发明授权
- 专利标题： Plastic pipe sealing gasket and process for belling plastic pipe
- 专利标题（中）： 塑料管密封垫圈及吹塑管道工艺
-
申请号： US12134581申请日： 2008-06-06
-
公开(公告)号： US08074996B2公开(公告)日： 2011-12-13
- 发明人: Gerardo Darce , Randall Chinchilla
- 申请人： Gerardo Darce , Randall Chinchilla
- 申请人地址： US TX Fort Worth
- 专利权人： S & B Technical Products, Inc.
- 当前专利权人： S & B Technical Products, Inc.
- 当前专利权人地址： US TX Fort Worth
- 代理商 Charles D. Gunter, Jr.
- 主分类号： F16L21/02
- IPC分类号： F16L21/02 ; F16L17/03
摘要：
An sealing gasket is shown for use in forming joints of plastic pipe. The gasket has a bulbous region which is bisected by a planar region which forms a pair of oppositely extending wing-like flaps. These features of the gasket allow it to be more reliably seated on the working mandrel used to bell a female, thermoplastic pipe end. The wing-like flap portions of the gasket form wiper surfaces for a subsequently installed male, spigot pipe end as the joint is formed.
公开/授权文献
信息查询
