The invention relates to a device (01, 19, 23) for foaming a viscous material (02), said viscous material (02) being conveyed through a first conveyor pipe (05) using a first conveying means (04) at a first conveying pressure, and a gas (07) being conveyed through a second conveyor pipe (08) at a second conveying pressure, and the second conveyor pipe (08) and the first conveyor pipe (05) becoming conjoined at an opening (15), and a discharge device (17) being provided downstream of the opening (15) so as to allow a pressure-relieving discharge of the mixture (14) made up of viscous material (02) and gas (07), a gas injection valve (09) being arranged at the opening (15), said gas injection valve (09) allowing to inject gas bubbles (25) into the viscous material (02).

A starting-valve throttle device has a housing having a housing recess which is configured therein and in which a switching member is repositionable between an evacuation position and a delivery position. The switching member in the evacuation position configures an evacuation duct which connects an entry duct to an evacuation opening. The switching member in the delivery position configures a passage duct which connects the entry duct to a delivery duct. A throttle member is disposed in the passage duct so as to be repositionable relative to the switching member. On account thereof, a melt flowing through the passage duct is capable of being throttled in a desired manner The starting-valve throttle device is constructed so as to be simple, compact and reliable. The operation of the starting-valve throttle device and an associated screw extruder is simple and energy-efficient.

A dynamic mixer dispense valve and metering apparatus suitable for use in mixing and applying high viscosity, disparate viscosity, high ratio and/or relatively immiscible two part compounds that exhibit short cure times includes a housing supporting a pair of valve assemblies each coupled to respective sources of base and accelerator components. A pair of pneumatic valve actuator s control the operation of the valve assemblies to control the flow of components into a mixing chamber. Within the mixing chamber a mixer impeller is rotatably supported and coupled to a source of rotational power. An additional pneumatic valve actuator combination operates a further flow control to prevent undesired material loss following a shot cycle.

A mixing module includes two inlets, an integrator, and a valve member. The integrator has two chambers each having a near end and a far end, and the valve member is movable between two positions. One of the inlets is connected to the near end of one of the chambers and the other inlet is connected to the near end of the other chamber when the valve is in one position. When the valve is in the other position, one of the inlets is disconnected from the chambers and the near ends of the chambers are connected.

A dosing module (10) for dosing an auxiliary liquid into a flow of a main liquid, comprising: a housing (12) with an inlet port (14) and an outlet port (18) and with a flow duct (16), formed in between, for the main liquid, an auxiliary port (22) which is provided in the housing (12) and which serves for the supply of the auxiliary liquid into the flow duct, a mixing device (20) which is provided in a mixing section (16B) of the flow duct and which serves for mixing the main liquid and the auxiliary liquid, characterized in that the dosing module furthermore comprises: a bypass section (16C) for conducting the flow of main liquid to the outlet port so as to bypass the mixing device, and a directional valve (24, 25; 42; 44, 48; 52) which is designed to connect the outlet port, in a dosing position, to the mixing section and, in a bypass position, to the bypass section.

A mixing module includes two inlets, an integrator, and a valve member. The integrator has two chambers each having a near end and a far end, and the valve member is movable between two positions. One of the inlets is connected to the near end of one of the chambers and the other inlet is connected to the near end of the other chamber when the valve is in one position. When the valve is in the other position, one of the inlets is disconnected from the chambers and the near ends of the chambers are connected.

A system (1) for distributing resin (3), the system (1) including at least one supply of resin (3a,3b), at least one conduit (5a,5b) operatively connectable to a corresponding supply of resin (3a,3b), and at least one pump (7a,7b) operatively connectable to each conduit (5a,5b) for pumping resin (3) from the corresponding supply of resin (3a,3b). The system (1) also includes a driving assembly (9) operatively connectable to each pump (7a,7b) for driving the same, the driving assembly (9) including a transmission assembly (11) being configured specifically depending on the nature of resin (3) to be pumped through each conduit (5a,5b). The system (1) also includes a discharging assembly (13) operatively connectable to each conduit (5a,5b) for discharging resin (3) out from the discharging assembly (13), the discharging assembly (13) being also operatively connectable to the driving assembly (9) for selectively and adjustably controlling operating parameters of each pump (7a,7b). Also described is a resin reservoir bag to be used for with the resin distributing system (1).

Apparatuses for producing and dispensing a reaction mixture include a mixing head for mixing the reaction components that are fed via two supply lines. The apparatuses also include a decompression system to relieve pressure from the supply lines to avoid the reaction components seeping into the mixing head. The decompression system includes two pressure vessels each with two sides, separated by a membrane. One of these sides forms an expansion chamber for the reaction component while the other side is connected to a pneumatic system. With this pneumatic system, the expansion chamber can be pressurized before the production of the reaction mixture is started. After the production of the reaction mixture, the pressure can be relieved.

A method is disclosed for preparing and dispensing a mixture obtained by mixing at least one first chemically reactive component and at least one second chemically reactive component containing a dispersed solid material by a high pressure mixing device comprising a mixing chamber for mixing the components, in which a valve member is slidable, in particular a slide-valve, provided with longitudinal slots for recirculating the components to respective storage tanks. The method provides removing from at least one tank, a dosed quantity of the at least second chemically reactive second component to with filler material is added; recirculating the second component through the slots of the slide-valve for a period of time that is comparatively very reduced with respect to a recirculating step of the at least first component through the slide-valve. An apparatus for preparing and dispensing the mixture is also disclosed.

Methods and mechanisms for mixing and dispensing multipart materials is provided. The methods and mechanisms may be used for mix on demand operations as well as for encapsulation of electronic components. The methods and mechanisms may incorporate a mixer assembly from which material is substantially directly dispensed. The methods and mechanisms may incorporate mix on demand where first and second material supply sources include pumping arrangements for pumping first and second materials through a mixing arrangement. The pumping forces provided by the pumping arrangements also provide the force to dispense the mixed material where it will ultimately be formed, such as a potting location or a mold.