Who invented the O'Donnell woodturning chuck jaws?

The O'Donnell woodturning chuck jaws were invented by John O'Donnell, a woodturner and inventor known for his innovative designs in woodturning tools. His chuck jaws are recognized for their unique features that enhance the versatility and functionality of woodturning chucks. O'Donnell's contributions have significantly impacted the woodturning community, providing turners with more efficient and effective ways to hold workpieces.