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Porosity Or Permeability

Porosity Or Permeability patent applications listed include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.

Related Categories:

Measuring And Testing


With Fluid Pressure > Porosity Or Permeability



Canister status determination
12/04/14 - 20140352407 - A method and apparatus are disclosed for determining status of a canister of a topical negative pressure (TNP) system. The method includes the steps of monitoring pressure provided by a pump element of the TNP system, determining at least one characteristic associated with the monitored pressure and determining status of...

Headspace sample
11/27/14 - 20140345365 - A headspace sampler includes: a sample gas collection channel whose one end communicates with a needle; a pressure gas introduction channel and an exhaust channel that communicate with the other end of the channel in parallel via a branching pipe; a pressure control device that delivers pressure gas to the...

Method for accelerated testing of a membrane module
10/30/14 - 20140318219 - A method of accelerated testing of a membrane module for resistance to cyclic stress during operation of an industrial membrane separation process comprising loading at least one membrane module into a test cell of a test plant; conducting said industrial membrane separation process while subjecting said membrane module to cyclic...

Air permeability apparatus
10/09/14 - 20140298892 - An air permeability apparatus has a test head with an opening, a vacuum pump, a clamping arm and an orifice disk that is rotatable around its central axis. The orifice disk is arranged between tubes and the vacuum pump and has a plurality of orifices. The orifice disk has at...

Method for testing the integrity of a hydrophobic porous diaphragm filter
10/09/14 - 20140298893 - A method for testing integrity of a hydrophobic, porous diaphragm filter (42) includes arranging the filter (42) in a non-wetted state in a test housing (30) so that the filter (42) divides an upstream housing region (30a) from a downstream housing region (30b), completely filling the upstream housing region (30a)...

Particulate collection filter state detection device
08/14/14 - 20140223998 - A particulate collection filter state detection device for detecting a state of a filter for collecting particulates in an exhaust gas, according to the present invention, includes first pressure detection means for detecting a first pressure produced at an upstream side of the filter on an exhaust gas flow path,...

Method and apparatus for determining the permeation rate of barrier materials
08/14/14 - 20140223999 - A method and an apparatus for determining the permeation rate of barrier materials, with which in a measuring chamber (8.7) which has at least two shut-off elements (81; 8.2) for opening and closing, a concentration of at least one permeate is determined which, present as a test gas with a...

Inspection method of hollow fiber membrane module
08/07/14 - 20140216138 - Provided is an inspection method of a hollow fiber membrane module and a repairing method capable of quickly identifying the position of a damaged membrane in the hollow fiber membrane module with a simple configuration. An inspection method of a hollow fiber membrane module (1) of the invention includes: a...

Cartridge filter robustness testing
07/24/14 - 20140202235 - A method includes providing at least one filter element in a test rig. The at least one filter element separates a clean side from a dirty side within the test rig. The pressure differential between the clean side and the dirty side is measured. The pressure differential between the clean...

Method and device for detecting clogging of a filter
07/10/14 - 20140190240 - The invention discloses a method and device for detecting clogging of a filter. The method comprises obtaining an ambient parameter, obtaining a threshold associated with the ambient parameter, and obtaining a speed of a fan which is located near the filter. The method further comprises comparing the fan speed with...

Warehouse system and method for detecting air particles
07/03/14 - 20140182359 - A warehouse system and method for detecting air particles in a warehouse are disclosed. The warehouse system includes storage locations, air filters, a cartridge, and a control base. The air filters are correspondingly arranged on outer sides of each storage location. A detecting module of the cartridge detects the air...

Device, a system and a method for measuring permeability, in particular permeability of a fibrin clot
06/26/14 - 20140174156 - A device for measuring permeability of a material sample, the device comprising: an input tank (1) configured to store fluid and to supply the fluid to a sample tank (2) positioned below the input tank (1) and configured to hold the material sample, such as to allow the fluid from...

Porosity measuring device and porosity measuring method
06/26/14 - 20140174157 - A porosity measuring device (10) according to the present invention includes a magnetic field generating section (20), a dispersoid measuring section (30) configured to measure movement of a dispersoid (s) dispersed in a dispersion medium (m) in a state where a magnetic field is generated by the magnetic field generating...

System and method for monitoring environmental weakening of components by monitoring atomic hydrogen permeation
06/12/14 - 20140157874 - A system comprising at least one component for an application in which the at least one component is subjected to Hertzian stress or alternating Hertzian stress or altering Hertzian stress in combination with structural stress, and at least one sensor that is arranged in situ to monitor atomic hydrogen permeation...

