FR2337899A1 - Safety valve control in depressurised cistern - employs reserve of depressurisation to prevent valve hammer effect - Google Patents

Safety valve control in depressurised cistern - employs reserve of depressurisation to prevent valve hammer effect

Info

Publication number
FR2337899A1
FR2337899A1 FR7600599A FR7600599A FR2337899A1 FR 2337899 A1 FR2337899 A1 FR 2337899A1 FR 7600599 A FR7600599 A FR 7600599A FR 7600599 A FR7600599 A FR 7600599A FR 2337899 A1 FR2337899 A1 FR 2337899A1
Authority
FR
France
Prior art keywords
depressurisation
safety valve
reserve
cistern
valve
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
FR7600599A
Other languages
French (fr)
Other versions
FR2337899B1 (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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7600599A priority Critical patent/FR2337899A1/en
Publication of FR2337899A1 publication Critical patent/FR2337899A1/en
Application granted granted Critical
Publication of FR2337899B1 publication Critical patent/FR2337899B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/04—Control of fluid pressure without auxiliary power
    • G05D16/06—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule
    • G05D16/063—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane
    • G05D16/0644—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting directly on the obturator
    • G05D16/0672—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting directly on the obturator using several spring-loaded membranes

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Sanitary Device For Flush Toilet (AREA)

Abstract

A safety valve for a cistern under depressurisation is carried by a membrane which moves under depressurisation to cause the valve to open. A reserve of depressurisation enables a stable balanced position to be attained without hammer effect. A safety valve (5) is carried by a membrane (6) which forms a small chamber (7) with a channel (8) to the exterior. The other face of the membrane forms a second chamber (9) containing a return spring (10) and a channel (13) to the exterior. a valve enables this chamber to communicate with a third chamber (14) with a diaphragm (15) carrying a piston (16) which is moved to open the valve (12) when depressurisation increases. This causes the safety valve (5) to open.
FR7600599A 1976-01-12 1976-01-12 Safety valve control in depressurised cistern - employs reserve of depressurisation to prevent valve hammer effect Granted FR2337899A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7600599A FR2337899A1 (en) 1976-01-12 1976-01-12 Safety valve control in depressurised cistern - employs reserve of depressurisation to prevent valve hammer effect

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7600599A FR2337899A1 (en) 1976-01-12 1976-01-12 Safety valve control in depressurised cistern - employs reserve of depressurisation to prevent valve hammer effect

Publications (2)

Publication Number Publication Date
FR2337899A1 true FR2337899A1 (en) 1977-08-05
FR2337899B1 FR2337899B1 (en) 1979-07-06

Family

ID=9167806

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7600599A Granted FR2337899A1 (en) 1976-01-12 1976-01-12 Safety valve control in depressurised cistern - employs reserve of depressurisation to prevent valve hammer effect

Country Status (1)

Country Link
FR (1) FR2337899A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0017493A1 (en) * 1979-04-03 1980-10-15 R.J. FULLWOOD & BLAND LIMITED Improvements in and relating to vacuum regulators

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0017493A1 (en) * 1979-04-03 1980-10-15 R.J. FULLWOOD & BLAND LIMITED Improvements in and relating to vacuum regulators

Also Published As

Publication number Publication date
FR2337899B1 (en) 1979-07-06

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Legal Events

Date Code Title Description
ST Notification of lapse