EP0657188A1 - Pulverfeuerlöscher - Google Patents

Pulverfeuerlöscher Download PDF

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Publication number
EP0657188A1
EP0657188A1 EP94420314A EP94420314A EP0657188A1 EP 0657188 A1 EP0657188 A1 EP 0657188A1 EP 94420314 A EP94420314 A EP 94420314A EP 94420314 A EP94420314 A EP 94420314A EP 0657188 A1 EP0657188 A1 EP 0657188A1
Authority
EP
European Patent Office
Prior art keywords
fire extinguisher
cartridge
valve
powder
striker
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.)
Withdrawn
Application number
EP94420314A
Other languages
English (en)
French (fr)
Inventor
Pierre Maccary
Pascual Sesa Vila
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.)
Valenciana De Mecanizacion Sa - Valmeca Sa
Desautel SAS
Original Assignee
Valenciana De Mecanizacion Sa - Valmeca Sa
Desautel SAS
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 Valenciana De Mecanizacion Sa - Valmeca Sa, Desautel SAS filed Critical Valenciana De Mecanizacion Sa - Valmeca Sa
Publication of EP0657188A1 publication Critical patent/EP0657188A1/de
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C13/00—Portable extinguishers which are permanently pressurised or pressurised immediately before use
    • A62C13/66—Portable extinguishers which are permanently pressurised or pressurised immediately before use with extinguishing material and pressure gas being stored in separate containers
    • A62C13/72—Portable extinguishers which are permanently pressurised or pressurised immediately before use with extinguishing material and pressure gas being stored in separate containers characterised by releasing means operating essentially simultaneously on both containers
    • A62C13/74—Portable extinguishers which are permanently pressurised or pressurised immediately before use with extinguishing material and pressure gas being stored in separate containers characterised by releasing means operating essentially simultaneously on both containers the pressure gas container being pierced or broken

