专利名称：Improvement in and relating to seals发明人：Burgess, George Henry申请号：EP313447.8申请日：191221公开号：EP03727A1公开日：19900627
专利附图：
摘要：A gap between tunnel segments 1 is sealed by rubber sealing members 8 thatare provided with grooves 10 and tubular cavities 11. To improve sealing when a highpressure is applied to one side of the seal, at least one cavity nearest that side is open tothe high pressure through apertures 12.
申请人：C.E. HEINKE & COMPANY LIMITED
地址：2-4 Victoria Street Windsor Berkshire SL4 1EN GB
国籍：GB
代理机构：Blanco White, Henry Nicholas
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