Microporous filtration funnel assembly
August 27, 2012. 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 References 2904857 3295686 Mouth filter for use with pipettes Bacteria filter unit Blood filter Adapter for laboratory filter Disposable, one-piece filter unit Frangible bonded disposable filtration unit with recoverable filter Reusable filter unit with recoverable filter membrane Plastic filter assembly InventorsAssigneeApplicationNo. 936594 filed on 08/27/1992US Classes:210/232, WITH REPAIR OR ASSEMBLING MEANS73/863.23, Sieve, filter, or semipermeable membrane73/863.25, Changing feature210/238, Hand manipulable210/321.75, Planar membrane210/321.84, Planar membrane210/406, Vacuumized filtrate receiver210/445, Clamped in casing joint210/446, Axially aligned inlet and outlet210/450, Gasket within casing or spaced removable end members210/455, Receptacle and modified spacing surface or support for filter medium210/474, At upper edge of filtrate receiver210/482, At lower end or prefilt receiver422/101, Including means for separating a constituent; e.g., filter, condenser, extractor, etc.435/308.1, Means for separation or recovery of a microorganism from culture media604/406Filter or series thereof for liquid entering or leaving containerExaminersPrimary: Lithgow, Thomas M.Attorney, Agent or FirmForeign Patent References
International ClassesB01D 029/05B01D 035/02 AbstractAn in-line filter assembly is provided of a type having a housing divided into inlet and outlet chambers by a filter membrane having its periphery fluid-flow-sealed within the housing, the filter being readily disassemblable so that the filter membrane can be removed for identification or analysis of the material filtered from the fluid during use of the filter.Field of SearchWITH REPAIR OR ASSEMBLING MEANSHand manipulable Clamped in casing joint Axially aligned inlet and outlet Gasket within casing or spaced removable end members Vacuumized filtrate receiver At upper edge of filtrate receiver At lower end or prefilt receiver Receptacle and modified spacing surface or support for filter medium Planar membrane Planar membrane Having fluid filter Filter or series thereof for liquid entering or leaving container Including means for separating a constituent; e.g., filter, condenser, extractor, etc. Sieve, filter, or semipermeable membrane Changing feature |
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