发明名称 Portable telescoping tower assembly
摘要 A portable telescoping tower assembly. The assembly includes a tower mounted on a trailer wherein the tower includes a plurality of telescoping sections that extend for use and retract and nest for storage and transportation. At least one cylindrical ram moves the tower between horizontal and vertical positions. A motor extends and retracts the plurality of sections. Each of the sections includes a plurality of external edges with each of the external edges including at least one protruding guide to mate with and receive an adjoining section.
申请公布号 US7574832(B1) 申请公布日期 2009.08.18
申请号 US20070626731 申请日期 2007.01.24
申请人 LIEBERMAN PHILLIP L 发明人 LIEBERMAN PHILLIP L.
分类号 E04H12/34;B66C23/06;E04H12/18 主分类号 E04H12/34
代理机构 代理人
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