SE201576C1

SE201576C1 -

Info

Publication number: SE201576C1
Authority: SE
Publication date: 1965-01-01

Description

KLASS INTERNATIONELLSVENSK B085 g:3 PATENT- OCH REGISTRERINGSVERKET Ans. 3328/1961 inkom den 29/3 1961 utlagd den 26/4 196 E H GREEN, ADDISON, ILL. USA Ventilaggregat for en aerosolbehallare Prioritet begard Iran den 30 mars 1960 (USA) Foreliggande uppfinning avser ett ventilaggregat for en aerosolbehallare, vilket har ett ventilhus, som medelst ett doppror kommunicerar med det inre av en behallare med ett material under tryck, en tatningsring, vilken dr monterad i tatningsingrepp med ventilhuset och har en central oppning, ett ventilorgan, som har ett genom den centrala Oppningen forskjutbart utskjutande r6rformigt parti i tatningsingrepp med ringen, vilket rorformiga parti är tippet vid sin Over ande och ovanfor sin nedre ande har en tvargaende oppning, en fjader, vilken normalt pressar ventilorganet till ett forsta lage i forhallande till tatningsringen, varvid den tvargaende Oppningen slutes medelst tatningsringen, och ett avtagbart spruthuvud, vilket dr monterbart pa ventilorganets rOrformiga parti och har en sprutOppning, som kommunicerar med en borrning i ventilorganet, varvid utovande av tryck medelst ett finger pa spruthuvudet astadkommer fOrflyttning av ventilorganet till ett andra lage, i vilket den tvargaende oppningen icke tillslutes av tatningsringen for att medgiva material att stromma genom den tvargaende oppningen, genom borrningen till sprutOppningen. CLASS INTERNATIONAL SWEDISH B085 g: 3 PATENT AND REGISTRATION AGENCY Ans. 3328/1961 filed on 29/3 1961 posted on 26/4 196 E H GREEN, ADDISON, ILL. The present invention relates to a valve assembly for an aerosol can, which has a valve housing which, by means of a dip tube, communicates with the interior of a can of pressurized material, a sealing ring which is mounted in sealing engagement with the valve housing and has a central opening, a valve member having a tubular projection slidable through the central opening in sealing engagement with the ring, which tubular portion is tipped at its upper end and above its lower spirit has a transverse opening, a spring, which normally presses the valve member to a first layer in relation to the sealing ring, the transverse opening being closed by means of the sealing ring, and a removable spray head, which is mounted on the tubular portion of the valve member and has a spray opening communicating with a bore in the valve member. application of pressure by means of a finger on the spray cap the head causes movement of the valve member to a second layer, in which the transverse opening is not closed by the sealing ring to allow material to flow through the transverse opening, through the bore to the spray opening.

Ett stort sortiment av produkter saluforas numera i behallare av aerosoltyp. Eftersom utmatnings- eller stromningsegenskaperna hos de olika produkter, som skola utmatas, variera i hog grad, är det nodvandigt att anordnad matoppningar eller -kanaler av skilda storlekar i ventiler for utmatning av olika produkter. Vid de fiesta utmatningsventiler aro matoppningarna eller -kanalerna anordnade i eller forbundna med element hos Utmatningsventilen, vilka aro permanent monterade i behallarna, varigenom endast en och samma produkt kan utportioneras medelst en sdrskild ventil. A large range of products is now marketed in aerosol-type containers. Since the discharge or flow characteristics of the various products to be discharged vary widely, it is necessary to provide feed openings or ducts of different sizes in valves for discharge of various products. In the case of most discharge valves, the feed openings or channels are arranged in or connected to elements of the discharge valve, which are permanently mounted in the containers, whereby only one and the same product can be dispensed by means of a separate valve.

