HK43391A - Minute gas flow detector - Google Patents

Minute gas flow detector

Info

Publication number
HK43391A
HK43391A HK433/91A HK43391A HK43391A HK 43391 A HK43391 A HK 43391A HK 433/91 A HK433/91 A HK 433/91A HK 43391 A HK43391 A HK 43391A HK 43391 A HK43391 A HK 43391A
Authority
HK
Hong Kong
Prior art keywords
gas flow
flow detector
minute gas
minute
detector
Prior art date
Application number
HK433/91A
Inventor
Shinji Takashima
Masato Ito
Original Assignee
Ricoh Kk
Ricoh Seiki Co Ltd
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 Ricoh Kk, Ricoh Seiki Co Ltd filed Critical Ricoh Kk
Publication of HK43391A publication Critical patent/HK43391A/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F3/00—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow
    • G01F3/02—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement
    • G01F3/20—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement having flexible movable walls, e.g. diaphragms, bellows
    • G01F3/22—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement having flexible movable walls, e.g. diaphragms, bellows for gases
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/06—Indicating or recording devices
    • 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
    • G01F1/10—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 using rotating vanes with axial admission
    • G01F1/115—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 using rotating vanes with axial admission with magnetic or electromagnetic coupling to the indicating device
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/14—Casings, e.g. of special material

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Measuring Volume Flow (AREA)
  • Details Of Flowmeters (AREA)
HK433/91A 1982-09-20 1991-06-06 Minute gas flow detector HK43391A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1982142388U JPS5945525U (en) 1982-09-20 1982-09-20 Micro flow rate operation detection device for gas meters

Publications (1)

Publication Number Publication Date
HK43391A true HK43391A (en) 1991-06-14

Family

ID=15314200

Family Applications (1)

Application Number Title Priority Date Filing Date
HK433/91A HK43391A (en) 1982-09-20 1991-06-06 Minute gas flow detector

Country Status (4)

Country Link
JP (1) JPS5945525U (en)
KR (2) KR840006406A (en)
GB (1) GB2128341B (en)
HK (1) HK43391A (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB492973A (en) * 1937-04-29 1938-09-30 Charles Leslie Stokoe A rotary flow indicator and alarm
GB621338A (en) * 1947-02-19 1949-04-07 Alexander & Sons Ltd Stephen Improvements in or relating to fluid flow indicators
BE486925A (en) * 1948-01-23 1949-02-15
BE560059A (en) * 1956-08-14
GB1102475A (en) * 1963-08-20 1968-02-07 Sangamo Weston Improvements in or relating to the measurement of electric power supply
GB1310270A (en) * 1969-07-03 1973-03-14 Rockwell Mfg Co Rotary fluid meters
JPS5682522U (en) * 1979-11-15 1981-07-03

Also Published As

Publication number Publication date
JPS5945525U (en) 1984-03-26
KR840006406A (en) 1984-11-29
GB2128341B (en) 1986-03-12
GB8324864D0 (en) 1983-10-19
KR920001428Y1 (en) 1992-02-24
JPH0412421Y2 (en) 1992-03-25
GB2128341A (en) 1984-04-26

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)