A syringe for multi-component materials includes a mixer housing, a mixing element, a multi-component cartridge and a mixing head, the mixing head being arranged at least partly within the mixer housing and adjacent to the multi-component cartridge. The mixing head is arranged moveable in an axial direction of the syringe between at least two positions, the at least two positions including a sealed position and a dispensing position. The axial movement of the mixing head is brought about by rotation of at least a part of the mixer housing relative to the multi-component cartridge. The mixing head is axially displaced in a direction opposite to a dispensing direction on a displacement of the mixing head from the sealed position into the dispensing position.

An adhesive-air infuser comprises a hollow body through which adhesive and air flow. The air is directed into the hollow body at an upstream end of the hollow body through an air nozzle positioned within the hollow body, and the adhesive is directed into the hollow body at the upstream end of the hollow body such that the adhesive flows around at least a portion of the air nozzle as the adhesive flows through the hollow body. The adhesive and air are directed by adhesive supply pressure and air supply pressure to flow through the hollow body toward an output port. In various embodiments, adhesive and air flow along a tortuous path that causes the air to mix into the adhesive to form an adhesive-air solution having a density less than the adhesive supplied to the upstream end of the hollow body.

An adhesive-air infuser comprises a hollow body through which adhesive and air flow. The air is directed into the hollow body at an upstream end of the hollow body through an air nozzle positioned within the hollow body, and the adhesive is directed into the hollow body at the upstream end of the hollow body such that the adhesive flows around at least a portion of the air nozzle as the adhesive flows through the hollow body. The adhesive and air are directed by adhesive supply pressure and air supply pressure to flow through the hollow body toward an output port. In various embodiments, adhesive and air flow along a tortuous path that causes the air to mix into the adhesive to form an adhesive-air solution having a density less than the adhesive supplied to the upstream end of the hollow body.

In a method for mixing two liquid components of a medium with the aid of a static mixer, the two components are supplied to the static mixer, are mixed therein and are subsequently dispensed from the mixer. In this respect, only one respective component is supplied to the mixer, while the other component is not supplied to the mixer.

The present invention relates to articles comprising a plurality of molded hollow parts (11) having different central axis (14, 15) through the hollow elements, further having passages in walls of the hollow parts transverse to the central axis of the hollow parts. The present invention also relates to methods applying two part curable materials to substrates using the molded parts of the invention as mixing elements.

A storage and mixing device includes a mixing compartment, two pistons that each extend from the mixing compartment and end in a displacement section, each piston defining a passageway having a first opening communicating with the mixing compartment and a second opening communicating with an inlet at the displacement section, and a housing having two piston guides and a cartridge compartment connected to the piston guide, each piston guide slidably receiving one of the pistons, and each cartridge compartment receiving a removable cartridge that includes a cavity for containing separate substances and an opening sealed by a cartridge seal. The displacement section of each piston includes a piercing member for piercing the cartridge seal of the cartridge arranged in the corresponding cartridge compartment, such that the displacement section enters the cartridge cavity and displaces the contained substance into the mixing compartment via the inlet and the passageway.

An adhesive-air infuser comprises a hollow body through which adhesive and air flow. The air is directed into the hollow body at an upstream end of the hollow body through an air nozzle positioned within the hollow body, and the adhesive is directed into the hollow body at the upstream end of the hollow body such that the adhesive flows around at least a portion of the air nozzle as the adhesive flows through the hollow body. The adhesive and air are directed by adhesive supply pressure and air supply pressure to flow through the hollow body toward an output port. In various embodiments, adhesive and air flow along a tortuous path that causes the air to mix into the adhesive to form an adhesive-air solution having a density less than the adhesive supplied to the upstream end of the hollow body.

A method monitors a device for applying an at least two-component viscous material to workpieces, including a metering unit having a number of metering valves corresponding with the number of viscous material components, and a static mixer detachably secured to the metering unit for component blending. The static mixer has a material inlet facing the metering unit and a material outlet facing away from the metering unit. Each metering valve has a supply channel sealingly connectable to a valve seat for supplying the respective component to the static mixer. A number of material applications are carried out consecutively, each having an identical predetermined time between start and end of the application. During the applications, between the start and the end, at predetermined times, the pressure in at least one supply channel is measured by a pressure sensor and preferably measured in all supply channels by a respective pressure sensor.

A dynamic mixer (40) comprising a rotatable structure (10, 111, 11, 1, 2, 3, 4, 5) having a cylindrical base (14) having a connector disposed at one end, an opposing thinned end, flights of 3 to 6 blades (11, 12, 151, 61), separated by a notches (13, 18) the blades (11, 12, 151, 61) have an inlet face facing the connector end, an outlet (30) face facing the thinned end, a leading edge (21) facing the direction of rotation, a trailing edge (20) opposite the leading edge (21), a standard leading face (154, 65) which tapers from the leading edge (21) to the outlet (30) face and a standard trailing face (166) which tapers from the trailing edge (20) to the inlet face, or a reverse leading face (154, 65) which tapers from the leading edge (21) to the inlet face and a reverse trailing face (155, 66) which tapers from the trailing edge (20) to the outlet (30) face, the notches (13, 18) are offset from one another and the article is adapted for use in a dynamic mixer (40) to mix viscous material when rotated in the mixer (40). An article comprising the mixer (40), a shell (25, 28, 29, 31) about the mixer (40) and an endplate (33) that defines material inlets and seals the inlet end (15, 27) of the mixer (40).

Apparatus that mixes non-homogenous fluid. A threaded shaft within a housing circulates fluid within a container to effect mixing. In one embodiment, when placed in a container of fluid, the housing the fluid is recirculated through opposing ends of the housing. In an embodiment of a related method for mixing, a pump housing containing a screw journaled for rotation receives fluid within a container and conveys the fluid therethrough to circulate a fluid portion in the container along an exterior surface of the housing for mixing with another fluid portion to improve fluid homogeneity. After mixing, the portion of the fluid which first circulates through the housing may recirculate through the housing with said another portion of the fluid. The fluid may be continuously mixed and recirculated through the housing.