Ett andamal med uppfinningen är ddrfOr att astadkomma en ny och forbattrad utmatningsventil for aerosolbehallare, vid vilken de ventilelement, som aro permanent monterade inuti behallaren, kunna vara i huvudsak identiska for vilken som helst produkt, som skall utmatas darigenom. Detta uppnas enligt uppfinningen darigenom, att spruthuvudet liar en huvudsakligen massiv, nedskjutande tapp, vilken är utformad i ett stycke darmed och är teleskopiskt upptagbar i den byre anden av det rorformiga partiet av ventilorganet och vilken liar ett yttre, i langdriktningen sig strackande spar, som tillsammans med borrningen I ventilorganet bildar en langsgaende, utmatningsmangden reglerande kanal. An object of the invention is therefore to provide a new and improved dispensing valve for aerosol containers, in which the valve elements, which are permanently mounted inside the container, can be substantially identical to any product to be dispensed thereby. This is achieved according to the invention in that the spray head has a substantially solid, projecting pin, which is formed in one piece therewith and is telescopically receivable in the upper part of the tubular portion of the valve member and which has an outer, longitudinally extending groove which together with the bore in the valve member forms a longitudinal, discharge quantity regulating channel.

For att uppfinningen helt skall forstAs hanvisas nu till bifogade ritningar, pa vilka fig. 1 är en axialsektionsvy genom en utmatningsventl for en aerosolbehallare, inrymmande uppfinningen, varvid ventilen visas i sift stangda lage, fig. 2 ãr en vertikalsektionsvy, -lager), huvudsakligen utmed linjen 2-2 i fig. 1, med ventilen visad i sitt Oppna 'age, fig. 3 är en vy i storre skala av ventilkolvorganet for ventilen enligt fig. 1 och 2, fig. 4 är en planvy uppifran av ventilkolvorganet, fig. är en planvy underifran av ventilkolvorganet, fig. 6 är en vertikalsektionsvy i storre skala av spruthuvudet enligt fig. 1 och 2, fig. 7 ãr en horisontalsektionsvy, tagen huvudsakligen utefter linjen 7-7 i fig. 6, fig. 8 är en horisontalsektionsvy i storre skala, tagen huvudsakligen utefter linjen 8-8 i fig. 1 och fig. 9, 10, 11 aro horisontalsektionsvyer, tagna genom tappartier hos spruthuvudena, vilka tappartier aro teleskopiskt inpassade i det byre rOr- -2 formiga partiet hos ventilkolvorganet enligt fig. 3, och visa ph olika satt utformade mfitkanaler, vilka begransas av en plan yta, ett rundat spar resp. ett trianguldrt spar, som är utformat i den yttre ytan hos tappartierna. In order that the invention may be fully understood, reference is now made to the accompanying drawings, in which Fig. 1 is an axial sectional view through a discharge valve for an aerosol can, embodying the invention, the valve being shown in sift closed layers, Fig. 2 is a vertical sectional view, mainly bearing along the line 2-2 in Fig. 1, with the valve shown in its Opna 'age, Fig. 3 is a view on a larger scale of the valve piston means for the valve according to Figs. 1 and 2, Fig. 4 is a plan view from above of the valve piston means, Figs. Fig. 6 is a larger sectional vertical sectional view of the spray head of Figs. 1 and 2; Fig. 7 is a horizontal sectional view taken substantially along line 7-7 of Fig. 6; Fig. 8 is a plan view; horizontal sectional view on a larger scale, taken substantially along the line 8-8 in Fig. 1 and Figs. Fig. 3, and show ph differently shaped mfit channels, which are delimited by a flat surface, a rounded spar resp. a triangular spar, which is formed in the outer surface of the pin portions.

