Bi-metal chisel blade
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United States of America Patent
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Issued Date -
Aug 14, 2008
app pub date -
Feb 12, 2007
filing date -
Feb 12, 2007
priority date (Note) -
Abandoned
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Abstract
A chisel with a bi-material blade comprising a main body of low grade steel and a cutting portion of higher grade steel. The cutting portion of higher grade steel provides longer life and decreases the need for frequent sharpening. The main body and cutting portion are connected using an arcuate interface. Additionally, the main body and cutting portion may have a radiussed cross-sectional connection. The arcuate interface and radiussed cross-section help absorb the shear and impact forces applied to the tool.
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