Safety connecting device, in particular for piping, an end-coupler for such device, and a method for manufacturing a nut therefor
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United States of America Patent
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Nov 17, 2015
Grant Date -
Jan 29, 2015
app pub date -
Mar 7, 2013
filing date -
Mar 7, 2012
priority date (Note) -
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Abstract
The device connects a first end-coupler with a second end-coupler, in particular of a piping. A nut is provided with a threaded bore in which the first end-coupler is screwed along a longitudinal axis. In a tightening position, the first end-coupler is in axial stress with a second end-coupler accommodated in the nut. Anti-rotation means are provided between the nut and at least one of the end-couplers to prevent relative rotation except when a torque exceeding a predetermined threshold is applied thereto. The anti-rotation means consist of at least one tab made in the material of the nut to lockingly interfere with substantially planar faces formed on the second end-coupler.
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