SEMICLOSED RESPIRATOR - GRAND BLEU INC

Title:

SEMICLOSED RESPIRATOR

Document Type and Number:

WIPO Patent Application WO/1995/009762

Kind Code:

A1

Abstract:

The constituent parts of a semiclosed respirator (1) are all set in a housing (2). When a push-button (616) of a mouth-piece unit (6) is pressed with a chewing piece (617) held between upper and lower teeth, the supplying of a gas to be inhaled, which flows at a predetermined flow rate, through a gas supply pipe (84) is started. When an operating lever (633) is pressed, a large quantity of gas is supplied through a gas supply pipe (85), and the removal of water from the mouth-piece unit is carried out. A carbon dioxide adsorption means (7) is of a so-called cartridge type held detachably in a container (3), and can be replaced by a new one easily. A large quantity of gas is supplied automatically in an emergency from a gas supply pipe (86) to an inhalation passage (32), and an auto-valve means (12) adapted to discharge a gas automatically when the inner pressure of the suction passage has increased is provided thereon. An expiration air bag (9) is provided at its bottom portion with a drainage means, in which a draining action is made automatically via a water discharge port (96) in accordance with a respiration action. According to the present invention, a semiclosed respirator of a high safety which can be used conveniently even by a beginner can be provided.

Inventors:

FURUICHI YUTAKA (JP)
MATSUOKA SHUNSUKE (JP)

Application Number:

PCT/JP1994/000021

Publication Date:

April 13, 1995

Filing Date:

January 10, 1994

Export Citation:

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Assignee:

GRAND BLEU INC (JP)
FURUICHI YUTAKA (JP)
MATSUOKA SHUNSUKE (JP)

International Classes:

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

Foreign References:

JPS5957090A	1984-04-02
JPS4870400U	1973-09-05
JPS5043920Y2	1975-12-15
JPH045196U	1992-01-17
JPS4924114B1	1974-06-20

Other References: