Abstract: An aerial fire suppressant delivery system uses an outer box or like structure and an inner liner. The inner liner may be a polyurethane bladder with two or more plastic straps RF welded to the polyurethane bladder. The two or more plastic straps are attached both to the bottom surface of the bladder and to the top of the outer box, which is not attached to the sides of the outer box. A fixed or rotary wing aircraft drops the container filled with fire suppressant material. As the container falls, the top of the box flies from the sides of box and the top pulls against the straps. Because the straps are attached to the bladder by RF welding, the straps tear the bladder at their attachments and cause the bladder and container to release the fire suppressant material into the air over the target.

Abstract: A long throw Pop-Up Irrigation Nozzle assembly has no oscillating or rotating parts and includes a cylindrical body having a fluid inlet and a sidewall defining at least one fluidic circuit configured to generate a selected spray pattern when irrigation fluid flows through the body. In order to throw long distance, droplet velocity, droplet size and droplet initial aim angle determine the throw to provide a low precipitation rate (“PR”) for fluidic sprays. The nozzle assembly and method of the present invention achieve a PR of 1 in/hr or less and good spray distribution with a scheduling coefficient (“SC”) of about 1.5 without utilizing any moving components to provide a significantly more cost effective nozzle assembly, as compared to prior art rotator nozzles.

Abstract: The invention discloses a unidirectional spray type fire extinguishing bomb without high explosive fragmentation, includes a housing, a fuse, an igniter, an fire extinguishing agent and a main charge, and further includes a tail braking device, combustor, a plate closure, a piston and a diffuser. The housing, the tail braking device and the piston are made of light metal materials; the housing is cylindrical; the tail braking device is arranged at the bottom of the housing and is fixed with the housing through a screw nail; and the fuse is arranged on the diffuser and is fixed through a screw nail. During working process, when the fuse detects the fire extinguishing bomb to be 5-10 meters far away from a combustion source, the igniter ignites the main charge, the piston is pushed under high pressure to move in the housing, and the fire extinguishing agent is sprayed out from spraying holes to the combustion source for fire extinguishing.

Abstract: A water spray gun may comprise a main body, a water outlet unit, a spray head and a knob. The main body has a handle and a barrel portion, and interior spaces of the handle and the barrel portion are communicated with each other. A rear end and a front end of the water outlet unit respectively comprise a first connecting portion and a second connecting portion. The spray head is integrally made of plastic material, which simplifies the manufacturing process and lowers the cost, and through communicating the first through hole with the second through holes, the water flow is configured to flow in a straight line thus maintaining the momentum and speed of the water flow to perform different spraying patterns efficiently and to save labors and water.

Abstract: A nozzle changing device to remove and attach nozzles to a water shooting device is described. The device allows for removal and attachment of various nozzles on a water shooting device during or after a water display without the need for a technician to manually change the nozzles. The device may be independent or attached to the water shooting device.

Abstract: A firefighting installation includes a network of vacuum sprinklers. The installation incorporates a trip device that triggers the application of water to the network of sprinkler. The trip device includes: a master actuator sensitive to pressure present in the sprinkler network and capable of moving a yoke from a first to a second position; a lock for locking a member of the actuator in position; and a transmission member transmitting between the yoke and the locking means. The master actuator includes a membrane able to move between a first position corresponding to the sprinkler network being under vacuum and a second position corresponding to the sprinkler network being subject to atmospheric pressure, the first and second positions of the membrane corresponding to the first and second positions of the yoke.

Abstract: A method of attaching a refill to a volatile material dispenser includes the step of providing a volatile material dispenser that includes a housing, a first implement that attaches a refill containing a volatile material to the housing, and a second implement that attaches the refill to the housing, wherein the first and second implements include different features. The method further includes the step of attaching the refill in a first orientation to the volatile material dispenser, wherein in the first orientation, the first implement retains the refill. Still further, the method includes the step of attaching the refill in a second orientation different than the first orientation to the volatile material dispenser, wherein in the second orientation, the second implement retains the refill.

Abstract: A static spray mixer for the mixing and spraying of at least two flowable components is proposed having a tubular mixer housing (2) which extends in the direction of a longitudinal axis (A) up to a distal end (21) which has an outlet opening (22) for the components, having at least one mixing element (3) arranged in the mixer housing (2) for the mixing of the components as well as having an atomization sleeve (4) which has an inner surface which surrounds the mixer housing (2) in its end region, wherein the atomization sleeve (4) has an inlet channel (41) for a pressurized atomization medium, wherein a plurality of grooves (5) are provided in the outer surface of the mixer housing (2) or in the inner surface of the atomization sleeve (4) which respectively extend toward the distal end and which form separate flow channels (51) between the atomization sleeve (4) and the mixer housing (2) through which the atomization medium can flow from the inlet channel (41) of the atomization sleeve (4) to the distal end (2

Abstract: A hot beverage maker includes a pump, a kettle, a pumped fluid conduit, and a brew basket assembly. The kettle includes a reservoir, a heating element in the kettle for heating water in the reservoir, a spout for pouring water from the reservoir, and a pump inlet opening for providing heated water from the reservoir to the pump inlet. The pumped fluid conduit is connected with the pump outlet and includes a pumped fluid outlet. The brew basket assembly includes a pumped fluid outlet receptacle and a brew basket. The reservoir is selectively fluidly connectable with the brew basket via the pump inlet opening in the kettle being selectively fluidly connected with the pump inlet or the pumped fluid conduit outlet being selectively fluidly connectable with the pumped fluid outlet receptacle to selectively provide heated water from the reservoir to the brew basket.

