Filter interconnect utilizing correlated magnetic actuation for downstream system function

Patent metadata

Field	Value
Publication number	US-11712645-B2
Application number	US-202016876766-A
Country	US
Kind code	B2
Filing date	May 18, 2020
Priority date	May 17, 2019
Publication date	Aug 1, 2023
Grant date	Aug 1, 2023

Abstract

A filtration system interconnection structure having a filter manifold including a sump housing and a first correlated magnet located on or connected to a portion of the manifold, and a filter cartridge including a filter media, first and second end caps sealed to the filter media, and a second, paired correlated magnet located on or connected to the filter cartridge housing body. The first and second correlated magnets are interconnected via magnetic communication upon insertion of the filter cartridge into the sump housing, and upon movement of the filter cartridge into an alignment position, the correlated magnet located on or connected to the manifold is permitted to translate as a result of the magnetic communication. The polarity profiles of the paired correlated magnets are aligned such that a repulsion force is created when the filter cartridge is inserted within the manifold sump housing.

First claim

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

1. A filtration system comprising:
a filter manifold including:
a sump;
an electronic switch assembly comprising a circuit actuable between open and closed positions, the switch assembly axially disposed with respect to the sump; and
a first correlated magnet operably coupled to the switch assembly, the first correlated magnet comprising 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 the plurality of magnetic field emission sources; and

a filter cartridge including:
a housing having a body;
a filter media disposed with the housing body;
a filter head forming a fluid-tight seal with the body; and
a complementary or paired second correlated magnet disposed within or connected to the filter head and having a face oriented parallel to a top surface thereof, the second correlated magnet rotatable with the filter cartridge;

wherein the first and second correlated magnets are interconnected via magnetic communication upon insertion of the filter cartridge into the sump housing, and upon rotation of the filter cartridge into an alignment position, the first correlated magnet translates axially with respect to a longitudinal axis of the sump as a result of the magnetic communication to contact an actuator to activate the switch.

2. The filtration system of claim 1 wherein the first and second correlated magnets each comprise an array of correlated magnets.

3. The filtration system of claim 1 wherein the first correlated magnet plurality of magnetic field emission sources are aligned with a plurality of magnetic field emission sources of the second correlated magnet, such that a repulsion force is generated between the magnets when the filter cartridge is inserted within the sump and rotated to the alignment position.

4. The filtration system of claim 1 wherein the sump includes an alignment thread or channel for mechanically coupling with a filter boss or lug extending radially outwards from the filter cartridge housing body when the filter cartridge is inserted within the sump and rotated to the alignment position.

5. The filtration system of claim 4 wherein the filter cartridge rotates approximately 90-degrees in a first direction from an initial insertion position within the sump to the alignment position.

6. The filtration system of claim 1 wherein the manifold further includes a valve, and wherein activation of the switch actuates the valve to turn on and turn off fluid flow to the filter cartridge.

7. The filtration system of claim 1 wherein the filter cartridge further includes an axial stem and the second correlated magnet is disposed within the axial stem, parallel to the top surface of the filter head.

8. The filtration system of claim 1 wherein the first correlated magnet is disposed within a translatable magnet holder of the switch assembly, the magnet holder normally biased towards the filter head by a spring and slidable axially along the longitudinal axis of the sump as a result of the magnetic communication to contact the actuator to activate the switch upon rotation of the filter cartridge into an alignment position.

9. A filter cartridge, comprising:
a housing having a body;
a filter media disposed within the housing body;
a filter head forming a fluid-tight seal with the body;
an axial stem extending from a top surface of the filter head and comprising fluid ingress and egress ports in fluid communication with the filter media; and
a first correlated magnet disposed within or connected to the axial stem and having a face oriented parallel to a top surface thereof, the first correlated magnet rotatable with the filter cartridge upon insertion into a sump of a filter manifold, the first correlated magnet comprising 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 the plurality of magnetic field emission sources.

10. The filter cartridge of claim 9 further including a filter boss or lug extending radially from the housing body, the filter boss or lug adapted for mechanically coupling with an alignment thread or channel of the sump.

11. The filter cartridge of claim 10 wherein the filter cartridge rotates approximately 90-degrees in a first direction from an initial insertion position within the sump to the alignment position.

12. The filter cartridge of claim 9 wherein the first correlated magnet comprises an array of correlated magnets each comprising a plurality of magnetic field emission sources, the array of correlated magnets arranged in accordance with the predefined spatial force function that corresponds to the predetermined alignment of the plurality of magnetic field emission sources.

13. A method of interconnecting a filter cartridge and filter manifold, comprising:
inserting the filter cartridge into a sump of the filter manifold, the filter cartridge comprising a housing having a body, a filter media disposed within the housing body, a filter head forming a fluid-tight seal with the body, and a first correlated magnet disposed within or connected to the filter head and having a face oriented parallel to a top surface thereof, the first correlated magnet being rotatable with the filter cartridge, the first correlated magnet comprising 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 the plurality of magnetic field emission sources;
rotating the filter cartridge within the sump into an alignment position;
aligning the first correlated magnet plurality of magnetic field emission sources with a plurality of magnetic field emission sources of a complementary or paired second correlated magnet such that a repulsion force is generated between the magnets, the second correlated magnet operably coupled to a switch assembly axially disposed with respect to the sump; and
causing the second correlated magnet to translate axially with respect to a longitudinal axis of the sump as a result of magnetic repulsion to contact an actuator to activate the switch.

14. The method of claim 13 wherein the sump includes an alignment thread or channel for mechanically coupling with a filter boss or lug extending radially outwards from the filter cartridge housing body, and further comprising the steps of:
aligning the filter boss or lug with the alignment thread or channel while inserting the filter cartridge within the sump; and
causing the filter boss or lug to travel to an end of the alignment thread or channel while rotating the filter cartridge to the alignment position.

15. The method of claim 14 wherein the filter cartridge rotates approximately 90-degrees in a first direction from an initial insertion position within the sump to the alignment position.

16. A filtration system comprising:
a filter manifold including:
a sump;
an electronic switch assembly comprising a circuit actuable between open and closed positions, the switch assembly radially disposed with respect to the sump; and
a first correlated magnet operably coupled to the switch assembly, the first correlated magnet comprising 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 the plurality of magnetic field emission sources; and

a filter car

Assignees

• Kx Technologies Llc

Inventors

• Astle Robert
• Li William
• Strandemo Garett
• Hartmann Matthew W

Classifications

• B01D2201/4015

  Bayonet connecting means · CPC title

• B03C1/00

  Magnetic separation · CPC title

• B01D2201/31

  Other construction details · CPC title

• B01D29/33

  arranged for inward flow filtration · CPC title

• B01D35/30 Primary

  Filter housing constructions · CPC title