Paul A Ivester, Jeffrey M Payne: Liquid trap with purge port. SpaceLabs Medical, Seed and Berry, May 11, 1993: US05209761 (5 worldwide citation)

A liquid trap for removing liquid such as condensed water vapor from gas in a patient's sampled airstream. The liquid trap includes a separation chamber that is used to separate the liquid from the gas. An opening in the separation chamber allows the liquid to flow into a collection chamber where it ...