发明名称 |
COUPLINGS |
摘要 |
A corrugated cover is made up of a number of sections each formed from annular elements. An end element of a section is formed with a radial slot which extends inwardly from the outer periphery thereof and the other end element has a radial slot which extends outwardly from the inner periphery thereof. This slot arrangement permits rapid coupling together of the sections.
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申请公布号 |
US3642309(A) |
申请公布日期 |
1972.02.15 |
申请号 |
USD3642309 |
申请日期 |
1970.02.02 |
申请人 |
HENRY BEAKBANE FORTOX LTD. |
发明人 |
GERALD V. HORROBIN;JOHN F. HUTTON;PETER M. KNOWLES |
分类号 |
F16J3/04;(IPC1-7):F16L21/00 |
主分类号 |
F16J3/04 |
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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