A portable spray can for resin paints incorporates a partition means dividing the interior into first and second chambers for containing catalyst and resin materials respectively. A spray means is threadedly received on one end of the can and includes an elongated rigid tube extending into one of the chambers. The arrangement is such that complete threading of the spray means onto the can urges the tube further into the one chamber to engage the partition means and punch out a portion of this partition means thereby placing the interior chambers in communication with each other. Mixing of the ingredients in the chambers can thus take place prior to a spraying operation, the mixture passing up through the tube and out the spray means when the spray valve is opened.
Container for one-time use for mixing and ejecting two components contained therewithin features a membrane that is situated inside the container and divides it into two chambers in which the components separately reside. The container is in the form of a pressurized package with outlet valve in which the membrane inside the container is sealed tightly to the same and is designed such that the introduction of a pressure difference in the chambers creates a force that opens the membrane.
A dispenser for paste-like substances is disclosed having a piston which is slidably disposed in a dispenser housing. The piston moves as the dispenser is being emptied toward a dispensing opening while being restrained from movement in the opposite direction. A press button is connected with a rod that extends through the piston and is coupled nonpositively with the piston through the intermediary of a locking device permitting the rod to move freely in one direction, but to carry the piston in the opposite direction. A membrane seals the end of the housing opposite the discharge opening. The piston rod is designed as a piercing tool for piercing the membrane.
A device for spraying or dispensing a fluid and adapted to be mounted on a fluid tank 30 includes a body 1, an actuator member 3 slidably mounted relative to the body, an inlet passage 14 communicating with the tank and enabling the fluid to enter into the body, and an elongate member 5, 25 slidably mounted in the inlet passage and penetrating into the tank. The elongate member is displaceable together with the actuator member towards the tank on the first occasion that the actuator member is actuated, and the elongate member exerts mechanical action on an element 33, 42 secured to the tank when it is displaced, and in such a manner as to puncture or dislodge the element.
A pressurized can for the expulsion of building foams such as single-component polyurethane foams, the body of which is a cylinder, with a preferably pushed-in bottom. The body also includes a dome-like top section with a valve which expels the can contents consisting of a product component and a propellant. A floating plunger mounted on the interior wall of the cylinder separates the propellant gas chamber from the product component. The floating plunger has a cavity in its upper side, in which a component reactive with the product component is sealed off from the product component by a seal. A trigger device is placed in the dome-like top section to open the seal when the plunger reaches a position immediately below the dome-like top section.
