Electromagnetic fluid filter using magnetostrictive sensors

Patent metadata

Field	Value
Publication number	US-10940486-B2
Application number	US-201916548033-A
Country	US
Kind code	B2
Filing date	Aug 22, 2019
Priority date	Jun 24, 2015
Publication date	Mar 9, 2021
Grant date	Mar 9, 2021

Abstract

In at least one illustrative embodiment, an electromagnetic filter may include a transfer pipe and multiple electromagnetic filter elements positioned in an interior volume of the pipe. Each electromagnetic filter element includes a support comb, a solenoid coupled to the support comb, and multiple magnetic members arranged in a planar array positioned within an opening of the support comb. Each magnetic member may rotate about an end that is coupled to the support comb. The magnetic members may be magnetostrictive sensors and may include a biorecognition element to bind with a target microorganism. A method for fluid filtration includes coupling the electromagnetic filter between a fluid source and a fluid destination, energizing the solenoids of each electromagnetic filter elements, and flowing a fluid media through the transfer pipe of the electromagnetic filter. The fluid media may be liquid food such as fruit juice. Other embodiments are described and claimed.

First claim

The invention claimed is:

1. An electromagnetic filter element comprising:
a support comb comprising a magnetic material, wherein the support comb defines an opening, and wherein the support comb is configured to generate a magnetic field; and
a plurality of elongated magnetic members arranged in a planar array positioned within the opening of the support comb, wherein each magnetic member comprises a first end and a second end, wherein each magnetic member comprises a magnetostrictive material, and wherein the first end of each magnetic member is coupled to the support comb;
wherein each magnetic member further comprises a binding element to bind with a non-magnetic contaminant particle; and
wherein the first end of each magnetic member is coupled to the support comb at a corresponding pivot point, wherein each magnetic member is rotatable about the corresponding pivot point.

2. The electromagnetic filter element of claim 1 , wherein the binding element comprises a biorecognition element to bind with a microorganism.

3. The electromagnetic filter element of claim 2 , wherein the biorecognition element comprises a bacteriophage that is genetically engineered to bind with the microorganism.

4. The electromagnetic filter element of claim 1 , wherein the binding element comprises a chemical layer to bind with the non-magnetic contaminant particle.

5. The electromagnetic filter element of claim 1 , wherein magnetization of the support comb is controlled by a solenoid coupled to the support comb, wherein each of the magnetic members is magnetically coupled to the support comb, and wherein each magnetic member may rotate about the first end of the magnetic member coupled to the support comb.

6. The electromagnetic filter element of claim 1 , wherein the first end of each magnetic member is hingedly attached to the support comb.

7. The electromagnetic filter element of claim 1 , wherein each magnetic member comprises a magnetostrictive sensor.

8. The electromagnetic filter element of claim 1 , wherein:
the first end of each magnetic member is coupled to the support comb at a corresponding pivot point; and
the support comb is coated with a magnetic insulation layer at points other than the pivot points.

9. The electromagnetic filter element of claim 1 , wherein the magnetostrictive material of each magnetic member extends from the first end to the second end, and wherein the magnetic field forces each magnetic member to extend parallel to the planar array with the second end of each magnetic member positioned in the opening of the support comb.

10. The electromagnetic filter element of claim 1 , wherein a fluid flows through the opening defined in the support comb.

11. An electromagnetic filter comprising:
a transfer pipe that defines an interior volume; and
a plurality of electromagnetic filter elements positioned in the interior volume of the transfer pipe, wherein each of the electromagnetic filter elements comprises:
a support comb comprising a magnetic material, wherein the support comb defines an opening, and wherein the support comb is configured to generate a magnetic field;
and
a plurality of elongated magnetic members arranged in a planar array positioned within the opening of the support comb, wherein each magnetic member comprises a first end and a second end, wherein each magnetic member comprises a magnetostrictive material, and wherein the first end of each magnetic member is coupled to the support comb;

wherein each magnetic member further comprises a binding element to bind with a non-magnetic contaminant particle; and
wherein the first end of each magnetic member is coupled to the corresponding support comb at a corresponding pivot point, wherein each magnetic member is rotatable about the corresponding pivot point.

12. The electromagnetic filter of claim 11 , wherein each of the electromagnetic filter elements has a different orientation of the plurality of magnetic members.

13. The electromagnetic filter of claim 11 , wherein the binding element comprises a biorecognition element to bind with a microorganism.

14. The electromagnetic filter of claim 13 , wherein the biorecognition element comprises a bacteriophage that is genetically engineered to bind with the microorganism.

15. The electromagnetic filter of claim 11 , wherein the binding element comprises a chemical layer to bind with the non-magnetic contaminant particle.

16. The electromagnetic filter of claim 11 , wherein magnetization of each support comb is controlled by a corresponding solenoid coupled to the corresponding support comb, wherein each of the magnetic members is magnetically coupled to the corresponding support comb, and wherein each magnetic member may rotate about the first end of the magnetic member coupled to the corresponding support comb.

17. The electromagnetic filter of claim 11 , wherein the first end of each magnetic member is hingedly attached to the corresponding support comb.

18. The electromagnetic filter of claim 11 , wherein:
the first end of each magnetic member is coupled to the corresponding support comb at a corresponding pivot point; and
each support comb is coated with a magnetic insulation layer at points other than the pivot points.

Assignees

• Univ Auburn

Inventors

• Chin Bryan A
• Horikawa Shin
• Best Steve R
• Chen I-Hsuan
• Cheng Zhongyang
• Du Songtao

Classifications

• A23B2/50

  by irradiation without heating · CPC title

• A23B2/001

  Details of apparatus, e.g. pressure feed valves or for transport, or loading or unloading manipulation · CPC title

• G01N29/022

  Fluid sensors based on microsensors, e.g. quartz crystal-microbalance [QCM], surface acoustic wave [SAW] devices, tuning forks, cantilevers, flexural plate wave [FPW] devices (microdevices per se B81B) · CPC title

• G01N29/24

  Probes {(transducers for acoustic waves B06B, G10K; for measuring G01H)} · CPC title

• C02F2103/32

  from the food or foodstuff industry, e.g. brewery waste waters · CPC title