I fig. 1 visas det ovre partiet av en aerosolbehallare 10, vilken har en ovre vagg 11, som fOrsedd med en oppen mynning, vilken har en uppathojd rullad krage 12. Utmatningsventilen for behallaren. 10 innefattar ett lock eller en huv 13 av metallplat, som har en rullad kant 14, vilken stracker sig over en tatningsring 15, som är anordnad Over kragen 12 hos behallarens 10 mynning. Locket 13 uppvisar vidare ett utatbojt rOrformigt parti 16, vilket stracker sig nedat frhn behhllarens 10 mynning fran den rullade kanten 14, en undre vagg 17 och ett uppsthende rorformigt parti 18, vilket har en ovre vdgg 19. En tatningsring 20, vilken Or utformad av gummi eller annat ldmpligt elastiskt material, Or anordnad i det r6rformiga partiet 18 intill undersidan pa den ovre vaggen 19. Ett cylindriskt ventilhus 21 Or vid sin ovre ande forsett med ett uth.tbockat fldnsparti 22, vilket anligger mot undersidan av tatningsringen 20. Tatningsringen 20 och ventilhuset 21 kvarhallas i ingrepp med undersidan ph den ovre vaggen 19 medelst en inatbockad ansats 23, som Or utformad i det rEirformiga partiet 18. Ventilhuset 21 Or anordnat med en bottenvagg 24, som har ett nedatriktat rorformigt parti 25, vilket Or pressat runt den ovre anden av doppror 26, vilket strdcker sig ned intill behallarens 10 botten. Fig. 1 shows the upper part of an aerosol container 10, which has an upper cradle 11, which is provided with an open mouth, which has a raised rolled collar 12. The discharge valve for the container. 10 comprises a lid or hood 13 of sheet metal, which has a rolled edge 14, which extends over a sealing ring 15, which is arranged over the collar 12 of the mouth of the container 10. The lid 13 further has an outwardly curved tubular portion 16, which extends downwards from the mouth of the container 10 from the rolled edge 14, a lower cradle 17 and an upright tubular portion 18, which has an upper wall 19. An sealing ring 20, which Or is formed of rubber or other resiliently elastic material, Or arranged in the tubular portion 18 adjacent the underside of the upper cradle 19. A cylindrical valve housing 21 is provided at its upper end with a bent-out fold portion 22, which abuts the underside of the sealing ring 20. The sealing ring 20 and the valve housing 21 is retained in engagement with the underside of the upper cradle 19 by means of an inwardly bent shoulder 23, which Or is formed in the tubular portion 18. The valve housing 21 is arranged with a bottom cradle 24, which has a downwardly directed tubular portion 25, which Or is pressed around the upper spirit of immersion tube 26, which extends down to the bottom of the container 10.

Ringen 20 och den ovre vaggen 19 hos locket 13 Oro anordnade med centrala oppningar 27 resp. 28, vilka dro beldgna i linje med varandra. Ett ventilkolvorgan 30, vilket bast visas i fig. 3-5, uppvisar ett kolvparti 31, som Or forskjutbart inpassat i ventilhuset 21 for att styras ddrav, ett Owe ansats-parti 32 med reducerad diameter, vilket liar en ovre yta, vars yttre kantparti Or anordnat att ingripa med undersidan ph. tatningsringen 20 intill den ddri utformade 6ppningens 27 kanter for att astadkomma en tatning daremellan, och ett uppatriktat rorformigt parti 33 med ytterligare reducerad diameter, vilket stracker sig genom oppningarna 27 och 28 i tatningsringen 20 resp. den byre vaggen 19 i tatande ingrepp med tatningsringen 20. Det rorformiga partiet 33 Or anordnat med en borrning 34, vilken Or Oppen vid sin ovre dude och gluten vid sin nedre dnde medelst ansatspartiet 32. Den nedre anden av kolvpartiet 31 är anordnad med ett reducerat parti 35, som bildar en nedatvand ansats 36. En skruvspiralfjader 38 Or anordnad mellan den nedatvanda ansatsen 36 och ventilens 21 bottenvagg 24 f8r att normalt trycka ventilkolvorganet 30 uppht till det i fig. 1 visade ldget, i vilket ansatspartiet 32 kvarhalles i tatande ingrepp med undersidan pa tatningsringen 20. Lockets 13 Owe vagg 19 och tatningsringens 20 ovre yta Oro snedstalld uppht intill de Ilan utformade oppningarna 28 resp. 27 med en vinkel av approximativt 0, varigenom ohOmmad rorelse uppa hos ventilkolvorganets 30 rorformiga parti 33 relativt thiningsringens 20 underldttas. The ring 20 and the upper cradle 19 of the lid 13 are arranged with central openings 27 and 27, respectively. 28, which drew beldgna in line with each other. A valve piston member 30, which is shown in Figs. 3-5, has a piston portion 31 which is slidably fitted in the valve housing 21 for control of the drive, an Owe shoulder portion 32 of reduced diameter, which has an upper surface, the outer edge portion of which Or arranged to intervene with the underside ph. the sealing ring 20 adjacent the edges of the opening 27 formed therein to provide a seal therebetween, and an upwardly directed tubular portion 33 of further reduced diameter, which extends through the openings 27 and 28 in the sealing ring 20 and 20, respectively. the rigid cradle 19 in gripping engagement with the sealing ring 20. The tubular portion 33 is provided with a bore 34, which is open at its upper dude and gluten at its lower end by means of the shoulder portion 32. The lower spirit of the piston portion 31 is provided with a reduced portion 35, which forms a downwardly extending shoulder 36. A helical spring 38 is provided between the downwardly extending shoulder 36 and the bottom wall 24 of the valve 21 for normally pushing the valve piston member 30 up to the joint shown in Fig. 1, in which the shoulder portion 32 is retained in gripping engagement with the underside of the sealing ring 20. The lid 13 Owe cradle 19 and the upper surface of the sealing ring 20 are inclined obliquely up to the Ilan-shaped openings 28 resp. 27 at an angle of approximately 0, whereby unimpeded movement up of the tubular portion 33 of the valve piston member 30 relative to the thinning ring 20 is supported.

