发明名称 Swimming pool anchor and removal tool
摘要 A fastener and removal tool adapted for manually securing and thereafter detaching two separate members in a preselected spatial relationship is disclosed. The fastener includes an elongate shaft, an abutment plate mounted on a first shaft end, and a collapsible head mounted on an opposing shaft end. The removal tool includes a plurality of elongate shafts positioned to be driven along the exterior surface of the fastener to apply a compression force along that shaft, thereby effecting a collapse of the shaft end sufficient to permit the retraction of the fastener from its engagement with the connected members.
申请公布号 US4953269(A) 申请公布日期 1990.09.04
申请号 US19890377235 申请日期 1989.07.07
申请人 COVER-POOLS, INC. 发明人 RAGSDALE, KELLY
分类号 B25B31/00;E04H4/10;F16B13/08 主分类号 B25B31/00
代理机构 代理人
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