Filling and discharging valve for inflatable hollow bodies

A plastic filling and discharge valve for inflatable hollow bodies comprising a valve housing including an enlarged tapered radial flange capable of being fastened to the inflatable body, said housing further including a frustoconical generally concave centrally apertured valve seat having a predetermined diameter facing the interior of the inflatable member, a plate-shaped valve member having a depending continuous curvilinear peripheral skirt means larger than said predetermined diameter and forming a concave underside facing said interior of the inflatable hollow bodies and a convex upper surface for engaging said valve seat, a dead center spring having a holding ring (29) seated axially and secured in the valve housing (10), and holding means for holding the valve member in an opened position having a centrally located axially disposed rod (27), said rod (27) being connected to a central tubular reception portion (35) via a separable snap type connection, said dead center spring having flexible resilient arms (28) extending radially inward from said holding ring, integral with said tubular reception portion (35) and bent to an S-shape to bias the valve member (23) in the closed position.