EP0743077A1 - Hochdrucksicherheitsvorrichtung für Feuerlöscher - Google Patents

Hochdrucksicherheitsvorrichtung für Feuerlöscher Download PDF

Info

Publication number: EP0743077A1
Authority: EP; European Patent Office
Prior art keywords: seal; head; high pressure; fire extinguisher; tank
Prior art date: 1995-05-15
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

EP96401032A

Other languages

English (en)

French (fr)

Other versions

EP0743077B1 (de

Inventor

Jacques Jalencas

Hervé Berault

Michel Fillot

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.)

Compagnie Centrale Sicli SA

Original Assignee

Compagnie Centrale Sicli 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.)

1995-05-15

Filing date

1996-05-13

Publication date

1996-11-20

1996-05-13 Application filed by Compagnie Centrale Sicli SA filed Critical Compagnie Centrale Sicli SA

1996-11-20 Publication of EP0743077A1 publication Critical patent/EP0743077A1/de

2001-11-21 Application granted granted Critical

2001-11-21 Publication of EP0743077B1 publication Critical patent/EP0743077B1/de

2016-05-13 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Images

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
- A62C13/76—Details or accessories

Definitions

the invention relates to an anti-high pressure safety device for fire extinguishers.
Fire extinguishers comprise, in known manner, a reservoir containing the product to be sprayed, the opening of which is closed by a distribution head which supports a closed cartridge of gas under pressure.
a striker By the action of a striker on a sealing cap of an orifice of this cartridge, it is immediately put in communication with the reservoir by establishing a high pressure therein capable of driving the extinguishing agent towards a spraying cane connected to a feed-through well provided in the distribution head.
the latter also serves as a support for the triggering mechanisms of the striker, in particular the usual pressing lever and its pin or its control and safety ring.
the dispensing head which is a round piece coming from foundry or machining, is firmly fixed, for example by screwing, on the opening of the tank.
the seal is ensured by an annular seal housed in a peripheral groove formed in the head. When tightening, the seal is crushed against the circular rim of the tank opening.
the invention provides a simple and effective device which allows, when such an overpressure is thus established in the tank, to avoid the drawbacks indicated above because it will establish in said head a leak to the outside. , as soon as the overpressure has exceeded a predetermined threshold.
the invention therefore relates to an anti-high pressure safety device for a fire extinguisher, the dispensing head of which is tightly fixed to the reservoir containing the product to be sprayed, the seal being provided by a seal housed in a groove. annular of said head, the seal being intended to be crushed on a neck of the reservoir during the closing of the head, device according to which the edges of the annular groove in which the seal is positioned are each hollowed out by a notch and on the other side of the joint, one opposite the other.
Figure 1 a perspective view of a distribution head for fire extinguisher and Figure 2 the same view showing the seal in the deformed position.
Figure 1 shows a dispensing head 1 for fire extinguisher which forms the cover of the tank containing the product to be sprayed. Said head is crossed by a well 2 communicating the interior of the tank with a gas cartridge under pressure not shown.
the various mechanisms are also fixed above the head, in particular the presser lever and its control ring, the striker, etc.
the peripheral part of the dispensing head is usually hollowed out with an annular groove 3 serving as a housing for a seal 4.
annular groove 3 serving as a housing for a seal 4.
the inner 5 and outer 6 edges of the annular groove 3 are hollowed out respectively with an internal notch 7 and an external notch 8 located one opposite the other.
This device therefore eliminates any immediate and progressive risk linked to an internal overpressure in the tank, and this in an extremely simple and effective manner.
the internal notch 7 can be of dimension smaller than that of the external notch 8 which must be able to allow the displacement of the joint towards the outside, the dimensions being defined according to each type of extinguisher.

Landscapes

Health & Medical Sciences (AREA)
Public Health (AREA)
Business, Economics & Management (AREA)
Emergency Management (AREA)
Buildings Adapted To Withstand Abnormal External Influences (AREA)
Filling Or Discharging Of Gas Storage Vessels (AREA)
Fire-Extinguishing Compositions (AREA)
Safety Valves (AREA)

EP96401032A 1995-05-15 1996-05-13 Hochdrucksicherheitsvorrichtung für Feuerlöscher Expired - Lifetime EP0743077B1 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
FR9505702		1995-05-15
FR9505702A FR2734163B1 (fr)	1995-05-15	1995-05-15	Dispositif de securite anti haute-pression pour extincteur d'incendie

Publications (2)

Publication Number	Publication Date
EP0743077A1 true EP0743077A1 (de)	1996-11-20
EP0743077B1 EP0743077B1 (de)	2001-11-21

Family

ID=9478965

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP96401032A Expired - Lifetime EP0743077B1 (de)	1995-05-15	1996-05-13	Hochdrucksicherheitsvorrichtung für Feuerlöscher

Country Status (5)

Country	Link
EP (1)	EP0743077B1 (de)
AT (1)	ATE209056T1 (de)
DE (1)	DE69617091T2 (de)
ES (1)	ES2168449T3 (de)
FR (1)	FR2734163B1 (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2340107A1 (fr) *	1976-02-03	1977-09-02	Schiffers Jean	Tete de robinetterie pour extincteur
BE878135A (nl) *	1979-08-07	1979-12-03	Carr Roger	Kopsamenstel voor een brandblusser
US4248484A (en) *	1979-09-24	1981-02-03	Smith International, Inc.	Pressure venting O-ring bearing seal for rock bits
EP0141563A2 (de) *	1983-10-21	1985-05-15	Roger Carr	Puderfeuerlöscher
DE9409359U1 (de) *	1994-06-09	1994-10-27	Eifel-Spritzguß GmbH, Plastikverarbeitung, 53937 Schleiden	Feuerlöscher

1995
- 1995-05-15 FR FR9505702A patent/FR2734163B1/fr not_active Expired - Lifetime
1996
- 1996-05-13 ES ES96401032T patent/ES2168449T3/es not_active Expired - Lifetime
- 1996-05-13 EP EP96401032A patent/EP0743077B1/de not_active Expired - Lifetime
- 1996-05-13 AT AT96401032T patent/ATE209056T1/de not_active IP Right Cessation
- 1996-05-13 DE DE69617091T patent/DE69617091T2/de not_active Expired - Lifetime

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2340107A1 (fr) *	1976-02-03	1977-09-02	Schiffers Jean	Tete de robinetterie pour extincteur
BE878135A (nl) *	1979-08-07	1979-12-03	Carr Roger	Kopsamenstel voor een brandblusser
US4248484A (en) *	1979-09-24	1981-02-03	Smith International, Inc.	Pressure venting O-ring bearing seal for rock bits
EP0141563A2 (de) *	1983-10-21	1985-05-15	Roger Carr	Puderfeuerlöscher
DE9409359U1 (de) *	1994-06-09	1994-10-27	Eifel-Spritzguß GmbH, Plastikverarbeitung, 53937 Schleiden	Feuerlöscher

Also Published As

Publication number	Publication date
FR2734163A1 (fr)	1996-11-22
FR2734163B1 (fr)	1997-08-01
EP0743077B1 (de)	2001-11-21
ATE209056T1 (de)	2001-12-15
DE69617091D1 (de)	2002-01-03
ES2168449T3 (es)	2002-06-16
DE69617091T2 (de)	2002-06-06

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