Gas delivery sensor and respiratory aid appliance comprising suc

Details Gas delivery sensor and respiratory aid appliance comprising suc Gas delivery sensor and respiratory aid appliance comprising suc

1998-07-21

2000-12-26

Patel, Hashad

Measuring and testing

Volume or rate of flow

Using differential pressure

7386154, 138 42, G01F 137, F15D 5500

Patent

active

061641413

ABSTRACT:
A gas delivery sensor, of the type in which two upstream and downstream pressure pick-up conduits, which are each connected to a pressure sensor, open into a gas flow duct, in which a permeable element extends axially at least between opening ends of the two pressure pick-up conduits characterized in that the permeable element is produced in the form of a body which has, in cross-section, a shape complementary to that of the duct and which includes slots extending radially about its axis, so as to open radially onto an outer lateral surface of the body, and in that the slots extend axially over the entire length of the permeable body.

REFERENCES:
patent: 4418723 (1983-12-01), Koni et al.
patent: 4800754 (1989-01-01), Korpi
patent: 5044199 (1991-09-01), Drexel et al.
patent: 5445035 (1995-08-01), Delajoud
patent: 5804717 (1998-09-01), Lucas

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