HK1007795A1 - Variable area obstruction gas flow meter - Google Patents

Variable area obstruction gas flow meter

Info

Publication number
HK1007795A1
HK1007795A1 HK98106943A HK98106943A HK1007795A1 HK 1007795 A1 HK1007795 A1 HK 1007795A1 HK 98106943 A HK98106943 A HK 98106943A HK 98106943 A HK98106943 A HK 98106943A HK 1007795 A1 HK1007795 A1 HK 1007795A1
Authority
HK
Hong Kong
Prior art keywords
conduit
obstruction
flow
variable area
leaves
Prior art date
Application number
HK98106943A
Other languages
English (en)
Inventor
Josef Stupecky
Original Assignee
Bicore Monitoring Systems
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bicore Monitoring Systems filed Critical Bicore Monitoring Systems
Publication of HK1007795A1 publication Critical patent/HK1007795A1/xx

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
    • G01F1/36—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
    • G01F1/40—Details of construction of the flow constriction devices
    • G01F1/42—Orifices or nozzles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
    • A61B5/087—Measuring breath flow
    • A61B5/0876—Measuring breath flow using means deflected by the fluid stream, e.g. flaps
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
    • G01F1/36—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
    • G01F1/40—Details of construction of the flow constriction devices
HK98106943A 1989-11-06 1998-06-26 Variable area obstruction gas flow meter HK1007795A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/432,041 US4989456A (en) 1989-11-06 1989-11-06 Variable area obstruction gas flow meter
PCT/US1990/006411 WO1991006830A1 (en) 1989-11-06 1990-11-05 Variable area obstruction gas flow meter

Publications (1)

Publication Number Publication Date
HK1007795A1 true HK1007795A1 (en) 1999-04-23

Family

ID=23714505

Family Applications (1)

Application Number Title Priority Date Filing Date
HK98106943A HK1007795A1 (en) 1989-11-06 1998-06-26 Variable area obstruction gas flow meter

Country Status (8)

Country Link
US (1) US4989456A (xx)
EP (1) EP0502098B1 (xx)
JP (1) JP2980979B2 (xx)
AT (1) ATE148223T1 (xx)
CA (1) CA2073006C (xx)
DE (1) DE69029810T2 (xx)
HK (1) HK1007795A1 (xx)
WO (1) WO1991006830A1 (xx)

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US9046396B2 (en) 2013-03-15 2015-06-02 Dieterich Standard, Inc. Process variable measurement using universal flow technology connection platform
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TWI696497B (zh) 2014-11-05 2020-06-21 美商3M新設資產公司 具有流動阻塞裝置之用於塗布懸浮液的模具及其使用方法
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Also Published As

Publication number Publication date
JP2980979B2 (ja) 1999-11-22
CA2073006A1 (en) 1991-05-07
EP0502098A1 (en) 1992-09-09
DE69029810T2 (de) 1997-08-21
EP0502098A4 (en) 1993-07-21
DE69029810D1 (de) 1997-03-06
EP0502098B1 (en) 1997-01-22
WO1991006830A1 (en) 1991-05-16
CA2073006C (en) 2001-03-20
JPH05506090A (ja) 1993-09-02
ATE148223T1 (de) 1997-02-15
US4989456A (en) 1991-02-05

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Legal Events

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PF Patent in force
PE Patent expired

Effective date: 20101104