发明名称 |
SCREEN ASSEMBLY AND A METHOD FOR MAKING A STRUCTURE FOR THE SCREEN ASSEMBLY |
摘要 |
A screen assembly for a shale shaker, the screen assembly including a support structure and at least one layer of screening material thereon. The support structure includes structural members having a thermal expansion coefficient and the at least one layer of screening material has a thermal expansion coefficient. The thermal expansion coefficient of the structural members is substantially equal to the thermal expansion coefficient of the at least one layer of screening material. A method for making a support structure for a screen assembly is also provided. The method includes placing at least one support member in a mold whereupon a flowable plastics material is injected into the mould, whereupon the flowable plastics material hardens, at least a portion of the flowable plastics material forming a brace. |
申请公布号 |
EP2667979(A2) |
申请公布日期 |
2013.12.04 |
申请号 |
EP20120700519 |
申请日期 |
2012.01.10 |
申请人 |
NATIONAL OILWELL VARCO, L.P. |
发明人 |
BURNETT, GEORGE, ALEXANDER |
分类号 |
B07B1/46;B01D35/28;B07B1/28;B29C45/14 |
主分类号 |
B07B1/46 |
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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