Liquid dispensing system

Details Liquid dispensing system Liquid dispensing system

1976-07-09

1977-12-13

Knowles, Allen N.

Dispensing

Processes of dispensing

222148, B67D 108

Patent

active

040624722

ABSTRACT:
A system for accurately mixing two or more liquids and for dispensing the mixture. The system is generally adapted for use in paint spraying operations. The flow of one of the components is accurately measured by means of a flow meter and the measured value provides a signal to control a valve which, in turn, controls the flow of the other liquid. Periodically the volume of the first mentioned liquid is measured for a given time period so as to make necessary adjustments in the flow meter-valve interconnection. An improved arrangement is provided for purging a mixing manifold immediately prior to the completion of the dispensing cycle so that none of the mixture will be wasted. The control arrangement includes improved air operated two and three-way valves.

REFERENCES:
patent: 1526001 (1925-02-01), La Rue
patent: 1915728 (1933-06-01), Gabler
patent: 3049267 (1962-08-01), Edwards et al.
patent: 3212676 (1965-10-01), Trumbull et al.
patent: 3876114 (1975-04-01), Hicks et al.

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