Liquid purification or separation – Gravitational separator – Portable invertible – e.g. – milk and cream separator
Patent
1975-11-19
1978-04-11
Marantz, Sidney
Liquid purification or separation
Gravitational separator
Portable invertible, e.g., milk and cream separator
210DIG23, 23259, 128 2F, 128 2G, B01D 2126
Patent
active
040837882
ABSTRACT:
A blood serum separation unit which includes a tubular structure having openings at each of opposite ends and having a slidable disk element mounted within a base end thereof, having an outside diameter substantially less than an inside diameter of the tubular element such that upon centrifugal action the slidable disk will be slidable therewithin by torque of centrifugal action, and the tubular element being mounted substantially flushly within but removable from an outer tube having an upper open end and having a stopper-plug which when inserted plugs both the outer tubular container and the tubular element located therewithin, the plug being of a composition penetrable by a tubular needle for introducing blood from a subject to space within the tubular container and tubular element, the disk being of a specific gravity intermediate between those specific gravities of blood serum and blood coagulant precipitate whereby upon inversion of the blood-containing tube and the thereafter subjection of the same to centrifugal action forces, the coagulant precipitate is separated and compacted at an upper end of the tubular element by the disk and upon removal of the stopper-plug serum is left isolated in the remaining outer tube base, the coagulant precipitate having been removed with the inner tubular element.
REFERENCES:
patent: 3508653 (1970-04-01), Coleman
patent: 3832141 (1974-08-01), Haldopoulos
patent: 3894952 (1975-07-01), Ayres
patent: 3929646 (1975-12-01), Adler
patent: 3957654 (1976-05-01), Ayres
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