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A filled and reclosable pressure vessel, in which a body is filled with a fluid, closed with a lid element (10, 100) and subjected to a heat treatment, with a lid surface (11, 110), and a closure (14) made of plastics as a lid element (10, 100), and at least one seal (16) arranged on the closure (14

A filled and reclosable pressure vessel, in which a body is filled with a fluid, closed with a lid element (10, 100) and subjected to a heat treatment, with a lid surface (11, 110), and a closure (14) made of plastics as a lid element (10, 100), and at least one seal (16) arranged on the closure (14), the lid element (10, 100) being arranged in such a way that the closure (14) faces the interior of the sealed pressure vessel, wherein the lid surface (11, 110) and the closure (14) are arranged in such a way that the lid surface (11, 110) has a first distance (a1) from a first reference plane (E1) which substantially extends through the at least one sealing surface (16a) on the first surface (111) of the lid surface (11, 110), and the closure (14) extends at a second distance from a second reference plane which extends through the at least one seal (16), with the first distance (a1) being chosen to be larger than the second distance.

대표청구항 ▼

1. A method for producing filled and reclosable pressure vessels, in which a vessel body with a cylindrical jacket and a bottom part is filled with a fluid, whereupon it is non-detachably closed with a lid element, with a lid surface and a closure means made of plastics being provided for use as a l

1. A method for producing filled and reclosable pressure vessels, in which a vessel body with a cylindrical jacket and a bottom part is filled with a fluid, whereupon it is non-detachably closed with a lid element, with a lid surface and a closure means made of plastics being provided for use as a lid element, the closure means being fastened to a first surface of the lid surface, and at least one seal arranged on the closure means being brought into contact with at least one sealing surface arranged on the first surface of the lid surface, and the lid element formed by the lid surface and the closure means being arranged upon closing the pressure vessel in such a way that the closure means faces the interior of the sealed pressure vessel wherein the lid surface and the closure means are arranged in such a way that in at least one partial area the lid surface has a first distance from a first reference plane which substantially extends through the at least one sealing surface on the first surface of the lid surface, and the closure means extends in at least one partial area at a second distance from a second reference plane which extends through the at least one seal, with the first distance being chosen to be larger than the second distance. 2. The method according to claim 1, wherein the closure means is arranged in a substantially circular manner, with the at least one seal being arranged in the circumferential region and the closure means sealing a part of the first surface of the lid surface after the sealing of the pressure vessel against the interior of the pressure vessel when the closure means is fastened to the lid surface. 3. The method according to claim 1, wherein the central region of the lid surface is provided with the maximum first distance from the first reference plane, with the lid surface being provided with an outwardly convex curvature prior to its connection with the closure means, which curvature leads to a superelevation of the middle region as compared to the edge in a range of between 1% and 5% of the diameter of the lid surface. 4. The method according to claim 3, wherein said range of superelevation is between 2% and 3%. 5. The method according to claim 1, wherein when fastening the closure means to the first surface of the lid surface, a portion of the closure means is arranged to be spaced from the lid surface, with said third distance decreasing in the course of a heat treatment performed after the closure of the pressure vessel. 6. The method according to claim 1, wherein the pressure vessel is subjected to a heat treatment subsequent to non-detachably closing the vessel body with the lid element. 7. The method according to claim 1, wherein the lid surface consists of metal.