RESPIRATORY SYSTEM

Japanese Patent JP3682420

B2

PROBLEM TO BE SOLVED: To provide a respiratory system wherein fed air for inhaling passes a filter, and the fed air by inertia of exhaling does not pass the filter, and the consumption of the filter can be saved.
SOLUTION: A blower cover 2 is attached to a sheet body, and in the blower cover 2, a fan 3 which is driven by a motor 4 and blows the outside air into the sheet body is provided. Then, the filter 5 goes across the air feeding passage of the blower cover 2. At the base section of the blower cover 2, an air suction valve 6 which communicates the inside of the blower cover 2 and the inside of the sheet body by opening at the time of inhaling, and closes at the time of exhaling is provided. Power is supplied to the motor 4 at the time of inhaling, and the power suppling is stopped at the time of exhaling. A feed back passage 9 which reaches a gap 8 between the other side of the fan 3 and the filter 5 from one side of the fan 3 by passing through a gap 7 between the side surface of the blower cover 2 and the fan 3, is provided.

JPS60128645	[Title of the device] Electric hose mask
WO/2022/198209	ELECTRO-IONIC SYSTEMS AND METHODS FOR TREATING ENCLOSED SPACES AND MEDICAL AIR AND GAS SUPPLY DEVICES FOR IMPROVED PROTECTION FROM AIRBORNE BIOPATHOGENS
WO/2023/272842	AIR FLOW GUIDE VALVE NOZZLE AND RESPIRATOR COMPRISING SAME

Satoshi Kuriyama

JP2001188012A

August 10, 2005

June 21, 2001

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Koken Co., Ltd.

A62B7/10; (IPC1-7): A62B7/10

JP61002878A

Matsuji Takemoto
Hideo Sugiyama
Koichi Yuda
Uozumi Takahiro
Akio Shionoiri
Naohiko Teshima

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