Methods of testing a honeycomb filter
05/29/14 - 20140144211 - Methods of testing a honeycomb filter for defects include the step of wetting at least one of the first end portion and the second end portion to provide at least one wetted end portion. The method further includes the step of monitoring the second end portion for fog passing through...

Methods for testing a honeycomb filter
05/29/14 - 20140144212 - Methods of testing a honeycomb filter include the step of maintaining an average temperature of the honeycomb filter and/or fog within a range of from about 10° C. to about 30° C. and flowing a fog with moisture droplets into the honeycomb network of channels at the first end portion...

Apparatus and methods for testing a honeycomb filter
05/29/14 - 20140144213 - Methods of testing a honeycomb filter include the step of wetting the outer peripheral surface of the honeycomb filter to enhance the flow of fog through outer peripheral channels of the honeycomb network of channels. In further examples, methods include the step of obstructing a flow of fog through inner...

Air permeability tester
05/22/14 - 20140137637 - An air permeability apparatus has a test head with an opening, a vacuum pump, a clamping arm and an orifice disk arranged between the test head and the vacuum pump, wherein the orifice disk has a plurality of orifices. The orifice disk is arranged vertically or inclined with respect to...

Sensing condition of fluids
05/08/14 - 20140123731 - A method and system for evaluating a fluid in a machine entails periodically evaluating a permittivity of the fluid and based on periodically evaluating the permittivity of the fluid, observing a change in the permittivity of the fluid. Based on the observed change in the permittivity of the fluid, it...

Permeameter for in-situ measurement of saturated hydraulic conductivity
05/01/14 - 20140116114 - Disclosed is a permeameter for in-situ measurement of saturated hydraulic conductivity. The permeameter includes a chamber fixedly installed into a streambed sediment such that the inside of the chamber is filled with a medium, sediment at water-sediment interface. First and second hydraulic head-measuring lines are respectively connected to upper and...

Method for dispersion and adsorption coefficient estimation using an analysis of pressure transition during a viscosity-switch
04/24/14 - 20140109652 - Disclosed is a method for estimating porous-media longitudinal dispersion and adsorption coefficients. According to various embodiments of the invention, a method for estimating porous-media longitudinal dispersion coefficients is provided, which includes introducing a pure phase component though a porous medium, and introducing a component having a same phase as the...

Intelligent pipeline pressure sensing device
04/24/14 - 20140109653 - An intelligent pipeline pressure sensing device is disclosed. Conventionally, both blower and exhaust fan use the motor with fixed rotation speed to drive the fan blade, so the input/output airflow and pressure are also fixed. When the air inlet duct and air outlet duct are longer or have angle, or...

Miniaturized flow-through cell
04/17/14 - 20140102177 - The present disclosure relates to a diffusion cell for testing the permeation of a compound(s) across a membrane. Also, the present disclosure relates to a method of manufacturing a diffusion cell. Further, the present disclosure relates to a method of performing an assay using a diffusion cell....

Method for determining a buffer effect of an activated carbon filter
04/17/14 - 20140102178 - A method for determining a buffer effect of an activated carbon filter for a tank venting system of a fuel container for hydrocarbon-containing fuels involves feeding a defined quantity of hydrocarbon molecules to the activated carbon filter (320) via a tank connection (320—1) of the activated carbon filter (320) by...

Method of non-destructive inspection of flat membrane
04/10/14 - 20140096594 - A pore diffusion type flat membrane separation apparatus X including a plurality of flat membranes 7 and a plurality of flat plate-like supports 1 arranged alternately with each other, each flat membrane 7 defining a plurality of pores and configured to separate a predetermined dispersed substance contained in a solution...

In situ membrane monitoring
03/20/14 - 20140076030 - A method for in situ monitoring of a membrane of a membrane separation system comprises measuring a complex impedance of the membrane at a plurality of frequencies to provide an indication of the electrical conduction and electrical polarization properties of the membrane. The membrane based separation system for removing or...

Permeability flow cell and hydraulic conductance system
03/06/14 - 20140060156 - The present invention relates to devices and methods for measuring the permeability of dentin. More particularly, the invention relates to devices and methods of quickly and accurately measuring the permeability of dentin using a flow cell....

Permeability flow cell and hydraulic conductance system
03/06/14 - 20140060157 - The present invention relates to devices and methods for measuring the permeability of dentin. More particularly, the invention relates to devices and methods of quickly and accurately measuring the permeability of dentin using a flow cell....

