EP0829275A1 - Foam producing nozzle for fire extinguishing apparatus - Google Patents
Foam producing nozzle for fire extinguishing apparatus Download PDFInfo
- Publication number
- EP0829275A1 EP0829275A1 EP97420153A EP97420153A EP0829275A1 EP 0829275 A1 EP0829275 A1 EP 0829275A1 EP 97420153 A EP97420153 A EP 97420153A EP 97420153 A EP97420153 A EP 97420153A EP 0829275 A1 EP0829275 A1 EP 0829275A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- foam
- head
- boss
- projection
- head according
- 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
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Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
- A62C31/12—Nozzles specially adapted for fire-extinguishing for delivering foam or atomised foam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/0018—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam
Definitions
- the present invention relates to a head generation and projection of foam, especially for a fire extinguisher.
- Some fire extinguishers contain a fluid, usually a mixture of water and a chemical additive capable of emulsifying with air to form an extinguishing foam.
- the projection heads that the known devices have the disadvantage of having a complex structure. Indeed, these heads include emulsion chambers with insertion holes air, means for emulsifying the mixture and air, especially turbines or chamber shapes suitable for producing a vortex flow, and screens or sieves, placed inside a tubing of diffusion of the foam.
- the present invention aims to remedy this disadvantage, by providing a generation head and foam projection, producing good foam quality and quantity, while having a simple structure.
- the head it concerns includes, so known per se, a foam diffusion tube produced.
- the head according to the invention thus does not include any mobile turbine-type unit, no emulsion chamber of complex structure, communicating with the outside by air intake holes, and no grate or screen diffusion.
- this head can be made of molded synthetic material.
- the tubing has a shape substantially conical, widening in the direction of the foam projection.
- the duct openings do not are thus not perpendicular to the direction of projection of the foam, but inclined outwards, according to the inclination of the wall of the tubing. This tilt favors the deflection of the jets by the boss.
- conduits, walls, openings, the aforementioned boss and tubing are arranged in a socket attached to the free end of the head.
- the boss has a shape rounded, especially hemispherical, favoring the deflecting the jets and preventing them from breaking before they collide.
- the spray head includes four conduits.
- the head includes a projection control valve, actuated by a mechanism.
- the head has a butt-shaped part and a projection cannon shape, and includes a trigger to control the foam projection.
- Figure 1 shows the generation 1 head and of foam projection that includes a device fire extinguisher (not shown).
- This device includes a pressure tank connected to the head 1 by a flexible hose, this tank containing a mixture of water and a chemical additive capable of emulsifying with air at head 1 to form a foam fire extinguisher.
- This head 1 has an internal body 5, a external housing 6 enveloping the body 5, a valve projection control, actuated by a housed mechanism in the body 5, a socket 7 ensuring the generation of the foam and a ring 8 for mounting this socket 7 on the free end of the body 5.
- the body 5 and the housing 6 each have a part 5a, 6a forming a stick and a part 5b, 6b forming a projection "cannon".
- Parts 5a and 5b define a conduit main fluid inlet 10, connected, at the level of the base of part 5a, to flexible hose (not shown) of the device.
- This conduit 10 is unique at the level of the part 5a and divides in part 5b in two lateral conduits 10a, 10b which join behind the socket 7.
- this part 5b comprises, between the lateral conduits 10a, 10b, a wall tubular 12 defining an axial bore, this bore being closed at its end opposite to the sleeve 7.
- the part 5b also includes a housing 13 transverse to this bore, communicating with this bore and opening on the outside of the body 5, on either side of this latest.
- Part 5b further includes tubing threaded 15, projecting coaxially to the bore of the side of the free end of the head 1, this tubing 15 comprising the sleeve 7 and the ring 8.
- a spring 16 and a rod 17 are engaged and can slide into the bore.
- Spring 16 carries against the bottom of the bore and against one end rod 17.
- the other end of the rod 17 projects from the bore, and comprises a pad 20 of resilient material.
- the end of the pad 20 has a conical shape, while the face of the socket 7 facing the interior of the head 1 comprises a conical seat 21 of same slope.
- the end of the pad 20 can come into contact of this conical seat 21 with sealing, and is normally held in this position by the spring 16, this the latter being compressed when the pad 20 is in contact from seat 21.
