| 发明名称 |
Utility pole crossarm, crossarm assembly, and method of manufacture |
| 摘要 |
A utility pole crossarm assembly includes a crossarm comprising a plastic base material with fiber reinforced plastic fill material and a foaming agent. The crossarm is adapted for bolting on a utility pole and for being supported thereon by a pair of diagonal cross braces.
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| 申请公布号 |
US6367226(B1) |
申请公布日期 |
2002.04.09 |
| 申请号 |
US19990306506 |
申请日期 |
1999.05.06 |
| 申请人 |
PETROFLEX N.A., INC. |
发明人 |
SHAUF, SR. MITCHELL EARL;ROSS RONALD L. |
| 分类号 |
E04C3/29;E04H12/24;(IPC1-7):E04C3/30 |
主分类号 |
E04C3/29 |
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