Filter interconnects utilizing magnetic shear force generated by coded polymagnets

Patent metadata

Field	Value
Publication number	US-11326379-B2
Application number	US-202017005932-A
Country	US
Kind code	B2
Filing date	Aug 28, 2020
Priority date	Aug 28, 2019
Publication date	May 10, 2022
Grant date	May 10, 2022

Abstract

A filtration system interconnection structure having a filter manifold and a filter cartridge in magnetic communication with one another, such that a latching mechanism and latch blocking structure in the manifold secures the filter cartridge with a manifold sump when the filter cartridge is inserted within the manifold sump. The magnetic communication is formed between two complementary coded magnets capable of producing a magnetic shear force when in close proximity to one another. The magnetic shear force removes the latching blocking structure from interfering with the latch, allowing the latch to secure the filter cartridge. Movement of the latching blocking structure coded magnet relative to the filter cartridge coded magnet may be perpendicular or parallel with respect to each other. The filter magnet polarity transitions are aligned with the manifold magnet polarity transitions such that a shear force is generated between the magnets when the filter cartridge is inserted within the manifold sump housing, allowing for actuation of the latch blocking mechanism against a biasing force, and allowing the latch to move radially inwards against a separate biasing force.

First claim

Thus, having described the invention, what is claimed is:

1. A filter cartridge, comprising:
a housing having a body, a top surface, an axial length, and an internal cavity;
an ingress port and an egress port in fluid communication with said internal cavity;
an annular collar circumferentially located about said housing top surface and having an outer wall, said annular collar including:
securing lugs or threads extending radially outwards from said annular collar outer wall; and
a magnetic structure located on or within said annular collar and having a radially outwardly-facing surface that extends no further than an outward most radial extension of said securing lugs or threads;
wherein said magnetic structure includes a magnet having a plurality of field emission sources having positions and polarities relating to a predefined spatial force function that corresponds to a predetermined alignment of said field emission sources.

2. The filter cartridge of claim 1 wherein said first magnetic structure is provided within a tab extending in an axial direction from said annular collar.

3. A filter manifold for receiving a mating filter cartridge, comprising:
ingress and egress fluid ports;
a sump having an inner cavity for receiving said mating filter cartridge;
an upwardly-extending alignment channel proximate said sump inner cavity; and
a resiliently biased blocking mechanism at least partially extending within said alignment channel when in a biased position and comprising a first magnetic structure disposed therein, said first magnetic structure including a magnet having a plurality of field emission sources having positions and polarities relating to a predefined spatial force function that corresponds to a predetermined alignment of said field emission sources,
wherein said blocking mechanism is movable in a first direction to a retracted position in response to a magnetic shear force, said magnetic shear force being generated when a complementary or paired second magnetic structure of said mating filter cartridge is moved in a second direction approximately perpendicular to said first direction and positioned in close proximity to said first magnetic structure.

4. A filtration system comprising:
a filter manifold having ingress and egress fluid ports, a sump having an inner cavity for receiving a mating filter cartridge, an upwardly-extending alignment channel proximate said sump inner cavity, and a resiliently biased blocking mechanism at least partially extending within said alignment channel when in a biased position and comprising a first magnetic structure disposed therein, said blocking mechanism movable in a first direction to a retracted position in response to a magnetic shear force, said magnetic shear force being generated when a complementary or paired 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; and
said mating filter cartridge including:
a housing having a body, a top surface, an axial length, and an internal cavity;
an ingress port and an egress port in fluid communication with said internal cavity;
an annular collar circumferentially located about said housing top surface and having an outer wall, said annular collar including:
securing lugs or threads extending radially outwards from said annular collar outer wall; and
said second magnetic structure located on or within said annular collar and having a radially outwardly-facing surface that extends no further than said annular collar outside wall or at least no further than an outward most radial extension of said securing lugs or threads;
wherein, upon attachment of said filter cartridge to said filter manifold, said first and second magnetic structures are brought together in said second direction within close proximity to one another such that said magnetic shear force is generated, said magnetic shear force causing said blocking mechanism to move in said first direction and allowing said securing lugs or threads to continue moving in said second direction to complete attachment of said filter cartridge to said filter manifold.

5. The filtration system of claim 4 , wherein said first and second magnetic structures each includes a magnet having a plurality of magnetic field emission sources having positions and polarities relating to a predefined spatial force function that corresponds to a predetermined alignment of said magnetic field emission sources.

6. The filtration system of claim 4 , wherein said filter cartridge is rotatably received by said filter manifold.

7. A method of interconnecting a filter cartridge and a mating filter manifold, comprising:
inserting said filter cartridge into a sump of said mating filter manifold, said filter cartridge comprising a housing having a body with a top surface, and an annular collar circumferentially located about said housing body top surface and having an outer wall, said annular collar including securing lugs or threads extending radially outwards from said annular collar outer wall, and a first magnetic structure located on or within said annular collar and having a radially outwardly-facing surface that extends no further than an outward most radial extension of said securing lugs or threads, wherein said first magnetic structure includes a magnet having a plurality of field emission sources having positions and polarities relating to a predefined spatial force function that corresponds to a predetermined alignment of said field emission sources;
aligning said securing lugs or threads with an alignment channel of said filter manifold;
rotating said filter cartridge within said filter manifold sump in a first direction;
aligning said first magnetic structure plurality of magnetic field emission sources with a plurality of magnetic field emission sources of a complementary or paired second magnetic structure disposed within a resiliently biased blocking mechanism at least partially extending within said alignment channel of said filter manifold, such that a magnetic shear force is generated;
displacing said blocking mechanism to a retracted position in a second direction in response to said magnetic shear force, said second direction approximately perpendicular to said first direction; and
rotating said filter cartridge in said first direction such that said securing lugs or threads pass below said displaced blocking mechanism to complete attachment of said filter cartridge to said filter manifold.

8. A filter cartridge comprising:
a cylindrical housing having an internal cavity, a top surface and a central axis;
an axially centered stem extending from said top surface and having an ingress and egress port in fluid communication with said internal cavity;
attachment lugs positioned on and extending from said top surface;
a magnetic structure located on or in close proximity to said top surface, wherein said magnetic structure includes a magnet having a plurality of field emission sources having positions and polarities relating to a predefined spatial force function that corresponds to a predetermined alignment of said field emission sources.

9. The filter cartridge of claim 8 wherein said magnetic structure is radially located a predetermined distance from said housing central axis.

10. The filter cartridge of claim 8 wherein said attachment lugs are diametrically opposed on said top surface.

11. A filter manifold for receiving a mating filter cartridge, said filter manifold comprising:
a cylindrical manifold housing including a top surface, and a centered protrusion extending axially from said top surface and having

Assignees

• Kx Technologies Llc

Inventors

• Astle Robert
• Strandemo Garett
• Fuhs Jordan Robert
• Hartmann Matthew W
• Hortin Gregory Gene
• Morgan Jason

Classifications

• E05C19/16 Primary

  Devices holding the wing by magnetic or electromagnetic attraction {(E05C17/56 takes precedence)} · CPC title

• E05B65/006

  for covers or panels (for manholes E02D29/1427; for holes enabling access to installations in buildings E04F19/08; for pressure vessels F16J13/00) · CPC title

• B01D2201/52

  Filter identification means · CPC title

• B01D35/30

  Filter housing constructions · CPC title

• B01D27/08 Primary

  Construction of the casing · CPC title