G - Physics – 01 – L
Patent
G - Physics
01
L
73/129, 73/76
G01L 7/00 (2006.01) G01N 7/14 (2006.01) G01N 29/024 (2006.01)
Patent
CA 1149636
ABSTRACT OF THE DISCLOSURE The pressure of a heated fluid is reduced in a test chamber. A small vent in the upper portion of the test chamber receives a stream of liquid from the chamber and yields a steady hiss when the fluid in the test chamber is under sufficient pressure to maintain the fluid solely in the liquid phase and it yields a sputtering hiss sound when the pressure in the test chamber is reduced sufficiently to permit steam and/or gases to coexist with the liquid in the chamber thus permitting liquid plus vapor to enter the vent. The change in sound may be used to alert an operator and/or pressure fluctuations in the test chamber may be automatically monitored to produce an output signal or a feedback signal for automatic control.
371993
Gowling Lafleur Henderson Llp
Michels Donald E.
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