Fluid handling – With indicator – register – recorder – alarm or inspection means – Inspection means
Patent
1974-06-24
1976-02-17
Schwadron, Martin P.
Fluid handling
With indicator, register, recorder, alarm or inspection means
Inspection means
137604, 239 74, 239318, 2394165, G01N 120, G01N 2102
Patent
active
039385507
ABSTRACT:
A solution dispensing proportioner utilizing a varyingly pressurized solvent and a solute having a vagrant negative gauge pressure and a tracer that is detectable in proportion to its concentration. The proportioner aspirates the solute and tracer through a conduit, which may have metering flow valves ahead of the confluence in one embodiment, and then for a progressive check of the proportion of the solution after confluence by comparing the light transmissivity of the inflowing solute and the outflowing solution, respectively. The viewing is through windows in close proximity to each other where the relative depths of the flowing streams of solute and solution, as viewed, are substantially inversely proportional to the desired percentage of solute in the solution as corrected for a null point traverse by adjusting the solute valve to provide the ratio desired for the solute and solvent in the final solution. The tracer supply is variable to optimize the null point appraisal,
REFERENCES:
patent: 2680446 (1954-06-01), Bendler
patent: 2949130 (1960-08-01), Knight et al.
patent: 2979066 (1961-04-01), Christie
patent: 3323484 (1967-06-01), Minkin et al.
patent: 3538714 (1970-11-01), Kling et al.
patent: 3724957 (1973-04-01), Tamate et al.
patent: 3740156 (1973-06-01), Heiyl
Harbaugh Watson D.
Miller Robert J.
Schwadron Martin P.
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