Definitions

  • the present invention relates to powder fire extinguishers pressurized at the time of use.
  • Fire extinguishers of this type generally containing one to two kilograms of powder, operate by means of a cartridge of carbon dioxide or the like placed in the reservoir. During use, a trigger is actuated which opens the diffusion valve and which actuates a needle to pierce the cartridge. At this time, the gas acts on the powder to lead it to the diffusion nozzle.
  • the gas pressure is applied on top of the powder charge to eject it outwards via a dip tube.
  • the extinguisher has a poor yield, because the powder is badly evacuated, so that a residual quantity greater than 10% is not diffused.
  • this 10% threshold constitutes a European standard, a device such as that described above does not meet the requirements of the technique.
  • a powder extinguisher comprising a reservoir in which is engaged a dip tube, the upper part of which is provided with the powder diffusion nozzle and the trigger. the device.
  • a dip tube In the dip tube there is a fixed axial striker, lateral gas outlet channels and a central opening for the passage of the powder.
  • the cartridge is placed upside down in the dip tube. It is moved down when the trigger is pressed, by means of a pusher against the reaction of a compression spring on which the neck of the cartridge is supported. The downward movement of the latter causes it to be pierced by the striker and the release of the gas. The powder is then propelled through the opening surrounding the striker in the direction of the diffusion nozzle.
  • the spring against which the cartridge bears when it moves down is in contact with the powder, so that the force to be applied to the trigger for moving the cartridge is 2.5 times greater than the effort authorized by standardization.
  • the spring being placed in the powder its action is delayed when you stop pressing the trigger to stop the diffusion of the powder, so that the valve of the diffusion valve does not close quickly enough or remains a little open.
  • the improvements which are the subject of the present invention aim to remedy these drawbacks and to allow the production of a device for actuating a powder extinguisher capable of meeting European standards, in particular as regards the quantity residual powder, limiting the impact force and finally the possibility of achieving an excellent seal at the closure valve of the diffusion nozzle during a limited projection of powder.
  • the device according to the invention is defined by the characteristics of claim 1.
  • Fig. 1 is an elevation view with cutaway of a powder extinguisher comprising application of improvements according to the invention.
  • Fig. 2 is a partial longitudinal section on a larger scale of the mechanism allowing the operation of the fire extinguisher. fig. 1.
  • Fig. 3 is a section along III-III (fig. 2).
  • Fig. 4 is a section along IV-IV (fig. 3).
  • Fig. 5 is a view similar to that of FIG. 2, but illustrating the control mechanism of the extinguisher according to the invention in the powder diffusion position.
  • the apparatus shown in fig. 1 and 2 and which has been generally referenced, 1 is a powder fire extinguisher pressurized at the time of use. It is composed of a tank 2 of the quite known type, the convex top 20 of which is provided with a tapped central opening 20 a closed by a hollow threaded plug 3. In the base of the plug is screwed a central dip tube 4 s extending almost to the bottom of the tank 2.
  • the cap 3 has a central and vertical bore 30 provided stepped, the lower part of which consists of a truncated cone 31 and a terminal cylinder 32. The diameter of the cylinder 32 corresponds roughly the inside diameter of the tube 4.
  • the cone 31 constitutes a seat for a valve 5 whose rod 50 crosses the bore 30 and protrudes above the plug 3. This upper end of the rod 50 cooperates with a trigger 6 for actuate the valve 5. It is observed that the bore 30 is constituted first of all by a recess 30 a against the shoulder of which is disposed an annular seal 7 on which is placed a washer 8. A return spring 9 planned helicoid o ⁇ dal is supported on the one hand on the washer 8, on the other hand on a ring 10 abutting against a circlip 11 associated with the rod 50.
  • This plug 3 also comprises a diffusion nozzle 33 coming from an annular chamber 34 disposed immediately above the cone 31.
  • a central boss 40 is arranged in the center of the tube 4 at such a distance from the plug 3 that a pressurized gas cartridge 12 can be engaged between this boss and the valve 5.
  • the neck 120 of this cartridge is provided with a groove in which is disposed an O-ring 13 cooperating on the other hand with the blind axial bore 41 of the boss 40.
  • the bottom of the cartridge 12 being in abutment against the valve 5, it is in position stable, that is to say retained by the gentle friction of the seal 13 on the wall of said bore 41, its cover 121 being disposed above a vertical striker 14 turned upwards and retained in the bottom of the bore 41 of boss 40.
  • Radial holes 42 put the bore in connection with the outside of tube 40 at the striker 14. It will be noted that the external face turned downwards of boss 40 could affect the cylindro-ogival shape.
  • the boss 40 is connected to the internal wall of the tube 4 by means of flat oval profiled arms 43, so that there is communication between the lower end of the tube 4 and the space between the cartridge 12 and the inner wall of the tube 4.
  • the trigger 6 is pinned down as usual, and it is moved down in the direction of the arrow F in FIG. 5.
  • This movement causes the lowering of the rod 50 and the creation of a passage between the valve 5 and the cone 31.
  • the downward movement of the valve causes that of the cartridge 12, so that its cover 121 is perforated by the fixed striker 14.
  • This movement is effected by maintaining the seal between the neck 120 of the cartridge and the bore 41 in which it moves thanks to the seal 13.
  • the neck of the cartridge comes rest on the upper end of the boss 40.
  • the gas contained by the cartridge escapes only through the radial holes 42 so as to apply all the pressure of the cartridge on the powder which then passes through the tube 4 from its lower end towards the diffusion nozzle 33 passing around the boss 40 and around the cartridge 12.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Nozzles (AREA)
  • Slot Machines And Peripheral Devices (AREA)
EP94420314A 1993-11-12 1994-11-10 Pulverfeuerlöscher Withdrawn EP0657188A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES9302979U ES1026199Y (es) 1993-11-12 1993-11-12 Mecanismo accionador para extintores, perfeccionado.
ES9302979U 1993-11-12

Publications (1)

Publication Number Publication Date
EP0657188A1 true EP0657188A1 (de) 1995-06-14

Family

ID=8284315

Family Applications (2)

Application Number Title Priority Date Filing Date
EP94420314A Withdrawn EP0657188A1 (de) 1993-11-12 1994-11-10 Pulverfeuerlöscher
EP95900143A Expired - Lifetime EP0692279B1 (de) 1993-11-12 1994-11-11 Betätigungsmechanismus für feuerlöscher

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP95900143A Expired - Lifetime EP0692279B1 (de) 1993-11-12 1994-11-11 Betätigungsmechanismus für feuerlöscher

