Patent ID: 9067038
Filing Date: 2015-06-30
Classification: A61M,A62B,F16K

Abstract:
1. A safety valve system connecting a source of low pressure therapeutic gas to a flexible tube for dispensing the low pressure therapeutic gas through said flexible tube to a patient or other person, said safety valve system comprising: a valve body of rigid material and defining a gas inlet and a gas passage, a valve member of rigid material and supported within said valve body for linear movement on an axis, said valve member including an axially projecting tubular portion and defining a gas passage with an outlet port in said axially projecting tubular portion, said flexible tube having an end portion supporting a resilient coupling sleeve releasably connected by friction to said axially projecting tubular portion of said valve member, axially spaced annular gas seals carried by said valve member and engaging said valve body, said valve member movable axially within said valve body to an open position connecting said gas passage within said valve member between said axially spaced annular gas seals to said gas passage within said valve body in response to pushing said resilient coupling sleeve onto said axially projecting tubular portion of said valve member, and said valve member movable to a closed position where said gas passage within said valve member is blocked by said axially spaced annular gas seals from said gas passage within said valve body in response to pulling said resilient coupling sleeve from said axially projecting tubular portion of said valve member with a force overcoming said friction to remove said resilient coupling sleeve and said flexible tube from said axially projecting tubular portion of said valve member.