| 摘要 |
PCT No. PCT/SE89/00038 Sec. 371 Date Aug. 3, 1990 Sec. 102(e) Date Aug. 3, 1990 PCT Filed Feb. 2, 1989 PCT Pub. No. WO89/07190 PCT Pub. Date Aug. 10, 1989.A method for sealing elongated hollow cavities (2), such as circular-cylindrical pipes, tubes, drill holes or the like, in which a body (1) is placed in the cavity in sealing contact with the inner surface (4) of the cavity. The method has at least one essentially annular, elastic sealing element (3) sealingly mounted in a radially and circumferentially extending gap present in the body (1) and which is caused to be urged radially outwards into sealing abutment with the inner surface (4) of the cavity (2), by means of pressure (p) applied internally of the body. There is also a device for carrying out the mehtod. |
