Tools – Wrench – screwdriver – or driver therefor – Handle or shank
Reexamination Certificate
2007-03-14
2008-07-15
Smith, Scott A. (Department: 3721)
Tools
Wrench, screwdriver, or driver therefor
Handle or shank
C081S177400, C081S492000, C016S110100
Reexamination Certificate
active
07398712
ABSTRACT:
A rotary impact tool comprises a driving portion; an axial portion; a handle enclosing the axial portion; and an impact portion being pivotally installed to the axial portion and rotatable with respect to the axial portion; wherein the rotatable impact portion causes that the tool is an impact tool and a rotation tool. A magnetic unit is installed in the impact portion for absorption. A bottom end of the driving portion has a resisting portion which is an elliptical cylinder with two ends being cut. A body extended from the axial portion and the body is formed with a plurality of holes. The axial portion is formed with a through hole. A C ring encloses the axial portion; the axial portion is connected to the impact portion by using the C ring; and thus the impact portion is rotatable with respect to the axial portion.
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