Permeability flow cell and hydraulic conductance system
03/06/14 - 20140060158 - The present invention relates to devices and methods for measuring the permeability of dentin. More particularly, the invention relates to devices and methods of quickly and accurately measuring the permeability of dentin using a flow cell....

Permeability flow cell and hydraulic conductance system
03/06/14 - 20140060159 - The present invention relates to devices and methods for measuring the permeability of dentin. More particularly, the invention relates to devices and methods of quickly and accurately measuring the permeability of dentin using a flow cell....

Porous medium sensor
02/27/14 - 20140053633 - A porous medium sensor comprises: a sensing portion, a gas exchange tubing, a gas permeable protection sleeve, and a water impermeable distal end collar. The sensing portion is at least partially insertable in a porous medium and has a housing with a gas exchange aperture defined therein and a parameter...

Alternate inlet field testing apparatus
02/27/14 - 20140053634 - Embodiments of the invention provide a containment system having a primary air inlet and an alternate inlet. In one embodiment, a containment system includes a housing configured to retain a main filter, the housing having a primary air inlet and an access door configured to access an interior of the...

Methods and apparatus to determine diffusion properties of porous structures for drug delivery
02/06/14 - 20140033800 - Disclosed herein are improved therapeutic devices and methods and improved porous structures and measurement apparatus for use with therapeutic devices. In many embodiments, a porous structure is measured based on diffusion of the gas through the porous structure. The gas measurement may comprise an amount of gas measured to determine...

Device for measuring impermeability of the sealing means of a filter cartridge and process thereof
01/30/14 - 20140026643 - 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...

Method and apparatus for increasing the speed and/or resolution of gas permeation measurements
01/16/14 - 20140013824 - A method and apparatus is provided for measuring the transmission rate of a substance through a material, such as a packaging film. The transmission rate of the substance during the test can be increased, or decreased, by increasing the pressure, or decreasing the pressure, respectively, at which the test is...

Testing apparatus for testing air permeability on thickness direction of plastic matrix, and method therefor
01/16/14 - 20140013825 - An apparatus for testing the air permeability in the thickness direction of a resin matrix composite material layer includes a mold having a cavity and a covering plate, a loading apparatus, a temperature controlling apparatus, a vacuuming apparatus, and a flow detecting element. An air inlet is connected to the...

Testing apparatus for testing gas permeability on thickness direction of plastic matrix
01/16/14 - 20140013826 - An apparatus for testing the gas permeability on the inward facing direction of a pre-impregnated resin matrix composite material layer includes a mold, a loading apparatus, a temperature control apparatus, a vacuuming apparatus, and a flow detecting element. A test specimen is laid flat inside the mold between airtight sealing...

High pressor sensors for detecting membrane fouling
01/02/14 - 20140000346 - In one aspect, the invention relates to methods and devices for detecting membrane fouling in a membrane-based water processing system. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention....

Multi-function testing apparatus for cement and methods of using the same
12/26/13 - 20130340505 - A multi-function testing apparatus contains a test cell, a piston positioned within the test cell and an adjustable piston depth-setting rod. The testing apparatus may be used to assess carbon dioxide resistance and hydraulic bonding strength of a set cement as well as to evaluate the self-healing capabilities of a...

Porosity measurement
12/12/13 - 20130327126 - The measuring device is an on-line measuring device including a pressure generator and a sensor, by which is determined porosity of paper or board, constituting an object of measurement, by directing known suction effect to the paper or board and measuring low pressure produced by the suction effect for the...

Device and method for determining the permeation rate of barrier elements and ultra-barrier elements
11/28/13 - 20130312491 - The concentration gradient of the permeate and, from this, the permeation rate of the barrier element is then determined by non-invasive determination of the concentration of the permeate along the diffusion path....

Fluid transfer device and system
11/28/13 - 20130312492 - Fluid transfer apparatus including a body having a bore formed through at least a portion of its interior. Contained within the bore is a movable plunger that moves without changing the axial dimensions of the body. A first end of the body contains a face designed to be attached to...

Device and method for measuring the air permeability of a building
11/21/13 - 20130305814 - A device measuring air permeability of a building, including: an airtight duct, open at both its ends; a motorized fan; an air induction member positioned in the duct with its axis of rotation substantially parallel to a longitudinal axis of the duct; a mechanism measuring pressure difference between an inside...

