发明名称 |
METHOD OF MANUFACTURING REINFORCED PLASTIC DRAINAGE COVERS AND REINFORCED PLASTIC DRAINAGE COVER OBTAINED THEREBY |
摘要 |
A method of fabricating a solid drain cover wherein a plurality of reinforcement layers are inserted into a mold cavity and an unhardened polymer is injected into the mold cavity to surround the reinforcement layers. Each of the reinforcement layers includes a plurality of fiber strands positioned to extend across the mold cavity and are spaced by a predetermined distance. The reinforcement layers are attached to at least one layered spacer which is interposed between adjacent reinforcement layers. The drain cover is produced when the polymer has hardened in the mold cavity with the reinforcement layers and layered spacers embedded therein. |
申请公布号 |
PL188264(B1) |
申请公布日期 |
2005.01.31 |
申请号 |
PL19980341203 |
申请日期 |
1998.12.08 |
申请人 |
DEBERGH LUDO |
发明人 |
DEBERGH LUDO |
分类号 |
B29C70/20;B29C70/48;E02D29/14 |
主分类号 |
B29C70/20 |
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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