F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
285/47.5
F16L 21/06 (2006.01)
Patent
CA 1038904
CANADA "IMPROVEMENTS IN OR RELATING TO TUBE COUPLINGS" ABSTRACT OF THE DISCLOSURE A tube coupling comprises a collet with resilient arms arranged to co-operate with a cam surface of a surrounding body or sleeve, the cam surface tapering in the axial direction such that, as a tube in the collet is pulled outwardly, frictional pull between the tube and collet causes the collet to move in a direction to tighten the grip on the tube. The arms of the collet are spaced apart radially such that, in the absence of any tube, the collet can be withdrawn outwardly from the sleeve or body. Pushing the collet inwardly into the sleeve or body allows the arms to move radially outwardly and the tube can then be withdrawn. The collet has a flange or the like extending radially outside the sleeve or body and a spring clip is provided between this flange and the sleeve or body to lock the coupling against release of the tube. By using such a clip holding the collet outwardly from the body the arms of the collet are retained in a position gripping the tube; the clip prevents the collet from being pushed inwardly to release the tube.
263562
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