Recirculating carbonator and liquid level control

Details Recirculating carbonator and liquid level control Recirculating carbonator and liquid level control

1977-04-04

1979-02-20

Tollberg, Stanley H.

Dispensing

Automatic control

Delivery from source controlled by quantity in discharging...

137386, 222 64, 2221291, 222318, B67D 556

Patent

active

041402456

ABSTRACT:
A recirculating carbonator and beverage dispenser requires only one pump. The system's function can be enhanced by the use of a two position spool valve having a fresh water inlet port, a carbonated water inlet port, and a fluid outlet port commonly connected with a central bore. A spool member is slidably disposed within the bore to selectively interrupt fluid communication between the carbonated water inlet port and the liquid outlet port during the presence of a low water signal generated by a level sensing device within the system's carbonation tank. During the interruption, fresh make-up water is added to the system. The level sensing device includes a body with a longitudinal bore therethrough, an inlet for the constantly flowing fluid, and a venturi tube depending from the body.

REFERENCES:
patent: 3394847 (1968-07-01), Garrard
patent: 3575533 (1971-04-01), Bubula
patent: 3731845 (1973-05-01), Booth
patent: 3809292 (1974-05-01), Booth et al.

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