- the rod 17 also includes a housing transverse 22, arranged at height and opposite the housing 13.
- the two housings 13 and 22 are crossed by a trigger 25, pivotally mounted on the body 5 by means of a axis 26.
- This trigger 25 projects beyond the housing 6 through a slot 27, and comes to bear against the wall of the rod 17 delimiting the housing 22 on the side opposite the free end of the head 1.
- a pressure exerted on the trigger 25 so bringing it closer to part 6b makes it possible to compress the spring 16 and move the pad 20 away from the seat 21, therefore control the flow of the fluid outwards, through bush 7.
- the case 6 consists of two half-shells, one of which is partially cut on the figure 1. These two half-shells have flanges 30 body 5 and are assembled to each other by engagement of nipples or screws that includes one of them in corresponding holes 31 arranged in the wall of the other.
- the ring 8 comprises, for its part, a shoulder able to bear against this shoulder 42 and a thread allowing its screwing on the thread of the tubing 15 so as to clamp the sleeve 7 between it and the end of this tubing 15.
- the present invention thus makes it possible to obtain this result by means of a head 1 having a very structure simple and inexpensive to manufacture, which allows remedy the disadvantages of generation heads and projection of foam according to the prior art.
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Nozzles (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
- Fire-Extinguishing Compositions (AREA)
Abstract
Description
La présente invention concerne une tête de génération et de projection de mousse, notamment pour un appareil extincteur d'incendie.The present invention relates to a head generation and projection of foam, especially for a fire extinguisher.
Certains appareils extincteurs d'incendie contiennent un fluide, généralement un mélange d'eau et d'un additif chimique, propre à s'émulsionner avec l'air pour constituer une mousse extinctrice.Some fire extinguishers contain a fluid, usually a mixture of water and a chemical additive capable of emulsifying with air to form an extinguishing foam.
Les têtes de projection que comprennent les appareils connus ont pour inconvénient d'avoir une structure complexe. En effet, ces têtes comprennent des chambres d'émulsion présentant des trous d'introduction d'air, des moyens permettant l'émulsion du mélange et de l'air, notamment des turbines ou des formes de chambre propres à produire un écoulement tourbillonnaire, et des grilles ou tamis, placés à l'intérieur d'une tubulure de diffusion de la mousse.The projection heads that the known devices have the disadvantage of having a complex structure. Indeed, these heads include emulsion chambers with insertion holes air, means for emulsifying the mixture and air, especially turbines or chamber shapes suitable for producing a vortex flow, and screens or sieves, placed inside a tubing of diffusion of the foam.
Ces têtes sont relativement complexes à fabriquer et à assembler, ce qui influe notamment sur le prix de revient des appareils.These heads are relatively complex to manufacture and to assemble, which in particular influences the price of returns from devices.
La présente invention vise à remédier à cet inconvénient, en fournissant une tête de génération et de projection de mousse, produisant une mousse de bonne qualité et en quantité importante, tout en ayant une structure simple.The present invention aims to remedy this disadvantage, by providing a generation head and foam projection, producing good foam quality and quantity, while having a simple structure.
La tête qu'elle concerne comprend, de manière connue en soi, une tubulure de diffusion de la mousse produite.The head it concerns includes, so known per se, a foam diffusion tube produced.
Selon l'invention, la tête comprend, en outre :
- au moins deux conduits d'amenée du fluide destiné à mousser, régulièrement répartis sur la circonférence de la tête, ces conduits se terminant au niveau de leur extrémité de sortie par des parois orientées sensiblement perpendiculairement à la direction de projection de la mousse, et débouchant dans la base de la tubulure par des ouvertures situées au même niveau les unes des autres, et
- un bossage situé en face de ces ouvertures, lesdites parois étant destinées à dévier le fluide en direction dudit bossage, et ce bossage étant destiné à dévier les différents jets de fluide de manière à ce qu'ils se percutent mutuellement dans la base de la tubulure.
- at least two conduits for supplying the fluid intended for foaming, regularly distributed over the circumference of the head, these conduits ending at their outlet end by walls oriented substantially perpendicular to the direction of projection of the foam, and opening out in the base of the tubing by openings located at the same level from each other, and
- a boss located opposite these openings, said walls being intended to deflect the fluid in the direction of said boss, and this boss being intended to deflect the various jets of fluid so that they collide with each other in the base of the tubing .
