Patent ID: 9724872
Date: 2017-08-08
CPC Classifications: B29C,F16L

Claim:
1. A method of rehabilitating a damaged section of pipe that obviates the need for a pre-formed, resin absorbent liner, the method comprising: inverting a bladder in the pipe; pumping a pumpable material through a dispensing member having a nozzle, wherein said pumpable material is capable of curing and hardening from ahead of an inverting face of the bladder toward the inverting face of the bladder; positioning the nozzle behind the inverting face of the bladder; while the bladder is inverting, dispensing the pumpable material from the nozzle rearward of the inverting face of the bladder between an exterior surface of the bladder and the damaged section of pipe and in contact with the pipe; compressing the pumpable material disposed between the bladder and the pipe; and allowing the pumpable material to cure.