Sensing pump with improved discrimination between liquids and ga

Details Sensing pump with improved discrimination between liquids and ga Sensing pump with improved discrimination between liquids and ga

1986-08-25

1988-05-31

Levy, Stewart J.

Measuring and testing

Liquid analysis or analysis of the suspension of solids in a...

Content or effect of a constituent of a liquid mixture

137391, 251118, G01N 700

Patent

active

047473002

ABSTRACT:
A sensing pump for discriminating between liquids and gases. The pump includes a plunger which is reciprocably moved by a succession of repetitive actuation of known force and time characteristics. The response of the plunger, acting against the fluid is indicative of the quality of the fluid (liquid, gas, or vapor). An orifice is provided in the system which in effect eliminates liquid viscosity as a determinant, and makes the system responsive instead to a mass-transfer regime. This increases the discriminatory capability of the system.

REFERENCES:
patent: 3476128 (1969-11-01), Barker
patent: 4376449 (1983-03-01), Nelson et al.
patent: 4496287 (1985-01-01), Nelson et al.

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