Cette double déviation des jets de fluide, la rencontre de ces jets avec le bossage, leur percussion mutuelle et leur rencontre avec la paroi de la tubulure s'avèrent permettre un parfait mélange du fluide et de l'air, et produire une mousse de bonne qualité, en quantité importante.This double deflection of the jets of fluid, the meeting of these jets with the boss, their percussion mutual and their meeting with the wall of the tubing prove to allow a perfect mixture of the fluid and air, and produce good quality foam, significant amount.
La tête selon l'invention ne comprend ainsi aucun organe mobile de type turbine, aucune chambre d'émulsion de structure complexe, communiquant avec l'extérieur par des trous d'admission d'air, et aucune grille ou tamis de diffusion.The head according to the invention thus does not include any mobile turbine-type unit, no emulsion chamber of complex structure, communicating with the outside by air intake holes, and no grate or screen diffusion.
Grâce à sa structure simple, cette tête peut être réalisée en matière synthétique moulée.Thanks to its simple structure, this head can be made of molded synthetic material.
De préférence, la tubulure présente une forme sensiblement conique, s'élargissant dans le sens de la projection de la mousse. Les ouvertures des conduits ne sont ainsi pas perpendiculaires à la direction de projection de la mousse, mais inclinées vers l'extérieur, selon l'inclinaison de la paroi de la tubulure. Cette inclinaison favorise la déviation des jets par le bossage.Preferably, the tubing has a shape substantially conical, widening in the direction of the foam projection. The duct openings do not are thus not perpendicular to the direction of projection of the foam, but inclined outwards, according to the inclination of the wall of the tubing. This tilt favors the deflection of the jets by the boss.
Avantageusement, les conduits, parois, ouvertures, bossage et tubulure précités sont aménagés dans une douille fixée à l'extrémité libre de la tête.Advantageously, the conduits, walls, openings, the aforementioned boss and tubing are arranged in a socket attached to the free end of the head.
Le montage de cette douille sur la tête est particulièrement simple et facile à réaliser.The mounting of this socket on the head is particularly simple and easy to carry out.
De préférence, le bossage présente une forme arrondie, notamment hémisphérieure, favorisant la déviation des jets et évitant leur cassage avant qu'ils ne se percutent. Preferably, the boss has a shape rounded, especially hemispherical, favoring the deflecting the jets and preventing them from breaking before they collide.
De préférence également, la tête de pulvérisation comprend quatre conduits.Also preferably, the spray head includes four conduits.
Selon une forme de réalisation de l'invention, la tête comprend une soupape de commande de la projection, actionnée par un mécanisme. Avantageusement, la tête présente une partie en forme de crosse et une partie en forme de "canon" de projection, et comprend une gâchette pour commander la projection de mousse.According to one embodiment of the invention, the head includes a projection control valve, actuated by a mechanism. Advantageously, the head has a butt-shaped part and a projection cannon shape, and includes a trigger to control the foam projection.
Pour sa bonne compréhension, l'invention est à
nouveau décrite ci-dessous, en référence au dessin
schématique annexé représentant, à titre d'exemple non
limitatif, une forme de réalisation préférée de la tête de
génération et de projection de mousse qu'elle concerne.
La figure 1 représente la tête 1 de génération et de projection de mousse que comprend un appareil extincteur d'incendie (non représenté) . Cet appareil comprend un réservoir sous pression relié à la tête 1 par un tuyau flexible, ce réservoir contenant un mélange d'eau et d'un additif chimique propre à s'émulsionner avec l'air au niveau de la tête 1 pour constituer une mousse extinctrice.Figure 1 shows the generation 1 head and of foam projection that includes a device fire extinguisher (not shown). This device includes a pressure tank connected to the head 1 by a flexible hose, this tank containing a mixture of water and a chemical additive capable of emulsifying with air at head 1 to form a foam fire extinguisher.
