Filter membrane support and filtration funnel
Patent 5112488 Issued on May 12, 1992. Estimated Expiration Date: 
June 17, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
June 17, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesMicrobial filter assembly Patent #: 4317726 InventorAssigneeApplicationNo. 717241 filed on 06/17/1991US Classes:210/541, ADJUNCTS210/542, MISCELLANEOUS422/101, Including means for separating a constituent; e.g., filter, condenser, extractor, etc.435/308.1Means for separation or recovery of a microorganism from culture mediaExaminersPrimary: Sever, FrankAttorney, Agent or FirmInternational ClassesB01D 061/20446 450 451 453 455 473 500.21 541 542 Foreign Application Priority Data1990-06-28 FRAbstractThe instant invention provides a support apparatus for a filter membrane which comprises a central porous support section and a peripheral support section, said central porous support section adapted to support a central portion of a filter membrane and said peripheral support section adapted to support a peripheral portion of a filter membrane, a base support for said central support section and said peripheral support section, and means to separate said central porous support section from said peripheral support action thereby to separate said peripheral portion of said filter membrane from said peripheral support section.Field of SearchSliding or rolling on guide meansDiffusing or passing through septum selective as to material of a component in liquid/liquid solvent or colloidal extraction Biological fluid (e.g., blood, urine, etc.) Diffusing or passing through septum selective as to material of a component of liquid Filtering through membrane (e.g., ultrafiltration) Removing specified material Hyperfiltration (e.g., reverse osmosis, etc.) Liquid/liquid solvent or colloidal extraction or diffusing or passing through septum selective as to material of a component of liquid; such diffusing or passing being effected by other than only an ion exchange or sorption process SECTIONAL CHAMBER PRESS TYPE With porous filler Medium clamped in joint With spacing frame Imperforate base recess in plate With repair or assembling means Plates or frames Having membrane CASING DIVIDED BY MEMBRANE INTO SECTIONS HAVING INLET(S) AND/OR OUTLET(S) Each section having inlet(s) and outlet(s) Planar membrane Planar membrane Clamped in casing joint Including means for separating a constituent; e.g., filter, condenser, extractor, etc. |
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