초록 ▼

With a ring seal for apertures of multi-shell structures, especially of underground operations, by which a tubular sealing element after insertion into the ring aperture between shells of the structure and after introduction of a filler material into the sealing element with the required sealing pre

With a ring seal for apertures of multi-shell structures, especially of underground operations, by which a tubular sealing element after insertion into the ring aperture between shells of the structure and after introduction of a filler material into the sealing element with the required sealing pressure, which is applied to the bordering shell surfaces of the aperture, is provided, according to the invention, that the sealing element, consisting of at least one tubing with ends inserted into each other, upon insertion into the aperture with the excess of its periphery provided opposite the periphery of the aperture and through the shortening of the overlap of its ends in the aperture as well as the stretching of the sealing element is applied axially and radially.

대표청구항 ▼

[ What is claimed is:] [1.] A ring seal for a multi-shelled structure, the multi-shelled structure having shells separated by a ring aperture, the ring seal comprising:a tubular sealing element formed of a tubular casing of flexible material having a first end and a second end, the tubular casing fo

[ What is claimed is:] [1.] A ring seal for a multi-shelled structure, the multi-shelled structure having shells separated by a ring aperture, the ring seal comprising:a tubular sealing element formed of a tubular casing of flexible material having a first end and a second end, the tubular casing formed into a ring with the first end inserted into the second end to overlap the second end, the tubular sealing element being inserted into the ring aperture between shells of the structure; andfiller material introduced into the tubular sealing element with a sealing pressure, the filler material stretching the flexible material of the tubular sealing element, the tubular sealing element with filler material therein mating to shell surfaces bordering the ring aperture to apply a seal axially and radially between shells of the structure; rein the first end of the tubular casing is closed, and further comprising:one or more feeder fill valves through which filler material was introduced, the one or more feeder fill valves being located beyond the overlap of the ends.