Cette tête 1 présente un corps interne 5, un
boítier externe 6 enveloppant le corps 5, une soupape de
commande de la projection, actionnée par un mécanisme logé
dans le corps 5, une douille 7 assurant la génération de
la mousse et une bague 8 de montage de cette douille 7 sur
l'extrémité libre du corps 5. This head 1 has an internal body 5, a
external housing 6 enveloping the body 5, a valve
projection control, actuated by a housed mechanism
in the body 5, a socket 7 ensuring the generation of
the foam and a
Le corps 5 et le boítier 6 présentent chacun une
partie 5a, 6a formant une crosse et une partie 5b,6b
formant un "canon" de projection.The body 5 and the housing 6 each have a
Les parties 5a et 5b délimitent un conduit
principal 10 d'amenée de fluide, relié, au niveau de la
base de la partie 5a, au tuyau flexible (non représenté)
de l'appareil. Ce conduit 10 est unique au niveau de la
partie 5a et se divise au niveau de la partie 5b en deux
conduits latéraux 10a, 10b qui se rejoignent en arrière de
la douille 7.
Ainsi que cela est visible, cette partie 5b
comprend, entre les conduits latéraux 10a, 10b, une paroi
tubulaire 12 délimitant un alésage axial, cet alésage
étant fermé à son extrémité opposée à la douille 7. La
partie 5b comprend également un logement 13 transversal à
cet alésage, communiquant avec cet alésage et débouchant
sur l'extérieur du corps 5, de part et d'autre de ce
dernier.As can be seen, this part 5b
comprises, between the
La partie 5b comprend en outre une tubulure
filetée 15, faisant saillie coaxialement à l'alésage du
côté de l'extrémité libre de la tête 1, cette tubulure 15
comportant la douille 7 et la bague 8.Part 5b further includes tubing
threaded 15, projecting coaxially to the bore of the
side of the free end of the head 1, this
Un ressort 16 et une tige 17 sont engagés et
peuvent coulisser dans l'alésage. Le ressort 16 porte
contre le fond de l'alésage et contre l'une des extrémités
de la tige 17.A
L'autre extrémité de la tige 17 fait saillie de
l'alésage, et comprend un tampon 20 en matière résiliente.
L'extrémité du tampon 20 présente une forme conique,
tandis que la face de la douille 7 tournée vers
l'intérieur de la tête 1 comprend un siège conique 21 de
même pente. L'extrémité du tampon 20 peut venir au contact
de ce siège conique 21 avec étanchéité, et est normalement
maintenue dans cette position par le ressort 16, ce
dernier étant comprimé lorsque le tampon 20 est au contact
du siège 21. The other end of the rod 17 projects from
the bore, and comprises a
La tige 17 comprend également un logement
transversal 22, aménagé à hauteur et en face du logement
13. Les deux logements 13 et 22 sont traversés par une
gâchette 25, montée pivotante sur le corps 5 au moyen d'un
axe 26. Cette gâchette 25 fait saillie au-delà du boítier
6 au travers d'une fente 27, et vient porter contre la
paroi de la tige 17 délimitant le logement 22 du côté
opposé à l'extrémité libre de la tête 1.The rod 17 also includes a housing
transverse 22, arranged at height and opposite the
Une pression exercée sur la gâchette 25 de manière
à la rapprocher de la partie 6b permet de comprimer le
ressort 16 et d'écarter le tampon 20 du siège 21, donc de
commander l'écoulement du fluide vers l'extérieur, au
travers de la douille 7.A pressure exerted on the
Ce tampon 20 et ce siège conique 21 constituent
par conséquent la soupape précitée, et l'ensemble tige 17-gâchette
25-ressort 16 constitue le mécanisme de commande
de cette soupape.This
Le boítier 6 est constitué par deux
demi-coquilles, dont une est partiellement coupée sur la
figure 1. Ces deux demi-coquilles présentent des brides 30
de calage du corps 5 et sont assemblées l'une à l'autre
par engagement de tétons ou de vis que comprend l'une
d'elles dans des trous correspondants 31 aménagés dans la
paroi de l'autre.The case 6 consists of two
half-shells, one of which is partially cut on the
figure 1. These two half-shells have
La douille 7 est réalisée en une seule pièce, par moulage d'une matière synthétique. Ainsi que cela est plus particulièrement visible aux figures 3 et 4, elle comprend, outre le siège 21 :
- une
tubulure 35 de diffusion de la mousse produite, coaxiale ausiège 21 et présentant elle-même une forme conique s'élargissant dans la direction de projection ; - quatre
conduits 36 d'amenée du fluide destiné à mousser, qui sont régulièrement répartis sur la circonférence de la douille 7 ; cesconduits 36 se terminent au niveau de leur extrémité de sortie par desparois 37 orientées sensiblement perpendiculairement à la direction de projection, et débouchent dans la base de latubulure 35, par desouvertures 38 situées au même niveau les unes des autres ; - un
bossage 39 de forme sensiblement hémisphérique, situé en face de cesouvertures 38 et sensiblement à égale distance de celles-ci, et - une collerette externe 40, délimitant un
épaulement 41 apte à venir en appui contre latubulure 15, et unépaulement 42.
