发明名称 Concrete water drainage pipe - consists of lengths joined end-to-end with sealing ring between end faces
摘要 The concrete water drainage pipe is constructed from lengths of pipe joined end-to-end with a sealing ring fitted between the joint faces. Each length of pipe (1)has a guide ring (4) projecting from one end and firmly fixed to the concrete. This guide ring (4) guides the elastomeric selaing ring (6) and the next length (1') of concrete pipe into position as the two lengths (1,1') are placed end to end. The axial length of the sealing ring (6) is such that it extends to the portion of reduced dia. of the adjoining length of pipe (1'). The guide ring (4) extends beyond the end of the sealing ring (6). USE - Concrete water drainage pipes.
申请公布号 DE3941884(A1) 申请公布日期 1991.06.20
申请号 DE19893941884 申请日期 1989.12.19
申请人 HERMANN MUECHER GMBH & CO KG, 5830 SCHWELM, DE 发明人 MUECHER, HORST ADOLF, 5830 SCHWELM, DE
分类号 E03F3/04 主分类号 E03F3/04
代理机构 代理人
主权项
地址