Composite open bonnet for large industrial and medical gas cylinders

摘要

The invention relates to an open-type protective cowling for a fluid container, particularly for a gas cylinder, made up of a cowling body (1) made of polymer comprising an insert (2) made of metal or metal alloy with a tapping (10). As a preference, the insert (2) is essentially in the shape of a ring with a tapped internal wall and the cowling body (1) is overmolded around the tapped insert (2). In addition, the insert (2) may have one or more recesses (7) and/or one or more strengtheners (6) on its external peripheral wall. Furthermore, the invention also relates to a gas cylinder equipped with such a protective cowling, and to the method for manufacturing such a protective cowling.