Inflatable reversible life raft

B - Operations – Transporting – 63 – C

Patent

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Details

B63C 9/06 (2006.01) B63C 9/04 (2006.01)

Patent

CA 2233846

An inflatable life raft incorporates upper and lower canopies (28, 30) that are raised automatically above the upper or lower sides of the raft, respectively, depending on which side of the raft is facing upwardly when the raft is floating. The canopies each form a tent-like enclosure when raised to protect the raft occupants. The canopies are selectively raised by a generally vertically-oriented pillar (20) slidably joined to the raft body, each end of the pillar being joined to corresponding upper and lower canopies. Preferably, the pillar is capable of floating to permit it to elevate above the raft body. The pillar may comprise an inflatable elongate member that slides within an aperture (21) within the floor. A skirt (24) joins the pillar to the floor and provides a reversible waterproof seal between the pillar and the floor and limits the range of vertical travel of the pillar. One or more drain holes (25) may be provided within the base of the skirt to allow the occupants to drain water from within the raft. A waterproof cover (26) protects the drain holes, and may be drawn up around the pillar after the water has been drained to prevent water from entering the raft. The raft may alternatively incorporate but a single canopy on one side of the raft, for use in calmer waters where accidental inversion of the raft is unlikely.

Cette invention concerne un radeau de sauvetage gonflable comportant de part et d'autre du plancher une toile-abri (28, 30), l'une ou l'autre déployant automatiquement selon le côté du radeau qui fait face vers le haut pour constituer une tente protégeant les occupants. Les toiles-abri se déploient au moyen d'un poteau (20) généralement vertical fixé au corps du radeau en ajustement coulissant, avec ses extrémités liées aux toiles-abri. De préférence, le poteau est flottant pour pouvoir s'élever au-dessus du corps du radeau. Il peut comporter un élément gonflable allongé qui glisse dans une ouverture (21) du plancher. Une jupe (24) liant le poteau au plancher du radeau constitue un joint imperméable réversible entre les deux et sert de limiteur de course verticale pour le poteau. La jupe (24) peut comporter à sa base un ou plusieurs trous d'évacuation (25) permettant aux occupants de vider le radeau de toute eau embarquée, lesdits trous étant protégés par un couvercle étanche (26) que l'on referme autour du poteau pour empêcher l'eau de pénétrer dans le radeau. Une variante du radeau conçue pour des eaux plus calmes où les risques de renversement sont faibles peut ne comporter qu'une seule toile-abri.

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