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1. (WO1991006831) GAS FLOW METER HOUSING
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/006831 International Application No.: PCT/US1990/006412
Publication Date: 16.05.1991 International Filing Date: 05.11.1990
IPC:
A61B 5/087 (2006.01) ,G01F 1/42 (2006.01) ,G01F 15/12 (2006.01)
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
5
Measuring for diagnostic purposes; Identification of persons
08
Measuring devices for evaluating the respiratory organs
087
Measuring breath flow
G PHYSICS
01
MEASURING; TESTING
F
MEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME
1
Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through the meter in a continuous flow
05
by using mechanical effects
34
by measuring pressure or differential pressure
36
the pressure or differential pressure being created by the use of flow constriction
40
Details of construction of the flow constriction devices
42
Orifices or nozzles
G PHYSICS
01
MEASURING; TESTING
F
MEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME
15
Details of, or accessories for, apparatus of groups G01F1/-G01F13/104
12
Cleaning arrangements; Filters
Applicants:
BICORE MONITORING SYSTEMS [US/US]; 19-B Thomas Irvine, CA 92718, US
Inventors:
STUPECKY, Josef; US
Agent:
DEVEZA, Robert, R. ; Knobbe, Martens, Olson and Bear 620 Newport Center Drive 16th Floor Newport Beach, CA 92660, US
Priority Data:
432,04006.11.1989US
Title (EN) GAS FLOW METER HOUSING
(FR) DEBITMETRE DE GAZ
Abstract:
(EN) A variable gas flow meter (130) for obtaining a differential pressure across a membrane (136) having a variable area orifice. The orifice is defined by a hinged flap which swings open in the direction of gaz flow. The area of the orifice enlarges with increased flow. The flow meter retains the membrane in a central housing (138a, 138b) configured to prevent the accumulation of liquids, such as moisture or mucus, which enter the line. In a first, horizontal embodiment, the housing invert (146a, 146b) is continuous and flush throughout except for negligible ridge (137) of membrane that remains when the orifice opens. In a second, vertical embodiment, the housing allows liquids in an upper conduit section to drop downward and flow out the device into a lower conduit section through the forces of gravity and a gas flow.
(FR) Débitmètre (130) de gaz variable, permettant d'obtenir une pression différentielle dans une membrane (136) dotée d'un orifice à superficie variable. L'orifice est défini par un clapet à charnière, lequel s'ouvre par oscillation dans le sens de l'écoulement du gaz. La superficie de l'orifice s'agrandit lorsque l'écoulement augmente. Le débitmètre retient la membrane dans un logement central (138a, 138b) configuré pour empêcher l'accumulation de liquides, tels que des moisissures ou du mucus, lesquels penètrent dans la canalisation. Dans un premier mode de réalisation horizontal, le radier (146a, 146b) du logement est continu et de niveau de bout en bout, excepté une saillie (137) négligeable de membrane restant lorsque l'orifice s'ouvre. Dans un second mode de réalisation vertical, le logement permet à du liquide se trouvant dans la partie supérieure du conduit, de chuter vers le bas et de s'écouler hors du dispositif jusque dans une partie inférieure du conduit, par l'intermédiaire des forces de gravité et d'un écoulement de gaz.
Designated States: CA, JP
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)