초록 ▼

A positive pressure demand regulator having a housing with a connection for delivering breathing gas with an outlet connected to the housing for attachment to a mask. A diaphragm is mounted in the housing and a passage connects the outlet and the diaphragm so that the diaphragm can be in fluidically

A positive pressure demand regulator having a housing with a connection for delivering breathing gas with an outlet connected to the housing for attachment to a mask. A diaphragm is mounted in the housing and a passage connects the outlet and the diaphragm so that the diaphragm can be in fluidically connected relationship to the outlet. A main valve interconnects the breathing gas connection to the outlet for valving breathing gas to the outlet. A cam is attached to the diaphragm for lifting the diaphragm into an inoperative mode with a detent connected to the cam operated by a cam rod engaging a cam surface to lift the detent into a position for placing the detent in displaced relationship from where the diaphragm is in an operative mode, mounted in the housing on the side of the diaphragm opposite from the outlet.

대표청구항 ▼

In a pressure demand regulator having means for delivering breathing gas to a housing and an exit conduit connected to said means for delivering gas to said housing with valve means interconnecting said gas delivery means to said exit conduit and a spring biased diaphragm in fluid connected relation

In a pressure demand regulator having means for delivering breathing gas to a housing and an exit conduit connected to said means for delivering gas to said housing with valve means interconnecting said gas delivery means to said exit conduit and a spring biased diaphragm in fluid connected relationship to said exit conduit operatively connected to said valve means for providing valving of breathing gas therethrough to said exit conduit the improvement comprising: connector means connected to said diaphragm having detent means thereon and a sloping surface; a cam means for radially engaging said sloping surface of said connector means for lifting said detent means connected to said diaphragm into a detent engagement with a protuberance in said housing so that when said detent means is lifted by said cam means, it disconnects said diaphragm from said valve means.