发明名称 Utility pole
摘要 A hollow, elongated, utility pole useful for supporting luminaires and the like and method of making same wherein an inner core section is formed by wrapping filaments, preferably continuous glass filaments treated in a bonding resin, at a relatively wide angle to the longitudinal axis of the pole to form a selected number of layers of filaments with alternate layers of filaments crossing one another in opposite directions. An outer core section of greater weight than the inner core section is formed on the inner core section by wrapping a selected number of relatively narrow bands of filaments, preferably continuous glass filaments treated in a bonding resin, at a relatively slight angle to the longitudinal axis of the pole with alternating bands of filaments crossing each other in opposite directions. The wrapped layers of filaments are heated at a preselected temperature after wrapping for curing to form a rigid structure.
申请公布号 US3896858(A) 申请公布日期 1975.07.29
申请号 US19730336724 申请日期 1973.02.28
申请人 WHATLEY, WILLIAM J. 发明人 WHATLEY, WILLIAM J.
分类号 B29C53/58;E04H12/02;F21V21/10;(IPC1-7):F16L11/02 主分类号 B29C53/58
代理机构 代理人
主权项
地址