Country Status (8)

Country Link
EP (2) EP0657188A1 (de)
AT (1) ATE193659T1 (de)
DE (1) DE69424864T2 (de)
DK (1) DK0692279T3 (de)
ES (1) ES1026199Y (de)
GR (1) GR3034250T3 (de)
PT (1) PT692279E (de)
WO (1) WO1995013115A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1961458A2 (de) 2007-02-23 2008-08-27 Delta Extinctors Feuerlöscher und seine Verwendung
WO2012025623A1 (fr) * 2010-08-27 2012-03-01 Delta Extinctors S.A. Tête de vanne d'extincteur d'incendie et son utilisation

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1759582A1 (de) * 1968-05-16 1971-06-16 Cie Centrale Sicli S A Vorrichtung zum Entnehmen von fluessigen oder staubfoermigen Stoffen aus Behaeltern
DE2532562A1 (de) * 1975-07-21 1977-02-10 Preussag Ag Minimax Feuerloescher
GB1478602A (en) * 1975-11-10 1977-07-06 Rampart Eng Co Ltd Powder type portable fire extinguishers
BE866485A (fr) * 1978-04-27 1978-08-14 Bavaria Feuerlosch Appbau Albe Extincteur a poudre avec cartouche d'agent de pression agencee au centre du tube de refoulement
FR2513728A1 (fr) * 1981-09-30 1983-04-01 Vignaud Jean Vanne d'extincteur a pression permanente
FR2602685A1 (fr) * 1986-08-05 1988-02-19 Alves Marcel Tete d'extincteur a percussion automatique
EP0283568A2 (de) * 1987-03-18 1988-09-28 Total Walther Feuerschutz GmbH Verfahren zur Herstellung eines Feuerlöschers

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1759582A1 (de) * 1968-05-16 1971-06-16 Cie Centrale Sicli S A Vorrichtung zum Entnehmen von fluessigen oder staubfoermigen Stoffen aus Behaeltern
DE2532562A1 (de) * 1975-07-21 1977-02-10 Preussag Ag Minimax Feuerloescher
GB1478602A (en) * 1975-11-10 1977-07-06 Rampart Eng Co Ltd Powder type portable fire extinguishers
BE866485A (fr) * 1978-04-27 1978-08-14 Bavaria Feuerlosch Appbau Albe Extincteur a poudre avec cartouche d'agent de pression agencee au centre du tube de refoulement
FR2513728A1 (fr) * 1981-09-30 1983-04-01 Vignaud Jean Vanne d'extincteur a pression permanente
FR2602685A1 (fr) * 1986-08-05 1988-02-19 Alves Marcel Tete d'extincteur a percussion automatique
EP0283568A2 (de) * 1987-03-18 1988-09-28 Total Walther Feuerschutz GmbH Verfahren zur Herstellung eines Feuerlöschers

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1961458A2 (de) 2007-02-23 2008-08-27 Delta Extinctors Feuerlöscher und seine Verwendung
BE1017476A3 (fr) * 2007-02-23 2008-10-07 Delta Extinctors Nv Appareil extincteur d'incendie et son utilisation.
EP1961458A3 (de) * 2007-02-23 2008-11-26 Delta Extinctors Feuerlöscher und seine Verwendung
WO2012025623A1 (fr) * 2010-08-27 2012-03-01 Delta Extinctors S.A. Tête de vanne d'extincteur d'incendie et son utilisation
BE1019460A3 (fr) * 2010-08-27 2012-07-03 Delta Extinctors S A Tete de vanne d'extincteur d'incendie et son utilisation.

Also Published As

Publication number Publication date
ES1026199Y (es) 1994-10-01
ATE193659T1 (de) 2000-06-15
GR3034250T3 (en) 2000-12-29
DE69424864T2 (de) 2001-01-11
EP0692279B1 (de) 2000-06-07
WO1995013115A1 (es) 1995-05-18
PT692279E (pt) 2000-11-30
DK0692279T3 (da) 2000-10-02
EP0692279A1 (de) 1996-01-17
ES1026199U (es) 1994-03-16
DE69424864D1 (de) 2000-07-13

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