Device for measuring impermeability of the sealing means of a filter cartridge and process thereof

Patent metadata

Field	Value
Publication number	US-9869627-B2
Application number	US-201313949791-A
Country	US
Kind code	B2
Filing date	Jul 24, 2013
Priority date	Jul 24, 2012
Publication date	Jan 16, 2018
Grant date	Jan 16, 2018

Abstract

A device for measuring permeability of a filter cartridge seal includes a blocking member for blocking an input to the filter cartridge and a housing for tightening the seal. A removable chamber wall is configured to form a sealed chamber with the housing and the blocking member. Pressure in the sealed chamber is varied to test the seal and to detect leaks.

First claim

What is claimed is:

1. A method for measuring the impermeability of a filter cartridge comprising a casing having an input and an output and having a gasket seal coupled to the casing, with a measuring device comprising a housing and a cartridge receiving means configured to cooperate with the gasket seal of the cartridge, the method comprising:
disposing a pressure sensitive film on the receiving means of the housing;
positioning the cartridge in the measuring device such that the gasket seal of the cartridge cooperates with the receiving means of the measuring device housing to form a connection between the measuring device and the filter cartridge, and the pressure sensitive film is positioned between the gasket seal and the receiving means;
blocking an input or an output of the filter cartridge;
forming a sealed chamber proximate the input or output;
varying a pressure in the sealed chamber; and
measuring a change in pressure of the sealed chamber over time to determine the impermeability of the filter cartridge.

2. The method of claim 1 , further comprising measuring a temperature of the sealed chamber.

3. The method of claim 1 , further comprising varying a temperature in the sealed chamber.

4. The method of claim 1 , further comprising measuring the distribution of the pressure exerted on the pressure sensitive film.

5. The method of claim 1 , further comprising filling the sealed chamber with a fluid.

6. The method of claim 1 , further comprising injecting a visible gas into the sealed chamber.

7. The method of claim 1 , wherein forming the sealed chamber proximate the input or output comprises securing a housing unit to a filter cartridge.

Assignees

• Gen Electric

Inventors

• Claudon Philippe
• Pesenti Ludovic

Classifications

• G01M13/005

  Sealing rings · CPC title

• G01M3/2869 Primary

  for seals not incorporated in a pipe joint · CPC title

• B01D2273/18

  Testing of filters, filter elements, sealings · CPC title

• G01N15/08 Primary

  Investigating permeability, pore-volume, or surface area of porous materials · CPC title