发明名称 Helical tube recreational component
摘要 A one-piece helical tube component for use in forming spiral or helical playground units is disclosed. The helical tube component includes an interconnected series of helical tube segments each having a constant predetermined diameter and slope. Complementary male and female tube segments are provided adjacent opposite ends of the interconnected series of helical tube segments for corresponding mating engagement with complementary male and female tube segments of another similarly formed helical tube component.
申请公布号 US5711744(A) 申请公布日期 1998.01.27
申请号 US19960659175 申请日期 1996.06.05
申请人 SOFT PLAY, L.L.C 发明人 STRAWCUTTER, GRANT M.;DUNN, JR., JAMES O.;BROOKS, JONATHAN E.
分类号 A63B9/00;(IPC1-7):A63B9/00 主分类号 A63B9/00
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