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    • 3. 发明专利
    • SCUBA BREATHING APPARATUS
    • GB8701165D0
    • 1987-02-25
    • GB8701165
    • 1987-01-20
    • APEKS MARINE EQUIPMENT LTD
    • B63C11/08B63C11/22
    • A breathing apparatus for scuba diving comprising a reservoir for compressed air an inlet valve for the supply of air to a mouthpiece, an exhalation valve the apparatus being connectable to a buoyancy device characterised in that the apparatus comprises (i) a first valve body (1) incorporating a first mouthpiece (2) communicating with an air chamber (3) within the valve body, the chamber being provided with an exhalation valve (4) for exhaled air (ii) a demand valve (9) for controlling the supply of air from the reservoir to the air chamber (iii) a pressure responsive device, preferably a diaphragm (6) connected operably to the demand valve the connection being made preferably by a lever (12) (iv) a second valve body (17) incorporating a valved mouthpiece (15) the second body being connectable to a buoyancy device preferably a garment and communicating through valve means (24) with air contained in the reservoir. e