Shuttoff valve device

Claim 1

A fluid shuToff valve device for use with an inflatable fluid container, adapted to maintain normal fluid tight conditions in said container and to permit introduction into and discharge of fluid from the container, comprising: a. a flexible tubular member (18) for direct connection with the fluid container; b. a hollow tubular cover (20) having an annular recess (21) in its inner wall; c. a body (12) of elastomeric material having a peripheral annular flange for insertion into said recess (21), and a base portion (16) for insertion into an end (19) of said flexible tubular member 18, said body (12) having a truncated conical bore (14), extending axially into said body, the smaller end of which communicates with a valve channel (17) extending through the base portion (16) and communicating with said flexible tubular member; and d. a ring member (23) adapted to fit snugly round the outside of flexible tubular member (18) below the location of the base portion (16) inside said tubular member, said ring member (23) being maintained in position by a recess (24) in said ring member engaging a rib member (22) extending from the inner wall of the hollow tubular cover (20); whereby the pressure of fluid in said inflatable container acts on the elastomeric material of body (12) to automatically close said valve channel (17) and maintain fluid tight conditions, said valve channel (17) being opened when desired to permit introduction or discharge of fluid by inserting a syringe adapter into said conical bore (14).