发明名称 Playground play surface
摘要 A unique playground play surface that is safe and suitable for use by physically challenged individuals and those that require the assistance of wheelchairs or other devices. The playground play surface consists of a base layer, a covering layer, a bag layer, a loose particles layer, and a top layer. The bag layer consists of a plurality of bags each filled with loose or shredded rubber. The bags are aligned side by side forming a single layer of rows and columns. A retaining border defines the playground play surface and contains the layers.
申请公布号 US6966841(B1) 申请公布日期 2005.11.22
申请号 US20040900796 申请日期 2004.07.28
申请人 SHERMAN ELAINE 发明人 SHERMAN ELAINE
分类号 A63C19/10;A63G31/00;(IPC1-7):A63C19/10 主分类号 A63C19/10
代理机构 代理人
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