Ett par i ldngdriktningen sig strackande, diametralt motsatta spar 40 Oro utformade ventilorganets 30 kolvparti 31 for att tillata stromning av den produkt, som skall utmatas, frail den ovre anden av dopproret 26 forbi kolvpartiet 31 av ventilkolvorganet 30 in i den Ovre Onden av ventilhuset 21. Ett par i tvarriktningen sig strackande, diametralt motsatta oppningar eller gluggar 41 Oro utformade i den nedre anden av ventilkolvorganets 30 rorformiga parti 33 med de nedre kanterna hos oppningarna 41 i linje med ovansidan ph ansatspartiet 32. Med ventilkolvorganet 30 i dess stdngda Idge, sasom visas i fig. 1, dro oppningarna 41 slutna medelst tatningsringen 20. DO ventilkolvorganet 30 forskjutes nedat mot verkan av fjadern 38 till sift i fig. 2 visade Oppna Idge, forskjutes emellertid ovansidan pa ansatspartiet 32 och oppningarna 41 bort Iran deras tatande ingrepp med tatningsringen 20, varigenom stromningen av produkten Iran den ovre anden ay ventilhuset 21 genom Oppningarna 41. in i borrningen 34 i ventilkolvorganets 30 rorformiga parti 33 medgives. Ett par i langdriktningen sig strackande slitsar 43, vilka Ora atskilda medelst ett tunt liv 44, Oro utformade i den nedre Auden. av kolvpartiet 31 vertikalt i linje med spa'ren 40, varigenom den produkt, sam strommar fran den owe linden ay dopproret 26 genom sparen 40 in i ,det ovre partiet av ventilhuset, kan passera forbi fjadern 38. A pair of longitudinally extending, diametrically opposite grooves 40 form the piston portion 31 of the valve member 30 to allow flow of the product to be discharged from the upper end of the dip tube 26 past the piston portion 31 of the valve piston member 30 into the upper end of the valve housing 21. A pair of transversely extending, diametrically opposed openings or slots 41. shown in Fig. 1, the openings 41 closed by means of the sealing ring 20. The valve piston member 30 is displaced downwards against the action of the spring 38 to the sieve shown in Fig. 2. 20, whereby the flow of the product Iran the upper spirit ay the valve housing 21 through the openings 41. into the drill The ring 34 in the tubular portion 33 of the valve piston member 30 is allowed. A pair of longitudinally extending slits 43, which Ora separated by a thin life 44, Oro formed in the lower Auden. of the piston portion 31 vertically in line with the spade 40, whereby the product flowing from the owe spring ay the dip tube 26 through the spout 40 into, the upper portion of the valve housing, can pass past the spring 38.

