Liquid purification or separation – Filter – Supported – shaped or superimposed formed mediums
Patent
1984-10-05
1986-01-14
Miles, Tim
Liquid purification or separation
Filter
Supported, shaped or superimposed formed mediums
210489, 210495, 426 77, B01D 2504
Patent
active
045644527
ABSTRACT:
A disposable complete filtration apparatus constructed from a filter means and flexible impermeable film joined together in such manner as to form fluid receptacles for the filtrant and filtrate, said receptacles being connected internally to one another by said filter means. Being preformed, the apparatus requires no assembly by the user. Moreover, by lying flat it occupies negligible space before use and can be dispensed from a roll or stack, yet being flexible it dilates or contracts to accept the sample to be filtered and accomodates the movement of fluid during filtration. In one embodiment the filter means will trap microorganisms and the receiver contains a drinking tube which allows the user to enjoy microbiologically pure water. Chemical or biochemical test reagents may be incorporated into the apparatus so that simple tests requiring filtration and addition of test reagents can be performed automatically.
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patent: 3352226 (1967-11-01), Nelsen
patent: 3372634 (1968-03-01), Brinkman et al.
patent: 3419151 (1968-12-01), Smith et al.
patent: 3615708 (1971-10-01), Abile-Gal
patent: 3651947 (1972-03-01), Schollhamer
patent: 3762564 (1973-10-01), Weedon et al.
patent: 3861975 (1975-01-01), Hauslein
patent: 4035304 (1977-07-01), Watanabe
patent: 4115277 (1978-09-01), Swank
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