Patent ID: 7191673
Filing Date: 2007-03-20
Classification: F16L,G01N

Abstract:
1. An apparatus for inspecting a lateral conduit from a main conduit by extending and retracting a push rod into the lateral conduit, the apparatus comprising: a frame; a push rod transport motor mounted to the frame; an upper push rod drive assembly including an upper track; a plurality of upper attachments mounted to the upper track for engaging the push rod; a lower push rod drive assembly including a lower track; a plurality of lower attachments mounted to the lower track for engaging the push rod; a drive coupling for coupling the push rod transport motor to the upper and lower push rod drive assemblies; an upper slide bar mounted to the frame, wherein the upper slide bar includes an upper pressure surface for pressing at least some of the upper attachments against the push bar; and a lower slide bar mounted to the frame, wherein the lower slide bar includes a lower pressure surface for pressing at least some of the lower attachments against the push bar.