Abstract: Exemplary fuel injectors for use in fuel injection devices are disclosed. An injector may have a control chamber, which can be selectively relieved of pressure by means of a pilot valve in order to control a nozzle needle stroke of an axially displaceable nozzle needle of the injector. The fuel injector may have at least one nozzle on a first end, and the control chamber on a second end of the nozzle needle. The control chamber may be sub-divided by a throttle plate accommodated therein into a first chamber and a second chamber, with the second chamber being positioned closer to the nozzle, and the two chambers communicating with each other via the throttle plate. First and second resilient elements may be accommodated in a pre-stressed manner against the throttle plate in the first chamber and in the second chamber, respectively.

Abstract: The invention relates to an assembly, in particular a play fountain, comprising a floor (1), a plurality of nozzles (2), preferably a reservoir for a liquid, in particular water, or means to connect the assembly to a liquid supply, and a control system (3) for controlling one or more of the nozzles (2) during operation of the assembly. The floor (1) is assembled modularly.

Abstract: A tethered unmanned aerial vehicle firefighting system includes a firefighting drone, a lifting drone and a tether line coupling the firefighting drone to a control station through the lifting drone. The control station includes a control unit for controlling the firefighting drone and the lifting drone, a fire retardant supply, a pump coupled to the fire retardant supply, and a power supply. The tether line includes a power line coupling the power source to and powering the firefighting drone and a fire retardant hose coupled between the pump and a nozzle carried by the firefighting drone. A lifting tower hold the tether from the control station at a height above ground level, and the lifting drone maintains the tether above obstruction for the firefighter drone. The firefighter drone disperses fire retardant from the nozzle for firefighting purposes and with a substantially unlimited supply of retardant and power.

Abstract: A fuel injector which includes an actuator having an electrical contact element, a plug, a fuel supply pipe, and an injection-molded housing part. The plug has a base body, an electrical connection element for an electrical connection with the electrical contact element of the actuator, and a rib which projects from the base body, the injection-molded housing part surrounding the electrical connection element of the plug and being injection-molded on the rib of the plug and the fuel supply pipe.

Abstract: In an applicator assembly for applying a fluid in which the applicator assembly defines at least a portion of a flow path, the assembly may comprise an upstream fluid source, a downstream applicator for forming a point of application, a conduit generally connecting the fluid source to the applicator, an orifice structure defining an orifice opening configured such that fluid flowing along the flow path passes through the orifice opening, and an orifice inverting structure configured to reverse flow through the orifice opening of the orifice structure.

Abstract: A material spreader assembly for the broadcast spreading of particulate material from the trailer hitch of a vehicle. A hopper for storing the particulate material is supported by a frame having a trailer hitch coupler for connection to the vehicle. A spreader including a spinner driven by an electric motor receives and disperses the particulate material. A control circuit receives electric current from the vehicle via a plug interface and a wiring harness and controls the operation of the spreader. A remote communicates user commands to the control circuit. The control circuit includes a motor control processor that controls a motor power relay and a motor driver to gradually ramp up the current supplied to the spreader for start up the spreader while preventing a high transient current draw spike. Component feedback sensors enable the motor control processor to provide an emergency shut off feature and warning signals.

Abstract: A system for dispersing liquid over a desired location, the system comprising a pressurized tank having a main body, an inlet in fluid communication with the main body for introducing liquid to the main body, an outlet in fluid communication with the main body for dispersing the liquid, and an air inlet for charging air under pressure into the main body, where the improvement comprises providing a diffuser for slowing down pressurized air entering the main body from the inlet.

Abstract: A plural component mixing system includes an automatic balance feature to balance the pressure of two or more components as they are mixed. The pressures or flow rates of the two components are monitored. If there is a difference in pressure or flow rate greater than a specified amount, a bleed valve is opened for a short period of time to balance the flows. A computer with a touch screen is used to set the pressure and flow rate differences that trigger the bleed, and to set the time period for the bleed.

Abstract: A blow gun includes a body with first and second paths, a trigger, a control unit, a first spring, a second spring and a first pin. The control unit includes a control member, a bar, a seal ring, an end member, a collar and a fastening member. The control member is received in the first room and has a slot located corresponding to the first hole. The end member is connected to the control member and the seal ring is mounted to the end member to seal the communication between the first and second paths. The first spring is biased between body and the control unit. The second spring is biased between the body and the trigger. The first pin extends through the first hole and is movable in the slot of the control member. The two springs share the force applied thereto to have a long service life.

Abstract: Electromagnetic valve, particularly for controlling a fuel injector or for regulating the pressure of a high-pressure fuel accumulator, comprising a casing (2), an electromagnet (24, 25) formed of a yoke (24) and an electromagnetic coil (25) housed in the latter, and an armature (22) in one or more parts. An abutment disk (28) is provided between the transverse face of the armature (22) turned towards the yoke (24) and the transverse face facing the yoke (24), this abutment disk (28) being made of a magnetized or magnetizable material, particularly of a ferromagnetic material.

Abstract: The invention relates to a method for producing a molded body by building up layers of powdered material, comprising the steps of: a) preparing a layer of powdered material, b) heating the layer using controlled radiation by irradiating selected points of the layer according to a cross-sectional pattern of the molded body assigned to said layer according to the geometry description data of the molded body, so that the powdered material is solidified by melting to form connecting regions according to the cross-sectional pattern of the molded body, c) preparing a next layer of powdered material on the layer irradiated most recently and d) heating the most recently prepared layer using controlled radiation by radiating selective points of the layer according to a cross-sectional pattern of the molded body assigned to said layer, so that the powdered material is solidified by melting to form connecting regions according to said cross-sectional pattern of the molded body, and e) repeating steps c) and d) multiple