Patent ID: 6217754
Filing Date: 2001-04-17
Classification: B01D,B01F,C02F

Abstract:
A swimming pool filter, comprisinga casing having an opening;a filter cartridge arranged in said casing, said filter cartridge having an axial hollow core;a top cover having means for securing said top cover to said casing in order to cover the opening of said casing and an opening substantially corresponding to the axial hollow core of said filter cartridge;a plug structured and arranged to fit within the opening of said top cover; wherein said plug is substantially cylindrical and comprises at least one lug on the periphery of said plug; andan accessory element arranged in said plug to complement the functions of the filter, said accessory element being structured and arranged to fit at least partially within the axial hollow core of the filter cartridge when said plug is fitted within the opening of said top cover;said top cover having an internal neck for receiving said plug in a bayonet attachment, said internal neck including at least one anchoring element structured and arranged to engage with each of said at least one lug, said at least one anchoring element comprising a first incline having a surface along which said at least one lug is slidable, a second incline having a surface along which said at least one lug is slidable, and a lower recess coupling said first incline to said second incline structured and arranged to hold said at least one lug thereby securing said plug within said top cover.