Patent ID: 7399346
Filing Date: 2008-07-15
Classification: B01D,G01N

Abstract:
1. A quick-change filter system comprising: at least one base and at least one quick-change filter, which base is provided with an inlet connecting element and an outlet connecting element for connecting the base to a fluid pipe system, wherein the base is provided with a filter coupling part provided with a gas inlet stub for connection to an inlet of the quick-change filter and with a gas outlet stub for connection to an outlet of the quick-change filter, wherein the quick-change filter is provided with a filter housing, which is at least partly filled with filter material and to which the inlet and the outlet are connected, and with a quick-change coupling arranged for cooperation with the filter coupling part of the base, wherein the quick-change coupling contains the inlet and the outlet of the quick-change filter, wherein the base is provided with means for manually connecting the quick-change filter to the base, and is provided with sealing means for automatic, gastight sealing of the gas outlet stub and the gas inlet stub when decoupling the quick-change filter from the base, wherein the flow resistance of the gas inlet stub is larger than the flow resistance of the gas outlet stub, such that backflow of gas in the filter housing is prevented, and wherein the quick-change filter system further includes a transponder incorporated in the quick-change filter.