초록 ▼

An apparatus for use in testing a plurality of compositions in parallel. The apparatus includes an upper plate having a plurality of openings extending therethrough to form upper fluid chambers and a lower plate having a plurality of openings extending at least partially therethrough to form cavitie

An apparatus for use in testing a plurality of compositions in parallel. The apparatus includes an upper plate having a plurality of openings extending therethrough to form upper fluid chambers and a lower plate having a plurality of openings extending at least partially therethrough to form cavities. A central plate having a plurality of openings extending therethrough to form central fluid chambers is positioned between the upper and lower plates with the central chambers in alignment with the upper chambers and the cavities. A porous sheet is interposed between the upper and central plates such that an upper surface of the sheet is in contact with fluid within the upper chamber and a lower surface of the sheet is in contact with fluid within the central chamber. The apparatus further includes a flexible membrane positioned between the lower and central plates such that changes in pressure within the cavities or fluid chambers cause deflection of the membrane to force fluid to pass through the porous sheet.

대표청구항 ▼

1. An apparatus for use in performing a plurality of tests in parallel, the apparatus comprising:an upper plate having a plurality of openings extending at least partially therethrough to form upper fluid chambers; a lower plate having a plurality of openings extending at least partially therethroug

1. An apparatus for use in performing a plurality of tests in parallel, the apparatus comprising:an upper plate having a plurality of openings extending at least partially therethrough to form upper fluid chambers; a lower plate having a plurality of openings extending at least partially therethrough to form cavities; a central plate having a plurality of openings extending therethrough to form central fluid chambers, the central plate being positioned between the upper and lower plates with the central fluid chambers in alignment with the upper fluid chambers and the cavities; a first sheet having porous test regions interposed between the upper and central plates such that an upper surface of the first sheet is at least partially exposed to the first upper fluid chambers and a lower surface of the sheet is at least partially exposed to the central fluid chambers; and a flexible membrane positioned between the lower and central plates such that changes in pressure within the cavities or upper and central fluid chambers cause deflection of the membrane and forces fluid to pass through the porous test regions.