Patent ID: 7784386

Claim:
A paper cutting apparatus including: a cylindrical cutting member with at least one closed-loop cutting ridge on its outer cylindrical surface; and a support member; wherein said cutting member is rotatable relative to said support member to move a piece of material relative to and between said cutting member and said support member to cut out part of said piece of material passing therebetween; wherein said cylindrical cutting member includes an outer tube having a hollow interior which receives an inner reinforcement member; and wherein said reinforcement member has two diametrically opposed fingers engaged with two recesses on an interior surface of said tube, said tube and said reinforcement member being engaged with each other for simultaneous rotational movement; wherein said support member has an interior cavity which receives a reinforcement member; and, wherein said support member further includes an outer tube, and wherein said reinforcement member of said support member has two diametrically opposed fingers engaged with two recesses on an interior surface of said outer tube of said support member, said tube and said reinforcement member being engaged with each other for simultaneous rotational movement.