F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
285/64
F16L 13/00 (2006.01) F16L 37/088 (2006.01) F16L 37/091 (2006.01)
Patent
CA 1144209
ABSTRACT OF THE DISCLOSURE There is provided an improved releasable coupling device for a tube, the releasable coupling device comprising a fitting having a bore therein and an opening into the bore for receiving the end of a tube, the opening having a first end adjacent the bore and a second end open to the exterior of the fitting; a retaining ring in the opening having a plurality of axially extending, inwardly biased fingers adapted to engage a tube when it is inserted into the fitting towards the bore so that the tube is restrained against axial movement out of the fitting; the retaining ring comprising a multi-sided web portion, the plurality of fingers being integrally formed with the web portion and depending therefrom, adjacent sides of the web portion defining a plurality of corners, the dimensions of the multi-sided web portion being such that the diameter of an imaginary circle passing through the corners is greater than the diameter of the portion of the opening it engages before said retaining ring is inserted into the opening, and the dimensions of said multi-sided web portion being such that the diameter of an imaginary circle passing through the mid-points of the sides of said web portion is less than the diameter of said portion of said opening before said retaining ring is inserted into said opening, whereby the retaining ring may be supported within said portion of said opening solely by engagement of the corners against the side wall of said portion of said opening when the retaining ring is inserted into the opening, and unlocking means capable of forcing the plurality of fingers radially outward to disengage the fingers from the tube.
355521
G. Ronald Bell & Associates
Nycoil Corporation
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