发明名称 |
Machine and method for forming tubes from a strip |
摘要 |
The method of forming tubes from strip in which a complementary rib and groove are spaced apart to each extend longitudinally on the strip and oppositely facing on the said strip characterized by guiding the strip into a helical configuration to overlap the edges of the said strip, and pressing together the overlapping parts of the said strip while maintaining a differential pressure in the direction of feed to force the strip together under such differential pressure.
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申请公布号 |
US4337564(A) |
申请公布日期 |
1982.07.06 |
申请号 |
US19790080044 |
申请日期 |
1979.09.28 |
申请人 |
RIB LOC HONG KONG LIMITED |
发明人 |
MENZEL, STANLEY W. O.;MOMINEE, DAVID E.;VANCE, GILBERT W. |
分类号 |
B21C37/12;B29C53/72;B29C53/78;B29C53/82;(IPC1-7):B23P11/02 |
主分类号 |
B21C37/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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