Pumps – One fluid pumped by contact or entrainment with another – Liquid pumped by supplying or exhausting gaseous motive...
Patent
1976-06-28
1979-02-20
Croyle, Carlton R.
Pumps
One fluid pumped by contact or entrainment with another
Liquid pumped by supplying or exhausting gaseous motive...
417427, 417900, F04F 106
Patent
active
041404378
ABSTRACT:
An apparatus for conveying liquids mixed with solid substances to a distance is disclosed, comprising a compressed air pump formed by two or more cylindrical chambers, each provided with an inlet valve for the liquid and with a connection for the inlet and discharge of compressed air, which is cyclically and alternatively fed into and expelled from the cylinders under the control of a proper distributor, the apparatus comprising a free surface loading hopper located upstream and above the pump body, having an outlet communicating with said inlet valves of the cylindrical chambers, whereby the flow rate of the liquid arriving to the hopper is continuously compensated so as to uniformly feed the liquid by gravity to the cylindrical chambers, the apparatus further comprising at least a spare cylindrical chamber adapted to be used in substitution for one of the normally operating cylindrical chambers, for servicing and/or maintenance purposes.
REFERENCES:
patent: 3173379 (1965-03-01), Jolly
patent: 3659966 (1972-05-01), Faber
patent: 3751184 (1973-08-01), Buchwald et al.
Croyle Carlton R.
Flocks Karl W.
Look Edward
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