Tools – Wrench – screwdriver – or driver therefor – Stud-removal and implacement
Reexamination Certificate
2006-12-26
2006-12-26
Shakeri, Hadi (Department: 3723)
Tools
Wrench, screwdriver, or driver therefor
Stud-removal and implacement
C081S441000
Reexamination Certificate
active
07152509
ABSTRACT:
A fastener extractor and a method of extracting a fastener are provided. The fastener extractor includes a shaft, an engagement end at a distal end of the shaft and an attachment end at a proximal end of the shaft. The engagement end includes a plurality of helical ridges and grooves. The attachment end extends axially from the shaft and includes a hexagonal cross-sectional portion adapted to engage an extraction tool. Adjacent ones of the plurality of the grooves form the ridges therebetween and the plurality of ridges is adapted to engage a pre-formed opening in a fastener to be removed.
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McCalley, Jr. Richard M.
Vogeler Mark T.
Irwin Industrial Tool Company
Moore & Van Allen PLLC
Shakeri Hadi
Williamson Dennis J.
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