发明名称 Felting needle
摘要 A felting needle having a wedge-like tip with an open double barb formed in the leading edge of the tip. The double barb includes a pair of opposed outwardly diverging fiber-engaging surfaces with precisely formed angles. One outwardly diverging barb angle extends to one side of the needle, and the other outwardly diverging barb angle is disposed symmetrically and diametrically opposite thereto. Unlike ordinary barbs formed in a lateral edge of a felting needle, the double-barb of the present invention allows fibers to slip off to either side of the needle and thus prevent fiber damage.
申请公布号 US4309800(A) 申请公布日期 1982.01.12
申请号 US19790063294 申请日期 1979.08.02
申请人 FOSTER NEEDLE CO. 发明人 FOSTER, EDSON P.
分类号 D04H18/00;(IPC1-7):D04H18/00 主分类号 D04H18/00
代理机构 代理人
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