Apparatus for measuring and dispensing chemical

Details Apparatus for measuring and dispensing chemical Apparatus for measuring and dispensing chemical

1977-12-02

1979-07-17

Aegerter, Richard E.

Fluent material handling, with receiver or receiver coacting mea

Filling or refilling of dispensers

137205, 141 59, 222442, B65B 304, B65B 3100

Patent

active

041611977

ABSTRACT:
The invention relates to apparatus for measuring and dispensing chemical, for use primarily in a closed system for preparation of chemical solutions or mixtures, and involves a container having an input passageway for connection to a source of chemical, and a discharge passageway for connection to a source of reduced pressure. The discharge passageway is normally blocked against discharge by a valve, but has communication with the upper region of the container, whereby, upon reducing the pressure at the discharge passageway, the pressure in the upper region of the container will likewise be reduced and cause an inflow of chemical into the measuring container. Upon subsequently lifting of the valve, means are provided for exposing the upper region to atmosphere pressure whereby, the contents of the container may discharge.

REFERENCES:
patent: 3913606 (1975-10-01), Anderson
patent: 3976087 (1976-08-01), Bolton et al.

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