Sparger assembly
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Jan 14, 1992
Grant Date -
N/A
app pub date -
May 16, 1990
filing date -
May 16, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A sparge assembly including a integral frit can be used with a common test tube. The test tube is retained by a tube fitting on the bottom of an enclosure. An elongated purge gas tube passes through the enclosure and extends downward to terminate near the test tube bottom. The bottom end of the purge tube has a metal frit attached for discharge of received purge gas. Gas is collected from the enclosure with an outlet tube. A liquid input needle passes through the enclosure and terminates within near the test tube bottom. According to an alternate embodiment of the invention, the gas outlet tube is fitted with a bushing having an outer diameter for fitting into a host instrument's tube fitting. Preferably, the gas outlet tube exits out the top of the enclosure so that a liquid needle may pass through the gas outlet tube and into the test tube. An antifoaming test tube is made by coating the tube inside with a thin layer of antifoan agent, such as a silicone emulsion, and then baking the tube and coating to drive off any volatiles. The antiform tube is cooled and capped for later use.
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