Respiratory air flowmeter

Details Respiratory air flowmeter Respiratory air flowmeter

1990-05-30

1992-01-21

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Thermal type

128724, G01F 168

Patent

active

050818660

ABSTRACT:
A respiratory air flowmeter includes a flow path forming member, a restricting portion, rectifying lattices, and a sensor. The flow path forming member forms a flow path in which respiratory air flows. The restricting portion and the rectifying lattices are arranged in the flow path in order to stabilize a respiratory air flow. The sensor is mounted in a sensor mounting portion of the flow path forming member, and detects a flow rate of respiratory air flowing in the flow path.

REFERENCES:
patent: 3433069 (1969-03-01), Trageser
patent: 3645133 (1972-02-01), Simeth et al.
patent: 3800592 (1974-04-01), Jones, Jr.
patent: 4363238 (1982-12-01), William
patent: 4829818 (1989-05-01), Bohrer
patent: 4972708 (1990-11-01), Wiegleb et al.

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