GB1233178A - - Google Patents

Info

Publication number
GB1233178A
GB1233178A GB1233178DA GB1233178A GB 1233178 A GB1233178 A GB 1233178A GB 1233178D A GB1233178D A GB 1233178DA GB 1233178 A GB1233178 A GB 1233178A
Authority
GB
United Kingdom
Prior art keywords
gas
gas meter
polyethyline
heading
aug
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
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 filed Critical
Publication of GB1233178A publication Critical patent/GB1233178A/en
Expired legal-status Critical Current

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
    • G01F3/225—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 characterised by constructional features of membranes or by means for improving proper functioning of membranes

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Diaphragms And Bellows (AREA)
  • Measuring Volume Flow (AREA)

Abstract

1,233,178. Gas meter diaphragms. UNITED GAS INDUSTRIES Ltd. July 29, 1968 [Aug. 1, 1967], No. 35356/67. Heading G1R. A gas meter diaphragm comprises a base of flexible gas impermeable material, such as a nitrile rubber or polyethyline coated with a thin metallic film such as aluminium gold or silver.
GB1233178D 1967-08-01 1967-08-01 Expired GB1233178A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3535667 1967-08-01

Publications (1)

Publication Number Publication Date
GB1233178A true GB1233178A (en) 1971-05-26

Family

ID=10376827

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1233178D Expired GB1233178A (en) 1967-08-01 1967-08-01

Country Status (1)

Country Link
GB (1) GB1233178A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees
PCNP Patent ceased through non-payment of renewal fee