Patent ID: 11969743
Assignee: nan
Field: Chemical engineering (Chemistry)
Classification: CPC B | IPC B

Claim 15:
16. Method for the manufacture of a dispenser system for a pumpable product, the dispenser system comprising a rigid or pliable product container and a dispensing device with a pump apparatus, wherein the pump apparatus comprises at least one first valve group for conveying the product out of the product container, as well as a second valve group for feeding air into the product container, wherein the second valve group defines a feed duct in which at least one filter unit for filtering sterile air is arranged, so that a positive pressure of sterile air is settable in the product container, wherein the pump apparatus is designed as a manually operable double-pump apparatus and comprises a double-piston system for simultaneous conveying of the product and introduction of the sterile air, comprising:
S1: providing raw material under cover of sterile air;
S2: processing the raw material to create product under the cover of sterile air;
S3: storing the product under the cover of sterile air;
S4: filling the product into the dispenser system under the cover of sterile air.