Patent ID: 7621505

Claim:
A process for making a line runner for conduit and installing line therein comprising the steps of: a) providing a flattened sleeve of flexible impervious or semi-pervious material, said material being impervious to substantial air leaks, and heat sealing said material in spaced apart transverse seals to create a bag shaped closed sleeve; b) cutting at least two gusset openings in one end of said sleeve; c) passing a securing line through two of said openings and fastening the line to itself after passing through said at least two gusset openings leaving a trailing portion of the line to be pulled through conduit, said line separating at least a portion of the edges of said opening to permit air to flow in and out of said sleeve; said line runner having no rigid members and requiring none; d) placing said sleeve in a conduit with the uncut end of the sleeve in the desired direction of motion; and, e) applying differential air pressure in the conduit whereby the sleeve will inflate and move in the direction of air flow pulling line with the sleeve through the conduit.