Retractor for a cylindrical lock
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United States of America Patent
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May 28, 2013
Grant Date -
N/A
app pub date -
Mar 1, 2012
filing date -
Mar 1, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A cylindrical lock includes a retractor mounted between inner and outer operational devices and operably connected to a latch. The retractor includes an upper surface having an upper recess. The retractor further includes a lower surface having a lower recess. Two upper compartments are defined in two sidewalls of the upper recess and extend to two lateral surfaces of the retractor, forming two upper tongues. Two lower compartments are defined in two sidewalls of the lower recess and extend to the lateral surfaces of the retractor, forming two lower tongues. First and second rollers are rotatably received in the upper and lower recesses, respectively. A size of an opening of each of the upper and lower compartments is reduced by pressing a distal end of each upper tongue downward and by pressing a distal end of each lower tongue upward, retaining the first and second rollers in place.
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