Motorless carbonator pump with gas saving device

Details Motorless carbonator pump with gas saving device Motorless carbonator pump with gas saving device

1989-03-29

1990-02-27

Miles, Tim

Gas and liquid contact apparatus

Fluid distribution

Pumping

261 82, 261DIG7, B01F 304

Patent

active

049044184

ABSTRACT:
A motorless carbonator including a single acting pneumatic water pump connected between a carbonator tank and an uncarbonated water supply with the pump having a gas return spring integral therewith. The pump is driven by the carbon dioxide (CO.sub.2) fed to the carbonator tank. A CO.sub.2 saving device is coupled between the water pump and the carbonator tank and includes a spring biased diaphragm connected to a piston rod and an O-ring support member which operates to control the venting of CO.sub.2 to the atmosphere so as to reduce the amount of CO.sub.2 required to operate the pump during both a pumping stroke and a return stroke.

REFERENCES:
patent: 352387 (1886-11-01), Banks
patent: 484383 (1892-10-01), Weatherhead
patent: 613376 (1898-11-01), Koenig et al.
patent: 2604310 (1952-07-01), Brown
patent: 3752452 (1973-08-01), Iannelli
patent: 3756576 (1973-09-01), Tremolada
patent: 4808349 (1989-02-01), Rudick

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