Autonomous filtration switch

Patent metadata

Field	Value
Publication number	US-9789428-B1
Application number	US-201715416479-A
Country	US
Kind code	B1
Filing date	Jan 26, 2017
Priority date	Nov 21, 2016
Publication date	Oct 17, 2017
Grant date	Oct 17, 2017

Abstract

An apparatus for a switchable filter assembly includes a first conduit coupled to a second and a third conduit, where a liquid has the ability to flow through the first conduit to the second conduit and the third conduit, and where the second conduit and the third conduit are arranged in parallel. A first assembly is capable of sliding inside the first conduit, such that a position of the first assembly determines an amount of liquid flowing to the third conduit. The first assembly includes a compressible member coupled to a first structure, where the first structure prevents the liquid from passing through the first conduit to the third conduit. An amount of compression of the compressible member coupled to the first structure is dependent on a pressure of the liquid flowing from the first conduit to the second conduit.

First claim

What is claimed is:

1. An apparatus for a switchable filter assembly, the apparatus comprising:
a first conduit coupled to a second and a third conduit, wherein a liquid has the ability to flow through an inlet portion of the first conduit to the second conduit and the third conduit, and wherein the second conduit and the third conduit are arranged in parallel,
a first particle filter coupled to the second conduit, wherein the liquid has the ability to flow through an inlet portion of the second conduit towards the first particle filter, and wherein the first particle filter introduces a first chemical treatment into the liquid;
a second particle filter coupled to the third conduit, wherein the liquid has the ability to flow through an inlet portion of the third conduit towards the second particle filter, wherein the second particle filter introduces a second chemical treatment into the liquid different from the first chemical treatment, and wherein a mesh filter size of the first particle filter is different from a mesh filter size of the second particle filter;
a fourth conduit coupled to an outlet portion of the second conduit and an outlet portion of the third conduit, wherein the liquid has the ability to flow from the first particle filter to the fourth conduit and the liquid has ability to flow from the second particle filter to the fourth conduit; and
a first assembly inside the first conduit, such that a position of the first assembly determines an amount of liquid flowing to the third conduit,
wherein the first assembly includes a first structure, wherein the first structure prevents the liquid from passing through the first conduit to the third conduit,
wherein a position of the first structure of the first assembly is dependent on a pressure of the liquid flowing from the first conduit to the second conduit,
wherein the first assembly is capable of sliding inside the first conduit, wherein the first assembly includes a compressible member coupled to the first structure, and
wherein an amount of compression of the compressible member coupled to the first structure determines the position of the first structure of the first assembly.

Assignees

• IBM

Inventors

• Porter Donald W
• Porter Jacob T
• Vandeventer Allan C
• Wertz Jason T

Classifications

• B01D35/1475 Primary

  Pressure relief valves or pressure control valves · CPC title

• B01D2201/188

  Multiple filtering elements having filtering areas of different size · CPC title

• B01D29/52

  in parallel connection · CPC title

• H05K7/20763

  Liquid cooling without phase change · CPC title

• B01D29/56

  in series connection · CPC title