exit mouth 1152 across which is sealed or otherwise attached diaphragm 1154 having slits 1160 within collar 1156 is positioned cushion or applicator 1158 which may be cemented to the upper surface of diaphragm 1154 in all substantial respects the valve arrangement still can be almost identical with that shown in fig7 a and 7b when it is desired to project fluid from the flexible container the latter when squeezed will force the fluid against diaphragm 1154 axially opening up the slits 1160 as shown in fig7 b since the container is otherwise sealed upon release of squeezing pressure the restorative force of the diaphragm 1154 will cause it to return to its original position fig1 and the container will again be effectively sealed by closure of the valve in the form of invention shown in fig1 and 12 the initial cuts may not go through all the way see fig7 a to provide an initial seal to the container as previously described turning now to fig6 a simple method and apparatus are disclosed for providing angular slits in substantially planar diaphragms 12 112 212 312 810 and 1154 to make valves in accordance with the present invention specifically a mechanism is shown in fig6 for producing slits in diaphragms 12 112 212 312 810 and 1154 that are angled as in fig7 a and 7b the slitting apparatus of fig6 is.