Patent ID: 6186785
Filing Date: 2001-02-13
Classification: A61C,B25B

Abstract:
A dental ratchet wrench for applying torque to a fastener that is used in a dental prosthesis, comprising:a housing;a drive member located within said housing;a slip clutch spring coupled to said housing and said drive member, said slip clutch spring causing said drive member to rotate with said housing when said housing is rotated in one direction, said slip clutch spring causing said drive member to rotate relative to said housing when said housing is rotated in the opposite direction; a rotor coupled to said drive member via a straight coil torsion spring, said rotor including means for receiving a tool for rotating said fastener; andtorque indicators on at least one said drive member and said rotor at known angular positions corresponding to predetermined torque values, said torque indicators progressively illustrating the amount of torque being exerted by said rotor.