UTILITY KNIFE INCLUDING A LOCKING MECHANISM AND/OR RATCHETING MECHANISM
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United States of America Patent
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Issued Date -
Oct 24, 2013
app pub date -
Jun 17, 2013
filing date -
Jan 13, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A utility knife includes a handle and a pivotably connected blade retainer for retaining a blade. An external, symmetrically toothed gear is fixed relative to one of the handle or the blade retainer, and a locking mechanism is associated with the other. The locking mechanism cooperates with the gear to lock the blade retainer in one of a plurality of fixed positions and includes pawls located in channels having converging ends. A manually actuable release mechanism is associated with the locking mechanism for unlocking the blade retainer to permit pivotal movement. Furthermore, a manually actuable blade release mechanism is associated with a blade locking mechanism contained in the blade retainer, for locking and releasing the blade when exchanging a dull blade for a replacement blade.
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