Patent ID: 7748971

Claim:
An apparatus for dispensing particulate matter in a layer, on to a surface to be coated, comprising: a coater carrier that stretches over the full width of the surface to be coated and adapted to move across the length of the surface in a direction in which the particulate matter is built up; a blade assembly rotatably attached to the coater carrier at an axis point, the blade assembly including: a holder portion and a removable shaped blade portion with an outside blade edge, a metering device with an outside wall for carrying and dispensing, via an opening, the particulate fluids, the metering device connectively disposed in front of the blade assembly such that the outside wall maintains a gap as small as possible over a preceding layer, a cam mechanism connectively disposed to the coater carrier and rotatably connected to the holder portion, the cam mechanism adapted to impart a vertical and a horizontal oscillatory vibration with an amplitude of at least 0.85 mm at the outside blade edge or an oscillatory angular rotational of 0.1 to 5 degrees about the axis point of the blade assembly along the direction in which the particulate matter is built up.