Liquid purification or separation – Flow – fluid pressure or material level – responsive – Discharge of treated material
Patent
1974-02-27
1976-03-02
Hart, Charles N.
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Discharge of treated material
210136, 210359, 210516, 210DIG23, B01d 2126
Patent
active
039416992
ABSTRACT:
An evacuated tube having both ends closed has a centrifugally actuated slit type valve fixedly disposed between the ends for dividing the tube into upper and lower chambers. The valve is formed and arranged to provide a passageway between the upper and lower chambers when subjected to a centrifugal force of proper intensity and direction. Upon cessation of the force, the valve closes to provide a separation between the upper and lower chambers.
REFERENCES:
patent: 2577780 (1951-12-01), Lockhart
patent: 3508653 (1970-04-01), Coleman
patent: 3586064 (1971-06-01), Brown et al.
patent: 3684136 (1972-08-01), Baumann
Becton Dickinson and Company
Hart Charles N.
Spitzer Robert H.
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