发明名称 Spring type paper cushion
摘要 A spring type paper cushion having a columnar body, at least four cushioning recesses, at least four projections and a receiving portion. The columnar body has a columnar wall and an axis. The cushioning recesses and the projections are formed on the columnar wall. The projections are respectively located between two of the cushioning recesses. The receiving portion is recessed into the columnar wall and is located at one of the cushioning recesses. The receiving portion has two receiving mountain-fold lines, two slits and a bottom. The slits are cut so that the two receiving mountain-fold lines can be folded allowing the bottom to sink into the body.
申请公布号 US7866479(B2) 申请公布日期 2011.01.11
申请号 US20090432157 申请日期 2009.04.29
申请人 FAN YU-HAN 发明人 FAN YU-HAN
分类号 B65D81/02;B65D85/30 主分类号 B65D81/02
代理机构 代理人
主权项
地址