Methods of measuring porosity on unconventional rock samples
10/17/13 - 20130269420 - Embodiments disclose methods of estimating porosity from a pore volume and bulk density. The porosity is obtained by multiplying the pore volume and bulk density. Methods disclosed in the subject disclosure are minimally affected by errors in the bulk density measurement....

Containerized mobile gas turbine filter test facility
10/03/13 - 20130255359 - A portable filter testing assembly for testing filter elements is provided. The portable filter testing assembly includes a first modular component including filter elements disposed within an interior and a fluid flow inlet. The testing assembly further includes a second modular component in fluid communication with the first modular component...

Device and process for testing hollow fibre membrane filters
08/15/13 - 20130205873 - A process and a device for testing a hollow fiber membrane filter comprises two compartments separated by a porous membrane. A specific amount of testing liquid is provided via a line from a testing liquid reservoir....

Aerosol generator for eptfe filter testing and method of use
08/01/13 - 20130192344 - Systems and methods for generating low or ultra-low concentrations of oil-based challenging compounds for filtration media are provided. Embodiments of the generators utilize bypass air in addition to the source of challenge. A HEPA filter which utilizes spunbond scrim material and ePTFE membrane for use in an aseptic pharmaceutical filtration...

Capillary-based calibration standards for measurement of permeability
06/20/13 - 20130152671 - A calibration standard or check plug provides calibration standards in the permeability range of 10-10,000 nanoDarcy. The check plug is of similar exterior dimensions to a core sample that would be used with existing permeameters. The check plug is constructed from an impermeable material that is insensitive to moisture. The...

Differential pressure measuring device and degree of pollution monitoring unit and filter unit
06/06/13 - 20130139571 - A differential pressure measurement device may include a piston arranged in a cylinder and configured to define a first pressure space from a second pressure space within the cylinder. A first piston rod may be fixed to the piston and guided through the first pressure space out of the cylinder....

Holder for measuring permeability of unconsolidated sediment
05/02/13 - 20130104629 - Disclosed is a holder for measuring a permeability of an unconsolidated sediment. The holder includes a sediment installation part having a solid sediment attached to opposite ends of an unconsolidated sediment along a longitudinal direction; a transverse pressure supply part installed to surround the sediment installation part to supply a...

Device and method for passage measurement
04/18/13 - 20130091930 - A device for checking the passability of a through-hole of a component includes a front section and an inflatable balloon. The front section is configured so that it can be pressed into or onto the through-hole. The inflatable balloon is fluidically connected to the front section. In one embodiment, a...

Water filtration system
03/07/13 - 20130055794 - A water or liquid substance filtration device is disclosed which removes microorganisms and organic contamination and sterilizes the containers and water lines after the unit. The unit is portable, or can be mounted stationary. The unit has a five-stage filtration and sterilization system controlled by an independent onboard computer system...

Determination of pore size in porous materials by evaporative mass loss
02/21/13 - 20130042670 - A method for determination of pore-size distribution in a porous material called evapo porometry (EP) is capable of determining pore sizes from approximately the nanometer scale up to the micron scale. EP determines the pore size based on the evaporative mass loss at constant temperature from porous materials that have...

Accelerated mixed gas integrity testing of porous materials
01/24/13 - 20130019658 - The invention relates to accelerated mixed gas integrity testing methods, devices, and systems for integrity testing wetted single and multi-layered porous materials, whereby the testing method is non-destructive to the porous materials being tested. The accelerated mixed gas integrity test method includes one or more of the following components: i)...

Method for determining wettability of porous materials
01/24/13 - 20130019659 - Method for determining wettability of porous materials comprises placing a sample of a porous material into a cell of a calorimeter and contacting the sample with a wetting fluid. A heat flow into the cell is continuously measured. Based on results of the measurement and taking into account a thermal...

Testing imbibition of fluid
01/17/13 - 20130014561 - A convenient method of testing imbibition of one or more imbibant fluids by a matrix of particles with a fluid already therein, comprises making a body 4 of packed particles with a matrix fluid filling the interstices between the particles, placing an imbibant fluid in each of a plurality of...

Method for use of microdialysis
01/17/13 - 20130014562 - The method is based on mathematical manipulation of Fick's Laws. Resulting equations were verified against experimental data using methazolamide, warfarin and benzocaine as test drugs....

Assay method and apparatus
12/27/12 - 20120324984 - A skin sample is mounted in a diffusion cell between a receptor and a donor chamber. A substance to be tested is provided to the skin sample via the donor chamber. The diffusion cell has a driver for applying pressure variations to fluid in the receptor chamber in order to...

