发明名称 U-shaped tubular metal for rope chains
摘要 A rope chain formed by intertwining links of a U-shaped cross-section is disclosed, which links are formed from a wire having an interconnecting upper portion, a pair of substantially straight legs extending downwardly from the interconnecting portion, and a substantially open bottom portion or seam opposite said interconnecting portion. The substantially straight legs, results in a rope chain having a full-bodied appearance and a snugger interfit between intertwined chain links. The U-shaped configuration can produce a rope chain that uses less precious metal than if the cross-section of the wire were annular and the links themselves were of annular, toroidal configuration.
申请公布号 US6237318(B1) 申请公布日期 2001.05.29
申请号 US20000484723 申请日期 2000.01.18
申请人 CHARM LINK, INC. 发明人 KAHAN MARVIN
分类号 A44C11/00;B21L11/00;B21L99/00;(IPC1-7):B21L5/02 主分类号 A44C11/00
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