Patent ID: 8443520

Claim:
A device for stripping sheathing on an unbonded post-tensioning tendon, comprising: an elongated tubular body for functioning as a grip, said body comprising a first through bore along a longitudinal axis of said body for passing said tendon; a cylindrical cutting head concentrically attached to said elongated body, said cutting head having a smaller diameter than said elongate body, said cutting head having a truncated distal end, and having a second through bore continuing uniformly through said cutting head along said longitudinal axis, contiguous with said first through bore, and exiting centrally through said distal end to define an annular face, said cutting head having an inner cylindrical surface defining said second through bore, an outer cylindrical surface, and a crescent notch defined by a secant passing through a first point and a second point radially spaced apart on said cutting head outer surface to define a hanging blade portion at said distal end of said cutting head, said hanging blade portion further comprising, a cutting edge extending substantially radially relative to said longitudinal axis, a blade backside protruding outward beyond the outer surface of said distal end, and a planar cutting face that is radially offset from said longitudinal axis and inclined at a pitch angle of between 45 and 85 degrees relative to said longitudinal axis for cutting said sheathing, whereby when said device is slid over and rotated about said tendon, the device helically cuts said sheathing into a resultant helical waste strip.