Method for determining properties of superabsorbent polymer particles and of absorbent structures containing such particles
12/20/12 - 20120318046 - A method for determining the time dependent effective permeability and the uptake kinetics of hydrogel-forming superabsorbent polymer particles under pressure....

Method of checking a membrane filtration module of a filtration plant
11/29/12 - 20120297862 - A method of checking a membrane filtration module of a filtration plant, where the membrane filtration module includes a discharge pipe for the filtrate and a membrane element for filtering a liquid, and includes filling the membrane filtration module with a liquid, so that the membrane element is completely immersed...

Systems and methods for permeability rate testing of barrier films using vapor accumulation
08/23/12 - 20120210770 - The present invention is directed to systems and methods which utilize a cavity ringdown spectroscopy (CRDS) technique for measuring vapor transmission rate through a barrier film by first allowing the vapor to accumulate over a period of time after a steady state condition has been achieved. In this manner, in...

System and method for measuring permeability of materials
07/26/12 - 20120186332 - Systems and methods are provided for measuring the permeance of a material. The permeability of the material may also be derived. Systems typically provide a liquid or high concentration fluid bath on one side of a material test sample, and a gas flow across the opposing side of the material...

Geochemical control of fracturing fluids
07/19/12 - 20120180551 - Methods comprising: placing particulates in a test column; adding a fluid medium comprising a salt solution to the test column; placing the column under test conditions, wherein the test conditions comprise target temperature and target pressure; maintaining test conditions for a target test duration; and, analyzing the particulates. Some methods...

Articles with porous particles for security purposes
07/05/12 - 20120167666 - An article comprises one or more porous particles. Each porous particle comprises a polymer that provides a continuous solid phase including an external particle surface, and first and second discrete pores that are isolated from each other and dispersed within the continuous solid phase. The porous particle further comprises a...

Wettability and matrix imbibition analysis
06/21/12 - 20120151998 - A method of determining wettability of a rock sample, such as from a core sample is described. The sample is preferably crushed or comminuted to a particulate size where micro fractures have been eliminated, but where the particles are still large enough to represent the native rock matrix and texture....

Waterproofing test device and method
05/24/12 - 20120125085 - A waterproofing test device tests waterproofing performance of a unit under test (UUT). The UUT has thereon a test recess and an aperture. The aperture is hermetically sealed with a gas-permeable waterproof element. The waterproofing test device includes a carrying jig, a water-supplying unit, and a pressure-applying unit. The carrying...

Material permeance measurement system and method
04/12/12 - 20120085150 - A system for measuring the permeance of a material. The permeability of the material may also be derived. The system provides a liquid or high concentration fluid bath on one side of a material test sample, and a gas flow across the opposing side of the material test sample. The...

Quality control apparatus for gas diffusion layer for fuel cells
11/10/11 - 20110271742 - A quality control apparatus for a gas diffusion layer includes a support, at least one first pressure device, a plate provided below the first pressure device and supporting the pressure applied to the gas diffusion layer sample, a first controller controlling the compression of the first pressure device, a thickness...

Device and method for measuring the water permeability of a material
10/27/11 - 20110259085 - A device for measuring the water permeability of a material (2) moving along a determinate travelling direction (D) is provided with a nozzle (5), through which a determined water flow (Pu) flows for impinging a surface portion (9) of the material (2); and with first and second reading heads (6a,...

System and method for conditioning and detection of susceptibility to moisture damage in asphalt mixes
09/08/11 - 20110214484 - An apparatus and method for determination of susceptibility of asphalt concrete materials to moisture damage. An asphalt sample of known bulk specific gravity (density) is placed inside a chamber filled with water, which is capable of heating the sample to a predetermined temperature. The chamber is pressurized by introduction of...

Biaxial stress, sheer, permeability, and peel test method and machine to conduct the same
07/21/11 - 20110174056 - The subject invention relates to an apparatus and process for testing various parameters and properties of high strength flexible, fabric laminates. In particular, the apparatus comprises a machine using individually controlled loads to test various material parameters....

Pore structure characterization of filtration cartridges at specific locations along cartridge length
07/21/11 - 20110174057 - A method for determining pore structure characteristics of a filtration cartridge includes the steps of placing a porometry test location isolating device in sealing contact with the filtration cartridge at a desired test location, increasing the porometer test gas pressure until the test gas flows through the cartridge at the...