Patent ID: 8430275
Filing Date: 2013-04-30
Classification: B05B,B65D

Abstract:
1. A device for dispensing and intaking a liquid or semi-liquid product with a dosage chamber of a pump body, said device comprising a piston which is mounted fixed in the pump body, said piston comprising one end inserted in a watertight manner in said dosage chamber, the end of the piston being covered with a membrane forming an intake valve allowing the introduction of the product in the dosage chamber and comprising at least one sealing peripheral lip in sliding contact with an inner wall of the dosage chamber; wherein said device further comprises a projecting element forming a valve seat on the end of the piston; and wherein said device comprises a connection element wholly within the pump body for connecting said piston to said pump body, wherein said connection element is an independent part from said membrane and said pump body and is connected to a bottom part of said pump body by connecting to conduit, said conduit extending up from and connected to the bottom part of said pump body.