Micro delivery valve

Details Micro delivery valve Micro delivery valve

1991-09-30

1993-07-27

Kashnikow, Andres

Dispensing

Resilient wall

Supply container delivering to receiving chamber

222212, 222309, 222335, G01F 1106

Patent

active

052304450

ABSTRACT:
A pistonless device for metering a quantity of fluid from a source of fluid under pressure to a delivery line at a lesser pressure comprises a valve body defining a fluid flowpath, and including a fluid accumulator in fluid communication with the flowpath. An inlet valve upstream of the accumulator, and an exhaust valve downstream of the accumulator, are operated alternately in such a way that at most one of said valves is open at a time, so that positive metering displacement results.

REFERENCES:
patent: 3162324 (1964-12-01), Houser
patent: 3162336 (1964-12-01), Erickson
patent: 3194448 (1965-07-01), Theall
patent: 3207384 (1965-09-01), Wall
patent: 3294290 (1986-12-01), Erickson et al.
patent: 4863066 (1989-09-01), Liffenheimer et al.
patent: 4957220 (1990-09-01), Du

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