Patent ID: 6929008
Filing Date: 2005-08-16
Classification: A61M

Abstract:
1. Carbon dioxide indicating apparatus, comprising: a tubular member providing a passageway for having gas containing carbon dioxide flow therethrough: a disk member including a base disk provided transversely at one end of said tubular member and a cover disk mounted to and covering said base disk, said base disk and said cover disk including opposed spaced apart central portions providing an internal chamber; a body of visual indicating material residing in said chamber for providing a visible indication upon exposure to the gas containing carbon dioxide; and said base disk providing a first opening in fluid communication with said passageway and for placing said indicating material in fluid communication with said passageway to expose said indicating material to the gas containing carbon dioxide and providing a second opening in fluid communication with the atmosphere and for placing said indicating material in fluid communication with the atmosphere, and at least a portion of said cover disk being sufficiently transparent to permit said visible indication to be seen therethrough.