发明名称 Method for manufacturing a display portion thereof
摘要 A portable sign, and method for manufacturing a display portion thereof, useful on highway construction projects for alerting motorists to road repairs, hazards, and the like, that is arranged to be easily erected or taken down, with component parts that can be broken down and telescoped within a tubular mast thereof, facilitating handling and storage. The portable sign incorporates: a base, that is formed to receive a ballast material therein; a tubular mast for releasable coupling to that base; a cap for installation on top of the mast; a cross arm that can be installed to approximately a midpoint of the mast, extending across the mast at a normal angle thereto, and a display portion. The erected mast and cross arm support the sign display portion having a background formed from an open weave or perforated section of material having secured thereon, single or multiple letters, numbers, symbols, characters, or the like, the sign display portion being maintained across the erected mast and cross arm by installation of hooks attached thereto, into holes formed appropriately in that mast and cross arm.
申请公布号 US4019271(A) 申请公布日期 1977.04.26
申请号 US19750619796 申请日期 1975.10.06
申请人 LATIMER, KENNETH JAMES 发明人 LATIMER, KENNETH JAMES
分类号 E01F9/012;G09F15/00;(IPC1-7):G09F7/00 主分类号 E01F9/012
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