Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1975-08-25
1977-04-05
Lutter, Frank W.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
128214R, 210241, 210350, 210359, 210385, 210519, 210523, 210DIG23, B01D 3322
Patent
active
040160777
ABSTRACT:
My invention permits very small pore filtration of blood by means of a high capacity "two-dimensional" filter of round pores of twelve to fifteen microns in diameter. The viscous blood and its cells and platelets are forced through these minute orifices by means of a pressure applied to the flexible bag of donor blood, a rigid connecting passageway, and to a flexible pleated solid sheath which covers the filter but which is sealed to the outer portion of the connecting passageway and to the periphery of the filter. These flexible portions are first emptied of air by means of a vacuum applied from below through the filter and then the blood is evenly maintained above this large filter by means of producing a slowly rotating swirling wave of blood. The blood is collected by gravity funnel drainage into a receiving bottle. Any frothed blood which enters this receiving bottle is removed from its top by vacuum aspiration.
REFERENCES:
patent: 1141972 (1915-06-01), Muhleman
patent: 2727441 (1955-12-01), Cram
patent: 2899070 (1959-08-01), Murphy
patent: 3885735 (1975-05-01), Westbert
patent: 3891416 (1975-06-01), Leonard et al.
patent: 3900398 (1975-08-01), Gillette
Lutter Frank W.
Sever Frank
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