A tubular liner (10) for a pipe is collapsed on itself to define a pair of lobes (22). The lobes are folded into a central region (26) so that bending modulus and radius are reduced. The liner (10) can be stored in a tighter coil and can be introduced into an underground pipe to be lined at a more acute angle.
申请公布号
WO9510006(A1)
申请公布日期
1995.04.13
申请号
WO1994GB02117
申请日期
1994.09.29
申请人
ANGUS FIRE ARMOUR LIMITED;RODRIGUEZ, ALAN;ROSE, JOHN, ARTHUR