Hand tool with impact drive and speed reducing mechanism
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United States of America Patent
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Jul 25, 2006
Grant Date -
Mar 16, 2006
app pub date -
Sep 10, 2004
filing date -
Sep 10, 2004
priority date (Note) -
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Abstract
A power driven tool useful for tightening and loosening a mechanical fastener includes an impact mechanism. Preferably, the tool is pneumatic and includes a ratchet head and an impact device for providing additional torque to the ratchet head. A planetary reduction gear reduces the high output speed of a pneumatic motor for input into the impact device and reduces wear on the impact device.
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