Patent ID: 6974247

Claim:
A device for storing, mixing, and/or injecting cements, the device comprising: a tube having a longitudinal axis, a front end with an outlet opening, a rear end; and an internal cylindrical cavity including a first end with a front wall and a second end; a locking mechanism detachably connected to the front end of the tube so that the outlet opening can be sealed; a lid detachably connected to the rear end of the tube; the lid having a borehole extending therethrough; a mixer having a mixing shaft sized and configured to extend through the borehole formed in the lid and a mixing tool at an end thereof, the mixing tool having a front face surface, the mixer being axially and rotationally moveable inside of the cavity; driving means connected to the mixer shaft so that the mixer can be axially and rotationally moved with respect to the tube; and first restraining means for limiting the axial movement of the mixer with respect to the tube so that a minimum distance A remains between the front face surface of the mixing tool and the front wall of the cavity; wherein the first restraining means comprises a first axial stop which is mounted on the driving means and which limits the axial displacement of the mixer with respect to the tube in the direction of the front end of the tube; wherein the cylindrical cavity has a diameter D and the mixing tool has a maximum dimension X such that X is less than D.