MOUTH PIECE UNIT FOR A BREATHING DEVICE FOR DIVING

WIPO Patent Application WO/1997/024259

A1

A mouth piece unit (6) for a semi-closed type breathing device (1) in which when pressing down a start button (102), the entirety of a movable member (70) moves and an external opening (73) opens, whereby a mouth piece (62) is caused to protrude, allowing a diver to hold it in his/her mouth. Since the movable member (70) is held at that position even if the start button (102) is restored, a suction gas supply valve (21) is held in an open state by an engagement lever (74), whereby the supply of suction gas is continued. When the mouth piece (62) comes out of the mouth of the diver, the movable member (70) is restored and the external opening (73) is automatically closed, thereby preventing water from entering the inside therethrough from the outside. To drain water, when the start button (102) is kept pressed down, purge gas is supplied from a purge gas supply valve (22), a water draining opening (120) opens, and a breathing air tube connecting port (61a) is closed, this allowing water to be automatically drained. Thus, it is possible to realize a mouth piece unit for a semi-closed type breathing device than can easily be used by a beginner.

JP2969121	[Title of Invention] Offset Mouthpiece
WO/2021/023466	ARRANGEMENT FOR BREATHING APPARATUS, AND BREATHING APPARATUS
JPH11235997	COMPOSITE DISTRIBUTOR FOR LOW-PRESSURE APPLICATION

MATSUOKA SHUNSUKE (JP)
HASHIMOTO KIYOSHI (JP)

PCT/JP1996/003871

July 10, 1997

December 26, 1996

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GRAND BLEU INC (JP)
MATSUOKA SHUNSUKE (JP)
HASHIMOTO KIYOSHI (JP)

B63C11/18; B63C11/24; (IPC1-7): B63C11/24; B63C11/18

JPH07101388A	1995-04-18
JPH07215286A	1995-08-15
JPH05293190A	1993-11-09
JPH0725383A	1995-01-27
JPH0725384A	1995-01-27
JPH03220091A	1991-09-27
JPS5957090A	1984-04-02

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