FR2523722B1 - - Google Patents

Info

Publication number
FR2523722B1
FR2523722B1 FR8204507A FR8204507A FR2523722B1 FR 2523722 B1 FR2523722 B1 FR 2523722B1 FR 8204507 A FR8204507 A FR 8204507A FR 8204507 A FR8204507 A FR 8204507A FR 2523722 B1 FR2523722 B1 FR 2523722B1
Authority
FR
France
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
FR8204507A
Other languages
French (fr)
Other versions
FR2523722A1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alsthom Atlantique SA
Original Assignee
Alsthom Atlantique SA
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 Alsthom Atlantique SA filed Critical Alsthom Atlantique SA
Priority to FR8204507A priority Critical patent/FR2523722A1/en
Publication of FR2523722A1 publication Critical patent/FR2523722A1/en
Application granted granted Critical
Publication of FR2523722B1 publication Critical patent/FR2523722B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/0033—Transmitting or indicating the displacement of bellows by electric, electromechanical, magnetic, or electromagnetic means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
    • H01H35/32—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by bellows
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
    • H01H33/56—Gas reservoirs
    • H01H33/563—Gas reservoirs comprising means for monitoring the density of the insulating gas

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)
FR8204507A 1982-03-17 1982-03-17 Differential manometer giving electrical output indication - includes sealed bellows arranged to operate three microswitches sequentially when ambient pressure falls Granted FR2523722A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8204507A FR2523722A1 (en) 1982-03-17 1982-03-17 Differential manometer giving electrical output indication - includes sealed bellows arranged to operate three microswitches sequentially when ambient pressure falls

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8204507A FR2523722A1 (en) 1982-03-17 1982-03-17 Differential manometer giving electrical output indication - includes sealed bellows arranged to operate three microswitches sequentially when ambient pressure falls

Publications (2)

Publication Number Publication Date
FR2523722A1 FR2523722A1 (en) 1983-09-23
FR2523722B1 true FR2523722B1 (en) 1984-08-10

Family

ID=9272090

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8204507A Granted FR2523722A1 (en) 1982-03-17 1982-03-17 Differential manometer giving electrical output indication - includes sealed bellows arranged to operate three microswitches sequentially when ambient pressure falls

Country Status (1)

Country Link
FR (1) FR2523722A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX2014002239A (en) * 2011-09-08 2014-08-27 Saginomiya Seisakusho Inc Pressure-activated switch and joint unit.

Also Published As

Publication number Publication date
FR2523722A1 (en) 1983-09-23

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Legal Events

Date Code Title Description
ST Notification of lapse