PUMP BATCHERS Russian patent published in 2015 - IPC B05B11/00 G01F11/00 

FIELD: engines and pumps.

SUBSTANCE: invention relates to pump batchers, especially of an air-free type, in which an internal part of a container reduces its volume gradually as the product is being distributed to avoid contact of air to the product for example a medicine for oral batching. In order to catch such air and restrict it from reaching an input opening when the batcher is used under the bottom of a batching module around the input opening a provision is made for air catching element (5) having a bowl-like shape that is convex in a downward direction for direction of any such air from the input opening to periphery. At the periphery a steeply inclined peripheral part forms restraining edge (53) which can perform an elastic sliding contact to the internal surface of the container wall, thus directing air by an assembly of the batcher. Central tubular part (52) of catching element (5) separates the caught air from the input opening and can be used for insertion of the catching element into the input opening. Sliding tracking piston (15) can have an upward directed central convexity (152) having the shape for insertion into tubular formation (52) of catching element (5) to maximise displacement of the product.

EFFECT: prevention of the fact that air in a container space above the product can reach an input opening of the pump, which leads to possible reduction of a dose being batched without any notification to a user about it.

12 cl, 9 dwg