FR2327628A1 - Non-reversible pressure sensitive switch - has pressure rupturing membrane permitting gas to act on piston closing three microswitches - Google Patents

Non-reversible pressure sensitive switch - has pressure rupturing membrane permitting gas to act on piston closing three microswitches

Info

Publication number
FR2327628A1
FR2327628A1 FR7344461A FR7344461A FR2327628A1 FR 2327628 A1 FR2327628 A1 FR 2327628A1 FR 7344461 A FR7344461 A FR 7344461A FR 7344461 A FR7344461 A FR 7344461A FR 2327628 A1 FR2327628 A1 FR 2327628A1
Authority
FR
France
Prior art keywords
pressure
microswitches
piston
act
sensitive switch
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.)
Granted
Application number
FR7344461A
Other languages
French (fr)
Other versions
FR2327628B1 (en
Inventor
Jacques Chorel
Jacques Devaud
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.)
Thales Avionics SAS
Original Assignee
Crouzet 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 Crouzet SA filed Critical Crouzet SA
Priority to FR7344461A priority Critical patent/FR2327628A1/en
Publication of FR2327628A1 publication Critical patent/FR2327628A1/en
Application granted granted Critical
Publication of FR2327628B1 publication Critical patent/FR2327628B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/50—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member
    • H01H13/503—Stacked switches

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

A pressure switch is used to detect an increase in gas pressure and to give a signal when this gas pressure has reached a set level. The signal is maintained even when the pressure is reduced to zero. The pressure switch has a stainless steel case (1). It also has a piston (3) and a chamber (1e) with three microswitches (4,4',4"). The piston (3) has an extension (3a) which actuates a strip (5) which can make contact with all three microswitches (4,4',4") simultaneously. A calibrated membrane (10) separates the gas from a chamber (1b) above the piston (3). On rupture of the membrane (10) due to an excess pressure, the piston (3) is displaced and actuates the microswitches (4,4',4"). When the pressure is decreased, the piston (3) does not return to its initial position and the microswitches (4,4',4") remain closed.
FR7344461A 1973-12-12 1973-12-12 Non-reversible pressure sensitive switch - has pressure rupturing membrane permitting gas to act on piston closing three microswitches Granted FR2327628A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7344461A FR2327628A1 (en) 1973-12-12 1973-12-12 Non-reversible pressure sensitive switch - has pressure rupturing membrane permitting gas to act on piston closing three microswitches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7344461A FR2327628A1 (en) 1973-12-12 1973-12-12 Non-reversible pressure sensitive switch - has pressure rupturing membrane permitting gas to act on piston closing three microswitches

Publications (2)

Publication Number Publication Date
FR2327628A1 true FR2327628A1 (en) 1977-05-06
FR2327628B1 FR2327628B1 (en) 1978-03-24

Family

ID=9129145

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7344461A Granted FR2327628A1 (en) 1973-12-12 1973-12-12 Non-reversible pressure sensitive switch - has pressure rupturing membrane permitting gas to act on piston closing three microswitches

Country Status (1)

Country Link
FR (1) FR2327628A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2587541A1 (en) * 1985-09-18 1987-03-20 Commissariat Energie Atomique Improved pressure-gauging isolator
FR2743935A1 (en) * 1996-01-19 1997-07-25 Crouzet Automatismes MULTIPOLAR SWITCHING DEVICE

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2587541A1 (en) * 1985-09-18 1987-03-20 Commissariat Energie Atomique Improved pressure-gauging isolator
FR2743935A1 (en) * 1996-01-19 1997-07-25 Crouzet Automatismes MULTIPOLAR SWITCHING DEVICE
DE19700125C2 (en) * 1996-01-19 2000-11-09 Crouzet Automatismes Valence Multipole switching device

Also Published As

Publication number Publication date
FR2327628B1 (en) 1978-03-24

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Legal Events

Date Code Title Description
ST Notification of lapse