Patent ID: 7153020

Claim:
A mixer wagon comprising: a mixing chamber having a bottom, a fill opening larger than the bottom, and a wall; a work tool in the mixing chamber for sweeping over a work area (A) on the bottom; the wall having a flattening at its side having a curved portion and the flattening having a discharge opening; a slide for closing the flattening discharge opening that is movable by an actuating means in an opening and closing path (P) wherein: the flattening encloses the mixing chamber bottom with a first inclination angle that is smaller than a second larger inclination angle enclosed by the curved portion with the bottom, and in the vicinity of the mixing chamber bottom, the slide and the curved portion of the wall of the flattening discharge opening follow the shape of the circumference of the work area, and the opening and closing path (P) extends at an angle that is substantially equal to or larger than the larger inclination angle.