Improved apparatus and method for installing a filter sleeve in filtration apparatus is provided. In its basic form, the present invention uses a filter sleeve with a pre-installed end cap bonded to at least one of its ends. Through use of a bonding process such as sonic welding, the end cap and filter...http://www.google.fr/patents/US5456834?utm_source=gb-gplus-shareBrevet US5456834 - Device for mounting a filter sleeve to a filter apparatus
Device for mounting a filter sleeve to a filter apparatus