De hittills beskrivna elementen hos utmatningsventilen, vilka Oro permanent monterade i aerosolbehallaren 10, kunna ha standardform och -storlek for en sarskild aerosolbehallarstorlek, Oven. om ventilen skall anvandas for att utmata produkter, vilka ha mitt varierande stromnings- eller utmatningsegenskaper, sasom parfym och fang. Regleringen av flodet for sadana vitt skilda produkter sker medelst en ny form ay spruthuvud 46, vilket bast visas i fig. 6, 7 och 8. Spruthuvudet 46 Or anordnat med en nedtill oppen urtagning 47 och en i ett stycke armed utformad, centralt placerad, huvudsakligen massiv tapp 48, vilken stracker sig nedat Fran den ovre eller inre anden i urtagningen 47 och slutar vid en punkt, som Or beldgen huvudsakligen under 3 spruthuvudets 46 undre yta. Tappen 48 har en sadan storlek, att den är teloskopiglit inforbar i den oppna byre linden av ventilkolvorganets 30 rorformiga parti 33 i tiitande ingrepp clamed, och fir nara sin byre ande anordnad med ett forstorat parti 49, som bildar en nedatvand ansats 50, vilken ar anordnad att stodande anligga mot den ovre anden av ventilkolvorganets 30 rorformiga parti 33. En sprutoppning 53 i spruthuvudet 46 kommunicerar med en ringformig kanal 54, som begrdnsas av den cylindriska hylsans 47 vagg och det forstorade partiet 49 av tappen 48. The elements of the discharge valve described so far, which Oro are permanently mounted in the aerosol container 10, may have a standard shape and size for a particular aerosol container size, Oven. whether the valve is to be used to dispense products which have my varying flow or discharge properties, such as perfume and trap. The control of the flow for such widely differing products takes place by means of a new shape of the spray head 46, which is shown in Figs. substantially solid pin 48, which extends downwardly from the upper or inner spirit of the recess 47 and terminates at a point which is substantially below the lower surface of the spray head 46. The pin 48 is of such a size that it is teloscopically slidable into the open barrel of the tubular portion 33 of the valve piston member 30 in clamping engagement, and close to its barrel provided with an enlarged portion 49, which forms a downwardly projecting shoulder 50, which is arranged to abut against the upper spirit of the tubular portion 33 of the valve piston member 30. A syringe opening 53 in the syringe head 46 communicates with an annular channel 54 defined by the cradle of the cylindrical sleeve 47 and the enlarged portion 49 of the pin 48.

Tappen 48 ar foretradesvis pa ett parti av densamma, som ar vinkelforskjutet i forhallande till sprut- eller utmatningsoppningen 53, anordnad med ett utvandigt spar 56, vilket ar utformat i dess utvandiga yta och stracker sig utmed tappens 48 hela langd for att bilda en matkanal. Sparet 56 är oppet vid nedre linden av tappen 48 och har sin byre ande ansluten till den ringformiga kanalen 54 i spruthuvudet 46. The pin 48 is preferably on a portion thereof which is angularly offset relative to the spray or discharge opening 53, provided with an outer groove 56, which is formed in its outer surface and extends along the entire length of the pin 48 to form a feed channel. The recess 56 is open at the lower winding of the pin 48 and has its carrying spirit connected to the annular channel 54 in the spray head 46.

Da spruthuvudet 46 ar anbragt pi utmatningsventilen med tappen 48 inpassad i det rorformiga partiet 33 av ventilkolvorganet 30 och da ventilkolvorganet 30 forskjutes nedat till sitt Oppna lage, visat i fig. 2, genom att tryck utovas pa. spruthuvudet 46 med ett finger, strommar den produkt, som skall utmatas, fran dopproret 26 fOrbi kolvpartiet 31 av ventilkolvorganet 30, sasom ovan beskrivits, in i del ovre partiet av ventilhuset 21 genom oppningarna 41 in i borrningen 34 i ventilkolvorganets 30 rorformiga parti 33 och sedan genom matkanalsparet 56 och den ringformiga kanalen 54 till utmatningsoppningen 53. Vid tillverkning av spruthuvudet 46 bestammes tvarsektionsarean hos matkanalsparet 56 av den speciala produkt, som skall utmatas. Likasa kan utmatningsoppningen 53 Andras i storlek i enlighet med den produkt, som skall utmatas. Salunda kunna identiska aerosolbehallare, vilka ha identiska ventilAggregat med undantag for spruthuvudena -46, anvandas for utmatning av ett stort sortiment av produkter, vilka ha vitt skilda stromningsegenskaper, genom endast utvaljning av det spruthuvud 46, som har en matkanal 56 av lamplig storlek for den speciella produkt, som skall utmatas. When the spray head 46 is mounted on the discharge valve with the pin 48 fitted in the tubular portion 33 of the valve piston member 30 and when the valve piston member 30 is displaced downwards to its open bearing, shown in Fig. 2, by applying pressure to. the spray head 46 with one finger, the product to be discharged flows from the dip tube 26 past the piston portion 31 of the valve piston member 30, as described above, into the upper portion of the valve housing 21 through the openings 41 into the bore 34 in the tubular portion 33 of the valve piston member 30 and then through the feed channel pair 56 and the annular channel 54 to the discharge port 53. In making the spray head 46, the cross-sectional area of the feed channel pair 56 is determined by the particular product to be dispensed. Similarly, the dispensing opening 53 may be of different sizes according to the product to be dispensed. Thus, identical aerosol cans having identical valve assemblies with the exception of the spray heads -46 can be used to dispense a wide range of products having widely differing flow characteristics by simply selecting the spray head 46 having a feed channel 56 of appropriate size for it. special product to be dispensed.