- a
tube 35 for diffusing the foam produced, coaxial with theseat 21 and itself having a conical shape widening in the direction of projection; - four
conduits 36 for supplying the fluid intended to foam, which are regularly distributed over the circumference of the sleeve 7; theseconduits 36 terminate at their outlet end withwalls 37 oriented substantially perpendicular to the direction of projection, and open into the base of thetube 35, byopenings 38 located at the same level from each other; - a
boss 39 of substantially hemispherical shape, located opposite theseopenings 38 and substantially equidistant from them, and - an
external flange 40, delimiting ashoulder 41 capable of coming into abutment against thetube 15, and ashoulder 42.
La bague 8 comprend, quant à elle, un épaulement
apte à venir en appui contre cet épaulement 42 et un
taraudage permettant son vissage sur le filetage de la
tubulure 15 de manière à serrer la douille 7 entre elle et
l'extrémité de cette tubulure 15.The
Le fluide sous pression, lorsqu'il traverse la
douille 7, est dévié brusquement par les parois 37 en
direction du bossage 39. Les quatre jets de fluide
rencontrent ensuite le bossage 39 qui les dévie de manière
à ce qu'ils se percutent mutuellement dans la base de la
tubulure 35 avant de rencontrer la paroi de la tubulure
35.The fluid under pressure, when it crosses the
socket 7, is deflected abruptly by the
La légère inclinaison vers l'extérieur des
ouvertures 38, résultant de la forme conique de la
tubulure 35, favorise la déviation des jets de fluide par
le bossage 39.The slight outward inclination of the
Au cours de ces deux déviations, de cette
rencontre avec le bossage 39, de cette percussion
mutuelle, suite à une émission des jets à partir de points
diamétralement opposés sur la circonférence de la douille
7, et de cette rencontre avec la paroi de la tubulure 35,
le fluide s'émulsionne parfaitement avec l'air ambiant
pour produire une mousse de bonne qualité et en quantité
importante.During these two deviations, from this
encounter with
La présente invention permet ainsi d'obtenir ce résultat au moyen d'une tête 1 ayant une structure très simple et peu onéreuse à fabriquer, ce qui permet de remédier aux inconvénients des têtes de génération et de projection de mousse selon la technique antérieure.The present invention thus makes it possible to obtain this result by means of a head 1 having a very structure simple and inexpensive to manufacture, which allows remedy the disadvantages of generation heads and projection of foam according to the prior art.
