B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 29/085 (2006.01) B01D 29/05 (2006.01) B01D 61/18 (2006.01) B01D 61/20 (2006.01) B01D 63/08 (2006.01) G01N 1/40 (2006.01)
Patent
CA 2337987
Disclosed is a membrane filter system comprising an integral plastic holder (1, 23) having a filter receiving section (2, 24) far receiving a membrane filter (3, 30) that collects target microorganism contained in sample solution, a funnel mount (9. 25) positioned at a level higher than the filter receiving section for carrying thereon a cup-shaped paper funnel (12, 33) adapted to receive the sample solution, and a drainage (7, 28) communicated with the filter receiving section. The funnel has a bottom sheet or a paper filter (14, 35) and a bottom peripheral flange (15, 36) surrounding the bottom sheet. Resin seal means (11. 12) is fitted to the funnel mount to provide liquid-tight engagement between the funnel and the holder. This bottom sheet of the funnel is positioned above the membrane filter and serves as a primary filter for collecting particles in the sample solution larger than the largest microorganism before the sample solution reaches the membrane filter.
Nishimura Yuuichi
Shiraiwa Kazuo
Tawara Masamichi
Waku Shin-Ichi
Elmex Limited
Fetherstonhaugh & Co.
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