发明名称 |
PACKER CUP |
摘要 |
A packer cup for sealing the interior of a pipe under pressure includes a first region of relatively soft material and a second region of relatively hard material. The region of the relatively softer material would begin at the lip of the cup and extend for at least one third the length of the cup up to the entire length of the cup.
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申请公布号 |
CA2643033(A1) |
申请公布日期 |
2009.08.04 |
申请号 |
CA20082643033 |
申请日期 |
2008.11.05 |
申请人 |
ASSOCIATED RESEARCH DEVELOPMENTS LTD. |
发明人 |
TEMPLETON, MATTHEW;TEMPLETON, BRIAN |
分类号 |
F16L7/02;E21B33/12;F16L39/00;F16L55/11;F16L55/13 |
主分类号 |
F16L7/02 |
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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