| 发明名称 |
Protection ring for limiting the width of cracks in a storage tank wall |
| 摘要 |
Large openings in a storage tank wall caused by cracks appearing therein are prevented by surrounding such wall with a plurality of rings which are spaced apart from the wall to be structurally independent of that wall. Such structurally independent rings are not susceptible to stressing forces exerted on the wall.
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| 申请公布号 |
US4308967(A) |
申请公布日期 |
1982.01.05 |
| 申请号 |
US19800149859 |
申请日期 |
1980.05.22 |
| 申请人 |
PITTSBURGH-DES MOINES CORPORATION |
发明人 |
VATER, RICHARD A.;TERLESKY, JOHN |
| 分类号 |
B65D8/10;B65D90/02;F17C3/02;F17C13/12;(IPC1-7):B65D8/10;B65D90/00 |
主分类号 |
B65D8/10 |
| 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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