发明授权
- 专利标题： Reinforced corner for waterbed mattress
- 专利标题（中）： 水床垫的加固角
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申请号： US260452申请日： 1988-10-20
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公开(公告)号： US4914761A公开(公告)日： 1990-04-10
- 发明人: Dennis Boyd
- 申请人： Dennis Boyd
- 专利权人： Dennis Boyd
- 当前专利权人： Dennis Boyd
- 主分类号： A47C27/08
- IPC分类号： A47C27/08
摘要：
An improved corner for a waterbed mattress includes a first layer of vinyl forming the corner with a seam disposed generally linearly along the corner. The seam is formed of two portions of the vinyl heat welded together along the seam. A second layer or patch of vinyl is welded to the first layer by a weld which encircles and is spaced from the seam in the first layer.