Plural component controller

Details Plural component controller Plural component controller

1992-08-07

1994-11-29

Nilson, Robert G.

Fluid handling

Processes

With control of flow by a condition or characteristic of a...

13710121, G05D 1113

Patent

active

053680596

ABSTRACT:
This invention is useful in a plural component system which utilizes sequential metering of multiple fluids. In such a system for dispensing component fluids such as paint, the controller dispenses a given amount of a first fluid, and then part way through dispensing of the second fluid, calculates the amount of the second fluid required in view of the actual amount of the first fluid dispensed and then dispenses that amount. The desired tolerance maybe subtracted from the amount of second fluid dispensed so that the overrun which always takes place from the valves on the second fluid will place the mixture in the middle of the range for the dispensed fluid. During subsequent cycles, the ratio is checked in view of the actual amounts dispensed and an alarm set off if the actual ratio falls outside of tolerance.

REFERENCES:
patent: 3036585 (1962-05-01), Shawhan
patent: 3272217 (1966-09-01), Young
patent: 3474815 (1969-10-01), Beahm et al.
patent: 4006752 (1977-02-01), De Vale
patent: 4294277 (1981-10-01), Szeliga
patent: 4345612 (1982-08-01), Kondi et al.
patent: 4526188 (1985-07-01), Olsson
patent: 4681530 (1987-07-01), Huber
patent: 5029100 (1991-07-01), Young et al.

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