Patent ID: 8858299

Claim:
A device for processing an edge of a blade, the device comprising: a housing defining a blade insertion opening for allowing the blade to be inserted from outside the housing into the housing through the blade insertion opening; and first and second edge processing rings mounted within the housing, the first and second edge processing rings having inner diameter surfaces suitable for processing the edge of the blade, the first edge processing ring being rotatable relative to the housing about a first axis and the second edge processing ring being rotatable relative to the housing about a second axis, the first and second axes being spaced-apart from one another, the first and second edge processing rings overlapping each other such that the inner diameter surfaces of the first and second edge processing rings form an inner blade processing notch, the inner blade processing notch being aligned with a blade insertion axis that extends though the blade insertion opening, the inner blade processing notch being configured to receive the blade when the blade is inserted through the blade insertion opening along the blade insertion axis, wherein when the blade is received within the inner blade processing notch while the first and second edge processing rings are rotated about their respective first and second axes, the edge of the blade engages and is processed by the inner diameter surfaces of the first and second edge processing rings.