Patent ID: 7222751

Claim:
A collapsible tube head comprising a neck fitted with a port and a shoulder that will connect the neck to the tube, the head being fitted with a valve inserted in the neck of the collapsible tube, the valve comprising a sealing means associated with a ring support provided with an opening, the sealing means being held in a closed position of the opening when the tube is not compressed and in an open position when the tube is compressed, a lower part of the neck being provided on its inner surface with a bore coaxial with the neck on which the ring support is fixed, the thickness of the lower part of the neck facing the bore remaining approximately equal to or greater than the average thickness of the neck, wherein the ring support is a hollow body in which a sealing element is at least partially inserted, the sealing element consisting essentially of the sealing means connected to a ring through elastically deformable support elements, the ring having a bore providing a passage for the product to be distributed, the ring and the deformable support elements being constructed and arranged to keep the sealing means in the closed position when the tube is not compressed and to enable the sealing means to be in the open position when the tube is compressed, the ring being at least partially inserted in the bore of the hollow body and fixed to the bore of the hollow body by means of complementary fixing means located adjacent the open end of said hollow body.