LIQUID PROPORTIONER Russian patent published in 1995 - IPC

FIELD: trade. SUBSTANCE: device is provided with above-liquid space branch pipe 26 and additional passages fitted on body of mutually plug cock 9 which are identical to main passages; two diametrical passages are hermetically brought in communication with upper parts of metering reservoirs 3 and 4 with the aid of pipes 5 and 7; third and fourth passages are brought in communication with branch pipe 26 and with atmosphere, respectively. Liquid from supply reservoir 1 enters metering reservoir 3 via bypass pipe line 2; liquid from metering reservoir 4 is drained through branch pipe 25. Then plug of cock 9 provided with two symmetrical passages arranged similarly in each row is turned through 90 deg and passages of main and additional rows take position at which liquid from reservoir 1 enters metering reservoir 4 via pipe line 2 and respective passages and gas is forced out of this reservoir to atmosphere through pipe 7 and respective passages and branch pipe 26. EFFECT: enhanced accuracy of metering, simplified construction, enhanced reliability and ease in use. 3 dwg