Det hdr beskrivna nya ventilaggregatet dr sarskilt val lampat for fyllning av aerosofbehallare under tryck. Vid fyllning av sadana behallare under tryck avtages spruthuvudet 46 och insalltes fyllningselementet i det rorformiga partiet 33 av ventilkolvorganet 30 tillrackligt for att forskjuta ventilkolvorganet neat till doss Oppna lage. Eftersom matkanalen 56 ar utformad pa tappen 48 hos sprut huvudet 46, kunna behallarna fyllas under tryck med en Onskad produkt genom utmatningsventilerna med ett minimum av hinder for dettas stromning, varigenom tillates snabb fyllning av behallarna. Vid manga utmatningsventiler dr matoppningen eller -kanalen forbunden med de element hos ventilen, som aro permanent monterade i behallaren, varigenom den produkt, som pafylles under tryck, maste passera genom matkanalen eller -Oppningen, varigenom salunda tiden for fyllning av behallaren under tryck utstrackes 1 otillborlig grad. The new valve assembly described here has a special choice of lamp for filling aerosol tanks under pressure. When filling such containers under pressure, the spray head 46 is removed and the filling element is installed in the tubular portion 33 of the valve piston member 30 sufficiently to displace the valve piston member neatly into the open position. Since the feed channel 56 is formed on the pin 48 of the spray head 46, the containers can be filled under pressure with a desired product through the discharge valves with a minimum of obstruction to its flow, thereby allowing rapid filling of the containers. In many discharge valves, the feed opening or channel is connected to the elements of the valve which are permanently mounted in the container, whereby the product which is filled under pressure must pass through the feed channel or opening, thereby extending the time for filling the container under pressure. improper degree.

Funktionen hos den hopsatta ventilen vid utmatning av produkten fran aerosolbehallaren 10 dr sasom fOljer: Vid utovning av fingertryck pA spruthuvudet 46 forskjutes ventilkolvorganet 30 nedat till sitt Oppna lage, sasom visas i fig. 2, for att tillata stromning av produkten frau den Ovre dnden av dopprOret 26 genom ventilaggregatet till sprutoppningen 53. Sasom tidigare beskrivits, innefattar stromningspassagen for produkten fran den byre linden av dopproret 26 slitsarna 43, sparet 40, oppningarna 41 i det rorformiga partiet 33 av ventilkolvorganet 30, matkanalsparet 56 och den ringformiga kanalen 54, vilken kommuniserar med sprutoppningen 53. The function of the assembled valve in discharging the product from the aerosol container 10 is as follows: When exerting finger pressure on the spray head 46, the valve piston member 30 is slid down to its open bearing, as shown in Fig. 2, to allow flow of the product from the upper end of the immersion tube 26 through the valve assembly to the syringe port 53. As previously described, the flow passage for the product from the byre wrap of the immersion tube 26 includes the slots 43, the groove 40, the openings 41 in the tubular portion 33 of the valve piston member 30, the food channel pair 56 and the annular channel 54, which communicates with the syringe opening 53.

