Patent ID: 8438956

Claim:
A torque-indicating driver comprising: a handle configured to receive applied torque; two or more substantially flat torsion springs coupled to the handle, the two or more substantially flat torsion springs constructed from a flexible material configured to angularly deflect elastically in response to the applied torque; a housing that couples the two or more substantially flat torsion springs to the handle, the housing having two or more slots that each receive a proximate end of a respective substantially flat torsion spring and prevents rotation of the proximate end with respect to the handle; a torsion rod coupled to the two or more substantially flat torsion springs, the torsion rod also constructed from a flexible material configured to angularly deflect elastically in response to the applied torque; a coupling that couples the two or more substantially flat torsion springs to the torsion rod, the coupling having two or more slots that each receive a distal end of a respective substantially flat torsion spring and prevents rotation of the distal end with respect to the torsion rod; a bit or socket located at a distal end of the torsion rod and configured to impart torque on a load; and at least one indicator configured to indicate a torque level imparted on the load.