Tools – Wrench – screwdriver – or driver therefor – Responsive to torque on work
Reexamination Certificate
2006-09-19
2006-09-19
Thomas, David B. (Department: 3723)
Tools
Wrench, screwdriver, or driver therefor
Responsive to torque on work
C081S477000, C073S862210
Reexamination Certificate
active
07107883
ABSTRACT:
The invention relates to a screw-driving tool for implant screws having an elongate handle (2) and having a bar-shaped tool which is anchored in the elongate handle (2). An elastic, hollow spiral (10) is provided for the transmission of a predetermined torque, with a bar (3) being guided through the spiral (10) and being fixedly connected to the rotatable side of the spiral and indicating a rotational angle or a torque respectively at the opposite side.
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Thomas David B.
Townsend and Townsend and Crew LLC
Zimmer GmbH
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