Patent ID: 11944924
Assignee: KX TECHNOLOGIES LLC
Field: Chemical engineering (Chemistry)
Classification: CPC B | IPC B

Claim 3:
4. A filtration system comprising:
a filter manifold having ingress and egress fluid ports, and an aperture for receiving a filter cartridge, said filter manifold including a movable blocking mechanism having a first magnetic structure therein or secured thereto, said blocking mechanism movably responsive in a first direction to a magnetic field shear force generated when a complementary second magnetic structure is moved in a second direction approximately perpendicular to said first direction and positioned in close proximity to said first magnetic structure;
said filter cartridge including:
a housing or sump having a top surface, an axial or longitudinal length, and an internal cavity;
an ingress port and an egress port in fluid communication with said internal cavity and said manifold ingress and egress fluid ports when said filter cartridge is connected to said manifold; and
an annular collar circumferentially located about said housing top surface, and having a top rim, an inside wall, and an outside wall, said annular collar including securing lugs or threads extending from said annular collar and a tab extending from the top rim in an axial direction;
said tab including the complementary second magnetic structure and having a radially outwardly facing surface that extends no further than said annular collar outside wall or at least no further than a radial extension of said securing lugs or threads;

wherein said second magnetic structure includes a magnet having N multiple magnetic field emission sources, where N>1, having positions and polarities relating to a predefined spatial force function that corresponds to a predetermined alignment of said magnetic field emission sources;
wherein, upon attachment of said filter cartridge to said filter manifold, said first and second magnetic structures are brought together in said first direction within close proximity to one another such that said magnetic shear force is generated, which moves said blocking mechanism in said first direction, allow said securing lugs or threads to continue moving in said second direction to complete attachment of said filter cartridge to said filter manifold.