B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
B65D 51/16 (2006.01) B65D 41/04 (2006.01)
Patent
CA 2168462
The invention provides a container closure assembly for storing fluids under pressure, said assembly comprising: a container neck (10); a closure (12) for said neck; a first screw thread (14) on one of said neck and closure; a second screw thread (16) on another of said neck and closure; said second screw thread being engageable with said first screw thread; means (13) for forming a seal between said neck and closure when said closure is screwed down on said neck; mutually engageable elements (34, 38) on said neck and closure to block or restrict rotation of said closure in an unscrewing direction beyond an intermediate position when said closure is under an axial pressure in a direction emerging from said container neck; wherein said neck and closure ace constructed and arranged to provide a vent for venting fluid from said container neck at least when said closure is in said intermediate position.
L'invention se rapporte à un ensemble de fermeture de récipient permettant de stocker des fluides sous pression, ledit ensemble comprenant: un goulot (10) de récipient; un capuchon (12) destiné au goulot; un premier filetage (14) ménagé sur le goulot ou le capuchon; un second filetage (16) ménagé sur l'élément restant, ce second filetage entrant en prise avec le premier; des moyens (13) permettant de produire un contact étanche entre le goulot et le capuchon lorsque ce dernier est vissé sur le goulot; des éléments (34, 38) pouvant être réciproquement accouplés, ménagés sur le goulot et le capuchon, afin de bloquer ou de restreindre la rotation de ce dernier dans un sens de dévissage au-delà d'une portion intermédiaire dans laquelle le capuchon subit une pression axiale dans une direction ascendante par rapport au goulot; lesdits goulot et capuchon étant fabriqués et agencés de façon à présenter un orifice permettant d'évacuer un fluide dudit goulot au moins lorsque le capuchon se trouve dans sa position intermédiaire.
Beeson And Sons Limited
Gowling Lafleur Henderson Llp
LandOfFree
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