Liquid dispensing apparatus and method by sensing the type of liquid vapors in the receiver
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United States of America Patent
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May 11, 1993
Issued Date -
N/A
app pub date -
Aug 28, 1991
filing date -
Jul 9, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to a liquid dispensing apparatus which includes a detecting element for detecting the liquid from the vaporized gas surrounding the remaining liquid in a storage tank to be supplied, where the detecting element is disposed at the output end of a liquid supply line, and a discriminator for discriminating the signals and information obtained from such a detecting element. The discriminator generates a lock signal to be fed to a locking means for allowing suspension of the supply of liquid based on a signal generated in the discriminator and fed to the locking means. The detection element includes a first electrode, a second electrode, a gas-sensing member connected to the first electrode and connected to the second electrode, which gas-sensing member is formed of a resin material including a conducting material which furnishes an impedance change upon contacting the vaporized gas of the liquid to be detected.
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