Abstract: A multi-cartridge powered dispenser includes a frame having base and top cartridge supports, wheels and a handle. A piston/cylinder is mounted on the frame and at least three cartridges are clamped between the support plates. Each cartridge has a shuttle at the lower end and a discharge opening at the upper end. The piston/cylinder assembly has push rods extending through the base support to move the shuttles in the cartridges. A pressurized fluid supply conduit is connected to the piston/cylinder, and a valve in the fluid supply conduit controls the flow. Discharge cannulae communicate with the outlets the cartridges. Discharge conduits extend between the cannulae and a handpiece for applying the contents of the cartridges to a work surface. The application handpiece can be a sprayer, a roller applicator, or a pour/extrude applicator.

Abstract: A dispenser includes a container providing a cavity and a discharge opening at one end. A piston in the cavity has a peripheral wall portion sealing against the inner wall of the container and a centrally disposed passage therethrough. A sealing plug of resiliently deformable material is seated in the passage and has a peripheral flange about the front end adjacent the discharge opening. The flange bears upon the surface of the front wall of the piston about the passage to effect a seal therebetween. A filler push rod bears upon the surface of the sealing plug is movable to move the flange of the plug away from the surface of the piston to allow air to vent through the passage about the periphery of the plug.

Abstract: A disposable synthetic resin spray nozzle assembly for spraying reactive multi-component liquid mixtures includes a static mixer and an air or gas manifold. The static mixer has an elongated mixing tube containing a mixing element, and a liquid dispensing nozzle is formed at the downstream end of the mixing tube. A one-piece manifold has an inner wall which includes a mixer support section sealingly mounted around the static mixer, an air inlet section for receiving an air supply through a conduit, and an air dispensing section which, together with the outer wall of the liquid dispensing nozzle, forms an air dispensing nozzle. The reactive liquid mixture is atomized by air that supplied through the air dispensing nozzle.