Patent ID: 8197158
Filing Date: 2012-06-12
Classification: F16L,Y10T

Abstract:
1. A method of sealing a service entrance in a conduit prior to installation of a rehabilitative liner in the conduit comprising: maneuvering a remote controlled robot to a service entrance in the conduit, wherein the robot includes a plug dispensing magazine for storing and dispensing service entrance plugs installed thereon, a plug insertion tool and an injection device combined with the plug insertion tool, wherein the plugs include a core body having a central hollow channel, at least two longitudinally spaced apart flexible fins extending radially outwardly from the core body and, vent holes disposed on the core body in between the flexible fins; with the plug insertion tool, releasing a plug from the magazine and inserting the plug into the service entrance; with the injection device, injecting sealing material into the plug in order to seal the service entrance without having to change a position of the plug insertion tool; and curing the sealing material.