B - Operations – Transporting – 63 – C
Patent
B - Operations, Transporting
63
C
B63C 11/22 (2006.01)
Patent
CA 2201501
A breathing air hose 50 for underwater breathing apparatus has a peripheral wall 51 with a cross-sectional shape, viewed when cut along the hose axis line 50a, consisting of alternating thick-walled portions 52 in which the inside surface is flat and the outside protrudes and thin-walled portions 53 that are curved toward the inside with a small curvature. The inside surface 51a is essentially flat, so there are no problems from the standpoint of hygiene such as those of bellows hose in which dirt and the like accumulates in the depressions, causing germs and the like to propagate. In addition, because of the thin-walled portions, the hose has the flexibility and other attributes required of a breathing hose.
Cette invention concerne un tuyau respiratoire 50 pour appareils de plongée sous-marine, dont la paroi 51, vue en coupe dans le sens longitudinal suivant la ligne 50a, est constituée de sections épaisses 52 alternant avec des sections minces 53. Les sections épaisses 52 présentent une surface interne plate et une surface externe protubérante, alors que les sections minces présentent une surface interne légèrement bombée. La surface interne sur la ligne 51a est à peu près plate, de sorte qu'elle ne pose pas de problèmes d'hygiène particuliers, contrairement aux tuyaux en accordéon, dont les replis peuvent servir de logement aux impuretés propices à la prolifération de bactéries. De plus, grâce aux sections minces, le tuyau de cette invention possède la flexibilité et les autres qualités requises d'un tuyau respiratoire.
Grand Bleu Inc.
Swabey Ogilvy Renault
LandOfFree
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