发明名称 SPRING/SEAL ELEMENT
摘要 The present invention relates to a spring element. The spring element includ es a metal ring with a central aperture and radial pleats formed on the metal ring. The radial pleats flatten when pressure is applied axially to compress the ring such that the metal ring increases in effective diameter. The seal element may be used to radially seal an annular bore.</SD OAB>
申请公布号 CA2579111(A1) 申请公布日期 2007.08.17
申请号 CA20072579111 申请日期 2007.02.16
申请人 INNICOR SUBSURFACE TECHNOLOGIES INC. 发明人 KUNZ, DALE IAN
分类号 E21B33/128;B21D13/10;B21D53/00;F16F1/34 主分类号 E21B33/128
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