Ratchet wrench capable of being operated through relatively smaller minimum swing angle action
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United States of America Patent
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Sep 1, 2015
Grant Date -
Oct 17, 2013
app pub date -
Jan 18, 2013
filing date -
Apr 13, 2012
priority date (Note) -
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Abstract
A ratchet wrench includes a head. A gear wheel, a first pawl, and a second pawl are disposed in a chamber defined in the head. The gear wheel has an outer periphery thereof including a plurality of teeth extended circumferentially outwardly therefrom. The first and second pawls each include a lateral side thereof including third and fourth plurality of teeth respectively extended outwardly therefrom. The first and second pawls are disposed one above the other. The first and second pawls are respectively biased by first and second biasing mechanisms. The first and second pawls are alternatively engaged with the gear wheel when it is operably turned.
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