Gas release device for use with laboratory glassware

摘要

A gas release device for airtight connection with the mouth of an article of laboratory glassware having a mouth for sealing the article against the entry of air from the ambient while permitting the escape of gases generated in the article comprises a fitting means for effecting an airtight seal with the mouth of the article of laboratory glassware, check valve means for preventing the entry of air from the ambient and permitting the escape of gases generated in the article and conduit means communicating between the fitting means and the check valve means.