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Measuring And Testing > With Fluid Pressure > Porosity Or Permeability

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.

04/17/14 - 20140102177 - Miniaturized flow-through cell
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....

04/17/14 - 20140102178 - Method for determining a buffer effect of an activated carbon filter
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...

04/10/14 - 20140096594 - Method of non-destructive inspection of flat membrane
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...

03/20/14 - 20140076030 - In situ membrane monitoring
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...

03/06/14 - 20140060156 - Permeability flow cell and hydraulic conductance system
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....

03/06/14 - 20140060157 - Permeability flow cell and hydraulic conductance system
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....

03/06/14 - 20140060158 - Permeability flow cell and hydraulic conductance system
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....

03/06/14 - 20140060159 - Permeability flow cell and hydraulic conductance system
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....

02/27/14 - 20140053633 - Porous medium sensor
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...

02/27/14 - 20140053634 - Alternate inlet field testing apparatus
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...

02/06/14 - 20140033800 - Methods and apparatus to determine diffusion properties of porous structures for drug delivery
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...

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

01/16/14 - 20140013824 - Method and apparatus for increasing the speed and/or resolution of gas permeation measurements
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...

01/16/14 - 20140013825 - Testing apparatus for testing air permeability on thickness direction of plastic matrix, and method therefor
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...

01/16/14 - 20140013826 - Testing apparatus for testing gas permeability on thickness direction of plastic matrix
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...

01/02/14 - 20140000346 - High pressor sensors for detecting membrane fouling
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....

12/26/13 - 20130340505 - Multi-function testing apparatus for cement and methods of using the same
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...

12/12/13 - 20130327126 - Porosity measurement
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...

11/28/13 - 20130312491 - Device and method for determining the permeation rate of barrier elements and ultra-barrier elements
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....

11/28/13 - 20130312492 - Fluid transfer device and system
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...

11/21/13 - 20130305814 - Device and method for measuring the air permeability of a building
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...

10/17/13 - 20130269420 - Methods of measuring porosity on unconventional rock samples
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....

10/03/13 - 20130255359 - Containerized mobile gas turbine filter test facility
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...

08/15/13 - 20130205873 - Device and process for testing hollow fibre membrane filters
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....

08/01/13 - 20130192344 - Aerosol generator for eptfe filter testing and method of use
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...

06/20/13 - 20130152671 - Capillary-based calibration standards for measurement of permeability
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...

06/06/13 - 20130139571 - Differential pressure measuring device and degree of pollution monitoring unit and filter unit
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....

05/02/13 - 20130104629 - Holder for measuring permeability of unconsolidated sediment
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...

04/18/13 - 20130091930 - Device and method for passage measurement
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...

03/07/13 - 20130055794 - Water filtration system
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...

02/21/13 - 20130042670 - Determination of pore size in porous materials by evaporative mass loss
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...

01/24/13 - 20130019658 - Accelerated mixed gas integrity testing of porous materials
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)...

01/24/13 - 20130019659 - Method for determining wettability of porous materials
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...

01/17/13 - 20130014561 - Testing imbibition of fluid
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...

01/17/13 - 20130014562 - Method for use of microdialysis
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....

12/27/12 - 20120324984 - Assay method and apparatus
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...

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

11/29/12 - 20120297862 - Method of checking a membrane filtration module of a filtration plant
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...

08/23/12 - 20120210770 - Systems and methods for permeability rate testing of barrier films using vapor accumulation
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...

07/26/12 - 20120186332 - System and method for measuring permeability of materials
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...

07/19/12 - 20120180551 - Geochemical control of fracturing fluids
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...

07/05/12 - 20120167666 - Articles with porous particles for security purposes
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...

06/21/12 - 20120151998 - Wettability and matrix imbibition analysis
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....

05/24/12 - 20120125085 - Waterproofing test device and method
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...

04/12/12 - 20120085150 - Material permeance measurement system and method
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...

11/10/11 - 20110271742 - Quality control apparatus for gas diffusion layer for fuel cells
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...

10/27/11 - 20110259085 - Device and method for measuring the water permeability of a material
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,...

09/08/11 - 20110214484 - System and method for conditioning and detection of susceptibility to moisture damage in asphalt mixes
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...

07/21/11 - 20110174056 - Biaxial stress, sheer, permeability, and peel test method and machine to conduct the same
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....

07/21/11 - 20110174057 - Pore structure characterization of filtration cartridges at specific locations along cartridge length
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...

07/14/11 - 20110167896 - Estimation of reservoir permeability
A method for determining the permeability of a petroliferous reservoir comprising injecting a tagged organic molecule into the reservoir at a first location, and detecting a signal associated with tagged organic molecule at a second location in the reservoir, wherein the tagged organic molecule comprises a radionuclide having a half-life...

07/14/11 - 20110167897 - Method of determining surface pore mouth diameter distribution of porous material
A method of determining surface pore diameter distribution of a porous material is provided. A compressed gas is charged from backside of a sample of a porous body, a surface of the sample is immersed into a liquid wetting agent, and a gas pressure is regulated from high to low,...