Den utvandiga matkanalen kan givetvis ha vilken som heist lamplig form, sasom visas i fig. 9, 10 och 11. I fig. 9 ar en pa ett spruthuvud anordnad tapp 60, vilken ar teloskopiskt inpassad 1 det ovre rorformiga partiet 33 av ventilkolvorganet 30, i sin utvandiga yta anordnad med en. i langdriktningen sig strackande. plan yta 61 for bildandet av en matkanal meillan den plana ytan 61 och horrningen 34 i det rorformiga ventilpartiet 33. I fig. 10 och 11 visas pa. spruthuvudet anordnade tap-par 63 och 64, vilka i sin yttre yta aro anordnade med ett i langdriktningen sig strackande rundat spar 65 resp. ett i langdriktningen sig strackande V-formigt eller triangulart spar 66 for att bilda lampliga matkanaler. The external feed channel can of course have any suitable shape, as shown in Figs. 9, 10 and 11. In Fig. 9 there is a pin 60 arranged on a spray head, which is teloscopically fitted in the upper tubular portion 33 of the valve piston member 30, in its outer surface arranged with a. in the longitudinal direction stretching. flat surface 61 for the formation of a feed channel between the flat surface 61 and the horn 34 in the tubular valve portion 33. In Figs. 10 and 11 it is shown. the spray head arranged taps 63 and 64, which in their outer surface are arranged with a longitudinally extending rounded groove 65 and 65, respectively. a longitudinally extending V-shaped or triangular groove 66 to form suitable food channels.

Bet torde framga, att konstruktionen eller arrangemanget av den ovan beskrivna utmatningsventilen kan modifieras, utan att den i bifogade patentansprak angivna uppfinningstanken frangas. It will be apparent that the construction or arrangement of the discharge valve described above can be modified without departing from the spirit of the invention set forth in the appended patent claims.

Claims

Patent claim:

A valve assembly for an aerosol container, which has a valve housing (21), which by means of a dip tube (26) communicates with the interior of a container (10) with a material under pressure, a sealing ring (20), which is mounted in sealing engagement with the valve housing (21) 4 and has a central opening (27), a valve member (30), which has a projecting tubular portion (33) slidably projecting through the central opening (27) in sealing engagement with the ring (20), which tubular portion (33 ) is the opening at its upper spirit and above its lower spirit there is a permanent opening (41), a spring (38), which normally presses the valve member (30) to a first position in relation to the sealing ring (20), the transverse the opening (41) is closed by means of the sealing ring (20), and a removable spray head (46), which is mountable on the tubular portion (33) of the valve member (30) and here a spray opening (53), which communicates with a bore (34) in the valve member (30), applying pressure by means of a finger on spray the head (46) causes movement of the valve member (30) to a second age, in which the transverse opening (41) is not closed by the sealing ring (20) to allow material to flow through the transverse opening (41), through the bore (34). ) to the syringe opening (53), characterized in that the spray head (46) has a substantially solid, projecting pin (48), which is formed in one piece therewith and is telescopically receivable in the upper end of the tubular portion (33) of the valve member. (30) and which has an outer, longitudinally extending groove (56) which, together with the bore (34) in the valve member (30), forms a longitudinal, flow-regulating channel.

Valve assembly according to claim 1, wherein the valve means (30) comprises an enlarged annular shoulder portion (32) adjacent the lower end of the tubular portion (33) for sealing engagement with the underside of the sealing ring (20), characterized in that it. tvargende iippningen, (41) in the riirformiga part (33) is the beldgen immediately adjacent to the ansatspartiet ($ 2). Valve assembly according to claim 1 or 2, in which the valve means (30) comprises an enlarged piston portion (31), which is located below the sealing ring (20) and is arranged with a sliding fit in the housing (21), can be marked by a pair in the direction of travel. extending grooves (40) which are formed in diametrically opposite sides of the piston portion (31) to allow material flow from the dip tube (26), past the piston portion (31) and into the upper portion of the housing (21).

Valve assembly according to claim 2 or 3, characterized by a second transversely extending opening (41) in the tubular portion (33), which is diametrically opposite the first transverse opening (41) and the bellows immediately above the shoulder portion (32) on the valve member (30). Request publications: Patents frein Switzerland 330 767; Great Britain 801 899; USA 2 854 176.