Claims (8)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9610805 | 1996-08-30 | ||
FR9610805A FR2752740B1 (en) | 1996-08-30 | 1996-08-30 | FOAM GENERATION AND SPRAY HEAD, PARTICULARLY FOR A FIRE EXTINGUISHING APPARATUS |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0829275A1 true EP0829275A1 (en) | 1998-03-18 |
EP0829275B1 EP0829275B1 (en) | 1999-12-01 |
Family
ID=9495439
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97420153A Expired - Lifetime EP0829275B1 (en) | 1996-08-30 | 1997-08-28 | Foam producing nozzle for fire extinguishing apparatus |
Country Status (9)
Country | Link |
---|---|
US (1) | US5921471A (en) |
EP (1) | EP0829275B1 (en) |
AT (1) | ATE187088T1 (en) |
DE (1) | DE69700870T2 (en) |
DK (1) | DK0829275T3 (en) |
ES (1) | ES2140194T3 (en) |
FR (1) | FR2752740B1 (en) |
GR (1) | GR3032657T3 (en) |
PT (1) | PT829275E (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE207389T1 (en) * | 1997-11-14 | 2001-11-15 | Concast Standard Ag | SLOT NOZZLE FOR SPRAYING A CONTINUOUS CAST PRODUCT WITH A COOLING LIQUID |
EP1707243A1 (en) | 2005-03-31 | 2006-10-04 | OSNA Technologien GmbH | Nozzle for small capacity fire extinguisher |
USD822457S1 (en) * | 2017-03-29 | 2018-07-10 | BB & F Holding Company LLC | Spray polyurethane foam jacket clip with additional support |
USD822456S1 (en) * | 2017-03-29 | 2018-07-10 | BB & F Holding Company LLC | Spray polyurethane foam jacket clip |
US10882227B2 (en) * | 2018-05-23 | 2021-01-05 | Faurecia Interior Systems, Inc. | Foam mix-head bushing and method of manufacturing a vehicle interior panel with the bushing |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB633862A (en) * | 1947-03-11 | 1949-12-30 | Nu Swift Ltd | Improvements in or relating to nozzles for the discharge of liquids |
US2527891A (en) * | 1946-10-01 | 1950-10-31 | Fmc Corp | Valved nozzle for fire fighting spray guns |
GB2171615A (en) * | 1985-03-01 | 1986-09-03 | Calmar Inc | Foam producing |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2289352A (en) * | 1938-12-22 | 1942-07-14 | Cardox Corp | Fire extinguisher discharge apparatus |
US2621076A (en) * | 1948-06-07 | 1952-12-09 | American Marsh Pumps Inc | Spray gun for fire apparatus and the like |
US2792260A (en) * | 1956-12-12 | 1957-05-14 | Scovill Manufacturing Co | Hose nozzle |
IT953065B (en) * | 1970-07-20 | 1973-08-10 | Knapp Alfons | PERFECTED DEVICE FOR AERIAL A JET OF WATER |
US3693884A (en) * | 1971-02-05 | 1972-09-26 | Duane S Snodgrass | Fire foam nozzle |
US3836076A (en) * | 1972-10-10 | 1974-09-17 | Delavan Manufacturing Co | Foam generating nozzle |
US5358179A (en) * | 1993-08-18 | 1994-10-25 | The Procter & Gamble Company | Atomization systems for high viscosity products |
CA2106526A1 (en) * | 1993-09-20 | 1995-03-21 | Allen Goodine | Foam producing venturi |
-
1996
- 1996-08-30 FR FR9610805A patent/FR2752740B1/en not_active Expired - Fee Related
-
1997
- 1997-08-06 US US08/906,826 patent/US5921471A/en not_active Expired - Fee Related
- 1997-08-28 DK DK97420153T patent/DK0829275T3/en active
- 1997-08-28 EP EP97420153A patent/EP0829275B1/en not_active Expired - Lifetime
- 1997-08-28 PT PT97420153T patent/PT829275E/en unknown
- 1997-08-28 DE DE69700870T patent/DE69700870T2/en not_active Expired - Fee Related
- 1997-08-28 ES ES97420153T patent/ES2140194T3/en not_active Expired - Lifetime
- 1997-08-28 AT AT97420153T patent/ATE187088T1/en not_active IP Right Cessation
-
2000
- 2000-02-14 GR GR20000400355T patent/GR3032657T3/en not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2527891A (en) * | 1946-10-01 | 1950-10-31 | Fmc Corp | Valved nozzle for fire fighting spray guns |
GB633862A (en) * | 1947-03-11 | 1949-12-30 | Nu Swift Ltd | Improvements in or relating to nozzles for the discharge of liquids |
GB2171615A (en) * | 1985-03-01 | 1986-09-03 | Calmar Inc | Foam producing |
Also Published As
Publication number | Publication date |
---|---|
DE69700870T2 (en) | 2000-03-16 |
EP0829275B1 (en) | 1999-12-01 |
PT829275E (en) | 2000-04-28 |
FR2752740B1 (en) | 1998-10-23 |
US5921471A (en) | 1999-07-13 |
GR3032657T3 (en) | 2000-06-30 |
DK0829275T3 (en) | 2000-05-22 |
DE69700870D1 (en) | 2000-01-05 |
ES2140194T3 (en) | 2000-02-16 |
FR2752740A1 (en) | 1998-03-06 |
ATE187088T1 (en) | 1999-12-15 |
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