A universal water filter for filtering water poured into an opening of the container. The water filter includes a filter unit and a support structure. The filter unit includes a housing having an inlet surface for receiving unfiltered water, an outlet surface for dispensing filtered water and a side...http://www.google.es/patents/US5652008?utm_source=gb-gplus-sharePatente US5652008 - Universal water filtration device and method of filtering water
Universal water filtration device and method of filtering water