发明名称 A sealing and protective device for pipes.
摘要 <p>A sealing and protective device for pipes adapted to be moulded into a substantially cylindrical surface portion of the pipe in the area of an end portion thereof in connection with the moulding of the pipe. The sealing and protective device comprises a radially projecting sealing portion (10) and a protective element (20) positioned axially inside the sealing portion in relation to the end surface of the pipe end portion. The sealing portion (10) is adapted to seal the pipe in relation to an end portion of another pipe concentrically positioned in relation to the end portion of the pipe. The protective element (20) is adapted to prevent access of dirt and water to the area axially inside the sealing portion during transportation and storage of the pipe and is adapted to be removed before the pipe is connected with an other pipe. The sealing portion (10) and the protective element (20) are connected with each other so as to provide a connected unit already before the sealing and protective device is moulded into the end portion of the pipe.</p>
申请公布号 EP0358256(A1) 申请公布日期 1990.03.14
申请号 EP19890202113 申请日期 1989.08.18
申请人 FORSHEDA AB 发明人 NORDIN, OLOF
分类号 F16L17/00;B28B21/56;B28B21/74;F16L21/03;F16J15/10;F16L21/02 主分类号 F16L17/00
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