Patent ID: 9345801
Filing Date: 2016-05-24
CPC Classification: A61L,B01D,B29C,Y02P

Claim Text:
1. A method of cleaning and/or sterilizing gas in blow moulding machine having a blowing station, said blow moulding machine comprising a compressed gas supply system for shaping plastics material pre-forms to form plastics material containers, wherein compressed gas supplied via an annular-shaped distribution duct from a plurality of separate gas reservoirs at the same or different gas pressures is conveyed through at least one gas-processing device which sterilizes the compressed gas using a sterile filter having a pore size of less than 50 μm and optionally reduces residual quantities of oxidative disinfecting/sterilizing agent in the compressed gas by reaction with a catalyst, wherein the sterile filter is arranged in a line system of the blow moulding machine and is cleaned by the oxidative disinfecting/sterilizing agent which is also used for the disinfection/sterilization of the plastics material pre-forms and/or the plastics material containers, wherein the compressed gas is introduced first through the sterile filter, then through the annular-shaped distribution duct and then to the blowing station, and, employing said compressed gas to blow plastics material pre-forms to plastics material containers, and wherein the sterile filter is a central sterile filter and is situated in a position downstream of a feed of the oxidative disinfecting/sterilizing agent but upstream of the annular-shaped distribution duct.