Underwater breathing apparatus

Details Underwater breathing apparatus Underwater breathing apparatus

B - Operations, Transporting

63

C

115/39, 137/1.52

B63C 11/24 (2006.01) B63C 11/18 (2006.01) B63C 11/46 (2006.01)

Patent

CA 2030804

- 27 - ABSTRACT This invention relates to a breathing apparatus used in diving. The breathing apparatus is constructed from an underwater propelling device D having attached thereto an assembly consisting of a gas exchange module A containing hollow fibers (1) and having a gas inlet (2) and a gas outlet (3), an air reservoir (8) having an inlet (6) and an outlet (7), and a mouthpiece C having a gas outlet (11) provided with a valve opening only during exhalation and a gas inlet (10) provided with a valve opening only during inhalation, said gas exchange module A, said air reservoir B and said mouthpiece C being connected in series so that the inlet of each of them communicates with the outlet of another. This breathing apparatus can exhibit improved gas exchange capability because the water around the hollow fibers (1) is easily replaced when the breathing apparatus, together with the underwater propelling device D, is moved through the water. A portable breathing apparatus is also dis- closed which is constructed similar to the above assembly and can be carried on the back of a diver instead of being attached to the underwater propelling device.

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