An apparatus for applying a viscous material, comprising a bell having a circumferential mounting rim, and a feed line, wherein the material is conveyable via a conveying element through the feed line into the bell, wherein the bell can be transported with the mounting rim, in a direction of mounting, over a protruding element, in particular a rivet head, of a component, in order to encase the element with the material, wherein in the region of the bell or the feed line a metering member is provided, wherein in the course of an application process a flow of the material can be influenced by the metering member.

A method for fabricating a membrane electrode assembly including providing at least one carrier frame having at least one recess; continuous conveying of the carrier frame along a conveying path; applying an adhesive coating to the carrier frame while the carrier frame is conveyed along the conveying path, wherein the adhesive coating applied to the carrier frame at least partially surrounds the recess and wherein the adhesive coating is applied to the carrier frame by an uninterrupted delivery of adhesive from an applicator nozzle of an application device, wherein the applicator nozzle has a passage surface whose geometry is changed during the uninterrupted delivery of the adhesive; and placing a membrane and/or an electrode on the adhesive application.

One general aspect includes a liquid dispenser with a mount having a mount aperture. A liquid flow path assembly is removably secured to the mount and has an inlet configured to receive liquid, an outlet configured to dispense liquid and a passageway fluidly coupling the inlet to the outlet. A third aperture apart from the inlet and the outlet is fluidly coupled to the passageway and forming a valve guide. The liquid flow path assembly is disposed on the mount to align the third aperture with the mount aperture. An elongated valve has a valve stem guided by the valve guide and extends through the third aperture and the mount aperture. A latch assembly secures the liquid flow path assembly to the mount.

A valve type nozzle controls discharge of liquid by opening and closing an discharge port by a valve element, the discharge port being configured to discharge the liquid, and the valve element being formed movably by applying a predetermined voltage to a piezoelectric element, whereby when the predetermined voltage is applied to the piezoelectric element, the valve element moves in a direction where the moving mechanism opens the discharge port when the piezoelectric element extends. This allows the liquid to be discharged. Further, when the application of the voltage to the piezoelectric element is released, the moving mechanism returns to an original shape, by which the valve element closes the discharge port is closed to prevent the discharge of the liquid.

An apparatus for wetting one or more absorbent strips with a solution can comprise a solution tray and a dispenser tray, each comprising a base that defines opposing upper and lower surfaces and one or more openings and a sidewall extending away from the upper surface and disposed along a periphery of the base. One or more dispensers can each include a tube extending between first and second ends, the first end being coupled to the dispenser tray's base such that the tube is configured to receive solution from a respective one of the opening(s) of the dispenser tray. An applicator tray can be configured to receive the strip(s). The solution, dispenser, and applicator trays are positionable to permit solution to flow through the solution tray's opening(s) onto the dispenser tray's base, through the dispenser tray's opening(s) into the dispenser(s), and through the dispenser(s) onto the applicator tray.

The disclosure concerns an applicator for applying a coating agent (e.g. thick matter) to a component (e.g. motor vehicle body part) with a nozzle with a nozzle opening with a certain nozzle geometry, in particular for applying a thick matter bead to a component surface. The disclosure provides that the nozzle geometry of the nozzle opening can be adjusted without replacing the nozzle, in particular by a relative movement of two nozzle parts. Furthermore, the disclosure comprises an exchange part for such an applicator and an operating method therefor.

A dispense valve assembly for selectively providing fluid to a nozzle from a cartridge of a dispensing apparatus is disclosed. The dispense valve assembly includes a dispense valve including a valve rod and a dispense valve actuator for actuating the valve rod, as well as a component assembly that includes a valve housing and a nozzle adapter. The valve housing defines a proximal end for releasably attaching to the dispense valve, a distal end opposite the proximal end, and an angled extension defining an inlet. The dispense valve assembly also includes a nozzle adapter defining a proximal end for attaching to the distal end of the valve housing and a distal end opposite the proximal end. The dispense valve assembly also includes a nozzle releasably attached to the distal end of the nozzle adapter. The valve housing can be disposed after a single use.

A valve type nozzle controls discharge of a liquid by opening and closing a discharge port by a valve element. The discharge port discharges the liquid, and the valve element moves by applying a predetermined voltage to a piezoelectric element. When the predetermined voltage is applied to the piezoelectric element, the piezoelectric element extends and the valve element moves in a direction where the moving mechanism opens the discharge port. This allows the liquid to be discharged. Further, when the application of the voltage to the piezoelectric element is released, the moving mechanism returns to an original shape by which the valve element closes the discharge port to prevent the discharge of the liquid.

A system for finishing surfaces with a finishing material includes a handle assembly with proximal and distal ends. A material reservoir is mounted on the handle distal and includes an inlet and an outlet. A material applicator tool is mounted on the reservoir and receives material from the reservoir outlet. A discharge mechanism includes an extendable-retractable component or linear actuator connected to the reservoir for discharging or reloading material. Multiple embodiments utilizing different linear actuators are disclosed. An alternative embodiment includes a push-to-open valve mechanism. Additional embodiments include an adjustment mechanism on the push-to-open valve mechanism accommodating adjustment of flow of finishing compound when the push-to-open valve is engaged.

One general aspect includes a liquid dispenser with a mount having a mount aperture. A liquid flow path assembly is removably secured to the mount and has an inlet configured to receive liquid, an outlet configured to dispense liquid and a passageway fluidly coupling the inlet to the outlet. A third aperture apart from the inlet and the outlet is fluidly coupled to the passageway and forming a valve guide. The liquid flow path assembly is disposed on the mount to align the third aperture with the mount aperture. An elongated valve has a valve stem guided by the valve guide and extends through the third aperture and the mount aperture. A latch assembly secures the liquid flow path assembly to the mount.