Invention Grant
- Patent Title: Device to extract broken fasteners embedded in a workpiece
- Patent Title (中): 提取嵌入在工件中的破碎紧固件的装置
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Application No.: US11805565Application Date: 2007-05-23
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Publication No.: US07971508B2Publication Date: 2011-07-05
- Inventor: Ira M. Kozak
- Applicant: Ira M. Kozak
- Main IPC: B25B13/48
- IPC: B25B13/48 ; B25B23/10

Abstract:
A device to extract a fastener from a workpiece. The device includes a shaft having first and second end portions and, a cutting end tool adapted to engage and bore into the fastener as the shaft is rotated, a drill bit portion proximal to the cutting end tool and adapted to engage and bore into the fastener, and a socket disposed about the shaft and a collet collar disposed about the socket.
Public/Granted literature
- US20090100973A1 Device to extract broken fasteners embedded in a workpiece Public/Granted day:2009-04-23
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