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A composite pressure vessel for storing gaseous media under pressure, having a plastic liner two neck pieces arranged in the neck region, and a winding of a fiber composite material that reinforces the liner. In the neck piece that accommodates the valve there is provided a clamping ring which can b

A composite pressure vessel for storing gaseous media under pressure, having a plastic liner two neck pieces arranged in the neck region, and a winding of a fiber composite material that reinforces the liner. In the neck piece that accommodates the valve there is provided a clamping ring which can be screwed into the neck piece and has on the outer circumference a threaded section which is adjoined by a thread-free, frustoconical section. A groove is arranged between internally threaded sections of the neck piece to accommodate a sealing ring and extends radially into the neck piece. On the outside of the respective neck piece, in the region adjoining the collar, provision is made to arrange at least one bead which extends radially outward over the entire circumference.

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[ What is claimed is:] [1.]1. A composite pressure vessel for storing gaseous media under pressure, comprising: a plastic liner having two ends each with a neck; two neck pieces arranged in the neck region at each end of the liner; a winding of a fiber composite material that reinforces the liner, a

[ What is claimed is:] [1.]1. A composite pressure vessel for storing gaseous media under pressure, comprising: a plastic liner having two ends each with a neck; two neck pieces arranged in the neck region at each end of the liner; a winding of a fiber composite material that reinforces the liner, at least one of the neck pieces being configured to accommodate a screw-in valve having a thread, both neck pieces having a flat, frustoconical collar which is surrounded on an inner side by the liner and on an outer side by the reinforcing winding, each neck piece having an internally threaded section in a region facing the liner which interacts with an externally threaded section arranged on the neck of the liner, the neck piece that accommodates a valve having an internal thread-free region adjacent to the internally threaded section, which thread-free region has an annular groove and is adjoined by a further internally threaded section to accommodate the valve, the neck piece that accommodates the valve being provided with an external wrench attachment; a sealing element arranged in the annular groove; and a clamping ring screwed into the neck piece that accommodates the valve, the clamping ring having an outer circumference with a threaded section which is adjoined by a thread-free, frustoconical section, the annular groove arranged between the internally threaded sections of the neck piece to accommodate the sealing ring extending radially into the neck piece, each respective neck piece having at least one bead on an outer side in a region adjoining the collar, which bead extends radially outward over an entire circumference of the neck piece.