The invention relates to a dosing device that comprises a medium reservoir (S) and a pump device for dosing and dispensing a medium stored in said medium reservoir. The pump device is associated with a pump chamber, and with at least one inlet and one outlet valve. According to the invention, the inlet...http://www.google.es/patents/US7182226?utm_source=gb-gplus-sharePatente US7182226 - Dosing device comprising a medium reservoir and corresponding pump device
Dosing device comprising a medium reservoir and corresponding pump device
