Patent attributes
Provided are articulating, rotating pipe bursting head devices for bursting a buried pipe and simultaneously pulling a replacement pipe through the same location. The bursting heads can comprise an integrated, substantially hollow cone body having one or more cutting knives arranged radially about its outer surface, and an end cap at its posterior end. Protruding from the posterior end of the end cap is a swiveling quick release coupling means for linking the bursting head to a replacement pipe carrier such as a universal duct puller. The swiveling quick release coupling means allows for rotation and articulation of the replacement pipe relative to the bursting head during operation, enhancing entry of the replacement pipe into an existing pipe underground. The bursting head body further can comprise an axial opening at its anterior end for receiving a cable, an internal magnetized cable gripping mechanism and a quick-release tool.
