Liquid purification or separation – Gravitational separator – Portable invertible – e.g. – milk and cream separator
Patent
1977-07-01
1979-05-01
Sever, Frank
Liquid purification or separation
Gravitational separator
Portable invertible, e.g., milk and cream separator
210518, 210DIG23, 233 1R, 233 26, B01D 2100
Patent
active
041522702
ABSTRACT:
A fluid collection device for receiving a liquid, such as blood, and which is adapted to be centrifuged to separate it into its relatively light and heavy phases. The collection device has a phase partitioning device having a specific gravity intermediate those of the light and heavy phases of the blood so that it automatically moves during centrifugation to substantially the interface of the phases to sealingly partition them from each other. The device has a resilient sealing member which is of conical or "umbrella" configuration, and another member of different specific gravity connected to the sealing member and having stabilizing members for maintaining the sealing member properly oriented in the container. The sealing member partially collapses during centrifugation to allow blood components to pass by the sealing member. As the phases become separated and the centrifugal forces decrease, the sealing member expands radially outwardly and sealingly engages the walls of the container providing a barrier between the light and heavy phases upon complete phase separation.
REFERENCES:
patent: 3508653 (1970-04-01), Coleman
patent: 3741400 (1973-06-01), Dick
patent: 3814258 (1974-06-01), Ayres
patent: 3832141 (1974-08-01), Haldopoulos
patent: 3846077 (1974-11-01), Ohringer
patent: 3862042 (1975-01-01), Ayres
patent: 3897337 (1975-07-01), Ayres
patent: 3897340 (1975-07-01), Ayres
patent: 3897343 (1975-07-01), Ayres
patent: 3935113 (1976-01-01), Ayres
patent: 3945928 (1976-03-01), Ayres
Garber Stanley N.
O'Meara William R.
Sever Frank
Sherwood Medical Industries Inc.
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