Pumping system i.e. toothbrush filler, for filling toothbrush with paste, has piston and connecting channel arranged such that displacement of piston is allowed only in direction of outlet opening of storage chamber storing paste

摘要

The system has a storage chamber (5) for storing paste, where walls of the storage chamber are partially elastic for compression of volume of the storage chamber. A connecting channel (6) is connected with an outlet opening of the storage chamber, and a piston (8) is provided in the storage chamber for displacement of the paste toward the outlet opening. The piston and the connecting channel are arranged such that displacement of the piston is allowed only in the direction of the outlet opening of the storage chamber.