Patent ID: 7481392

Claim:
A core adapter, comprising: (a) a hollow cylindrical sleeve having opposed outward and inward ends; (b) a plurality of radial apertures formed in the sleeve, each radial aperture extending substantially perpendicular to a longitudinal axis of the sleeve; (c) a sharp stud in each one of the radial apertures, each stud having: (i) a tip recessed beneath an outer cylindrical surface of the sleeve; (ii) a longitudinal axis substantially perpendicular to the longitudinal axis of the sleeve; (d) the sleeve: (I) having an outside diameter sized for insertion into a first roll core having a first inside diameter; (ii) having an inside diameter substantially equal to a second inside diameter of a second roll core, the first inside diameter being larger than the second inside diameter, the inside diameter of the sleeve for receiving a core chuck; and (iii) being non-apertured between and through the outward and inward ends and between the outside and inside diameters in a direction substantially parallel to the longitudinal axis of the sleeve.