A driving device of a metering and mixing apparatus for multi-component substances is disclosed, which driving device can have at least two cartridge holders for holding interchangeable cartridges with individual substance components, a discharging apparatus for simultaneously discharging the substance components from the cartridges through component outlets with the aid of discharging pistons entering the cartridge holder or cartridges, and a mixing apparatus which is connected to the component outlets, for mixing the discharged substance components and discharging the latter in mixed form, and a transmission unit for the connection of a drive motor, wherein the transmission unit can have a detector for detecting at least one counter pressure which builds up during the discharging of at least one of the substance components, and a controller, which is connected on an inlet side to the detector for bringing about a driving control function in response to a detection result.

The present invention relates to a caulking gun for dispensing viscous material comprising a stock a cartridge keep a push rod longitudinally moveably mounted in the stock provided at its one end with a plunger which engages the piston of a cartridge placed in the cartridge keep, means for engaging the push rod to advance it, brake means hinged to the stock and provided with a clearance hole for engaging the push rod such that the push rod is moveable in a direction advancing the push rod towards the cartridge and is held in a direction retreating the push rod from the cartridge, which brake means are arranged to travel to a first position relative to the stock as the push rod advances and to a second position as the push rod retreats thereby defining the retreat of the push rod, the brake means being inclined relative to the axis of the push rod and adjusting means for varying the retreat of the push rod.

In order to provide an adjustable caulking gun with at least two different levels of retreat of the push rod giving the user easily a visual feedback of the chosen retreat of the push rod, it is proposed according to the present invention that the adjusting means are configured as a rotatable wheel with a slope, the rotatable wheel being positioned on the axis of the push rod between the stock and the brake means, the distance between the highest point of the slope and the brake means defining the retreat of the push rod.

This rotatable wheel allows the user to select the level of retreat of the push rod by turning the wheel between a first position with no retreat of the push rod and a second position with a maximum retreat of the push rod resulting in a anti-drip behaviour of the caulking gun.

A dispensing container apparatus having a tubular container with a bottom end and a rotatable annular upper end connected to a tubular shaft, and a compression member associated with the tubular shaft which causes a material disposed within the containment region to communicate into the tubular shaft or into a containing area upon rotation of the rotatable annular upper end. A brush applicator removably fits into an open end of the tubular shaft for receiving paste to be dispensed via brush application. Also, the container apparatus includes a top member having paste-access holes sized and adapted to closely receive different threaded shaft sizes of fasteners. In one form, the top member is partially rotatable for closing the holes, and then further rotatable for moving the piston (and hence paste) within the container.

Methods, apparatus, devices and systems for mixing and dispensing multi-component materials. The mixing and dispensing may be performed using a mobile, enclosed dispenser that can be used to supply a mixed multi-component material at the point of use. In some embodiments, the components to be mixed into the multi-component material may be supplied in cartridges.