发明名称 |
Non-metallic hatch apparatus |
摘要 |
The present invention provides a hatch apparatus comprising: (a) a non-metallic base having a base flange which is connectable to a container flange by bolting and (b) a non-metallic lid which is threadedly connectable to the non-metallic base. The inventive hatch apparatus can also include a pressure relief device associatable with the non-metallic lid. In one embodiment, the non-metallic lid comprises a single lid member. In a second embodiment, the non-metallic lid comprises two lid members. The inventive hatch apparatus is highly corrosion resistant and convenient to use.
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申请公布号 |
US5353944(A) |
申请公布日期 |
1994.10.11 |
申请号 |
US19920932388 |
申请日期 |
1992.08.19 |
申请人 |
HALLIBURTON COMPANY |
发明人 |
DAVIS, GAIL F.;MATTHEWS, JAMES F. |
分类号 |
B60P3/22;(IPC1-7):B65D51/16 |
主分类号 |
B60P3/22 |
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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