly when fully retracted.

Abstract: Systems and methods for dispensing measured amounts of a granular material, wherein one embodiment is a dispensing apparatus having a dispensing body, a handle and a handle extension coupled between the handle and the dispensing body. The dispensing body has a measuring container with a cavity of known volume, as well as a filling mechanism and a dispensing mechanism. The filling mechanism is selectively activated to fill the cavity of the measuring container with the granular material, and the dispensing mechanism is selectively activated to release the granular material from the cavity to dispense only the predetermined amount of the granular material that fills the cavity of the measuring container from the apparatus. A trigger on the handle is coupled to the filling mechanism and the dispensing mechanism via a linkage in the handle extension, and activation of the trigger selectively activates the filling mechanism and the dispensing mechanism.

Abstract: An automatic dry fire protection sprinkler assembly and method of operation. The sprinkler assembly includes an elongate tubular outer housing having a fluid discharge end with an outlet opening, an internal channel and a contact surface proximate the outlet opening. A fluid deflection member is coupled to the housing at a preferably fixed distance from the outlet opening. An internal fluid control assembly includes an ejectable member that is ejected out the outlet opening and displaced out of the fluid flow path between the housing and the fluid deflection member. Upon sprinkler actuation, the fluid control assembly engages the internal channel to axially guide the fluid control assembly and prevent rotation of the fluid control assembly about the sprinkler axis. A surface contact between the ejectable member and the internal shelf causes the ejectable member to pivot clear of the sprinkler housing and the fluid deflection member.

Abstract: A self-cleaning device and a water outlet device are provided. The self-cleaning device includes a liquid flow chamber, one or more ejector pins, and an elastic deformation body. The self-cleaning device is configured to remove scale in one or more liquid outlet holes of the self-cleaning device automatically.

Abstract: A fluid dispensing device includes a housing and a reciprocating piston fluid pump coupled to the housing. The reciprocating piston fluid pump includes a piston. The piston is configured to pressurize at least one pumping chamber. A motor is connected to the reciprocating piston fluid pump to actuate the piston. A spray tip connected to an outlet of the at least one pumping chamber.

Abstract: A liquid spray gun nozzle assembly is disclosed comprising a coating liquid inlet portion and a coating liquid outlet portion, and a coating liquid flow path connecting the coating liquid inlet with the coating liquid outlet. The spray gun connection portion opposite the coating liquid outlet portion is adapted to connect the liquid spray gun nozzle assembly to a compatible liquid spray gun body. The spray gun connection portion includes a first access window formed in a body of the liquid spray gun nozzle assembly proximate to the liquid flow path and a third sealing member configured to facilitate provision of a liquid needle within a liquid needle zone. The third sealing member having a distal end protruding beyond a first or second sealing member.

Abstract: A fluid dispensing device includes a housing and a reciprocating piston fluid pump coupled to the housing. The reciprocating piston fluid pump includes a piston. The piston is configured to pressurize at least one pumping chamber. A motor is connected to the reciprocating piston fluid pump to actuate the piston. A spray tip connected to an outlet of the at least one pumping chamber.

Abstract: A shower head includes a housing, and a jet faceplate mounted to the housing and including a first water jetting area composed of a plurality of subunits and a second water jetting area having a second jet hole therein. The subunits are arranged to present an arc-shaped distribution, each defining therein a plurality of first jet holes. The subunits are in a fan-shaped area of the jet faceplate so that the water line of the ejected water can be concentrated and fan-shaped, enhancing the effect of removing dirt.

Abstract: A showerhead including a head portion including a plurality of nozzles, a handle extending from the head portion and including an inlet, and a pause assembly positioned within the handle to control water flow from the inlet to the plurality of nozzles is disclosed. The pause assembly includes a control extending outwardly from the handle for manipulation by a user to change a state of the pause assembly and an actuator that translates motion of the control to change the state of the pause assembly.

Abstract: A hand-held shower head includes a fixing element, a rotating element and a first spring. The fixing element is provided with a water inlet channel and a first water outlet channel for flushing water. The rotating element is rotatably connected with the fixing element and is provided with a water passage and a second water outlet channel for spraying water. The first spring is disposed between the fixing element and the rotating element. When the rotating element rotates to a first position, the water passage communicates with the water inlet channel and the first water outlet channel, and the first spring is elastically deformed. When the rotating element is released from the first position, the first spring elastically recovers to drive the rotating element to rotate to a second position, and the second water outlet channel communicates with the water inlet channel.

Abstract: An agricultural vehicle is moveable across a surface. The agricultural vehicle includes a chassis, a traction member coupled to the chassis with the traction member configured to engage the surface and move the chassis relative to the surface, a holding tank coupled to the chassis with the holding tank configured to support agricultural matter, a support boom coupled to the chassis, and a plurality of applicator assemblies. Each applicator assembly of the plurality of applicator assemblies includes a resilient body coupled to the support boom, a foot coupled to the body with the foot configured to be biased into engagement with the surface via the resiliency of the body, and a nozzle. The nozzle is in communication with the holding tank and configured to dispense the agricultural matter.

Abstract: A water-fertilizer-pesticide integrated multifunctional irrigation spray head, mainly including a first spray hole, a second spray hole, a spray head cap, a spray head body, an atomization core, water passing holes, springs, cover sheets, a pipe connector, water outlet holes, a throat cavity, a chamfered groove, and a helical groove. The spray head is configured as a double-flow channel structure. The spray head body and the atomization core are provided in the spray head cap. The atomization core is provided in an inner cavity of the spray head body and is threadedly connected. The bottom of the spray head body is provided with cover sheets, each of the cover sheets is connected by a respective one of the springs. When the working pressure is a low pressure, the cover sheets are in an open state, and the liquid is sprayed by means of two flow channels.

Abstract: A system for actuating a boom assembly of an agricultural sprayer, the system having a frame, a boom assembly supported relative to the frame, and a linkage assembly configured to couple the boom assembly to the frame. The linkage assembly includes a support arm pivotably coupled between the frame and the boom assembly, a lift actuator pivotably coupled between the frame and the support arm and configured to raise and lower the boom assembly in a vertical direction, and a nit actuator pivotably coupled between the frame and the boom assembly and configured to adjust a tilt angle of the boom assembly relative to the vertical direction. The system further includes a controller configured to selectively actuate the tilt actuator to adjust the tilt angle of the boom assembly to an operational tilt angle.

Abstract: Disclosed is a sprinkler system including a controller, wherein when the sprinkler system is in a pressurized mode, the controller is configured for: rendering a first determination to transition the sprinkler system to a standby mode, and executing a first communication with a vacuum pump based on the first determination, the first communication directing the vacuum pump to activate, whereby fluid is drained from the sprinkler system.