DK157122B - Dosing apparatus for pasteous products - Google Patents
Dosing apparatus for pasteous products Download PDFInfo
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- DK157122B DK157122B DK90580A DK90580A DK157122B DK 157122 B DK157122 B DK 157122B DK 90580 A DK90580 A DK 90580A DK 90580 A DK90580 A DK 90580A DK 157122 B DK157122 B DK 157122B
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DK i5712 2 BDK i5712 2 B
tt
Opfindelsen angâr et doseringsapparat til pastase produkter og med en beholder, der indeholder det pàgældende produkt og ved sin ene ende er lukket med et tætnende mod beholderens indervæg glidende stempe1 samt ved sin anden ende er lukket af en med mindst én âbning forsynet 5 skillevæg, hvilken beholder er forsynet med et hovedstykke, der dækker skillevæggen og har en pâfaringsdel, og som sammen med skillevæggen danner et pumpekammer, der har et ved ydre pâvirkning foranderligt volumen, og som er adskilt fra beholderen ved hjælp af en farste kontraventil med en lukkedel, der dækker âbningen i 10 skillevæggen og kun kan âbnes i retning mod pumpekammeret, og fra pâfaringsdelens munding ved hjælp af en anden kontraventil, der kun kan âbnes i retning mod denne munding.BACKGROUND OF THE INVENTION The invention relates to a dosing apparatus for pastase products and to a container containing the product in question and closed at one end with a sealing piston sliding against the inner wall of the container1 and at its other end closed by a partition provided with at least one opening. the container is provided with a head covering the partition and having a fitting part, which together with the partition forms a pumping chamber having a volume which can be changed by external influence and which is separated from the container by a colored check valve with a closing part which covers the opening in the partition and can only be opened in the direction of the pump chamber, and from the mouth of the fitting part by means of another check valve which can only be opened in the direction of this mouth.
Ved et sâdant doseringsapparat, der er kendt fra USA patentskrift nr. 3.361.305, er pumpekammeret begrænset af en skillevæg, der strækker 15 sig kegleformet konkavt ind i beholderens indre, og af en kegleformet modsat hvælvende membran, idet en udlabskanal udmunder i pumpekammeret pâ et sted mellem skillevæggen og membranen og som den anden kontraventil har en kugle med tilharende ventilsæde. I skillevæggen findes flere âbninger, der hver især er afdækket af mod skillevæggen 20 liggende elastiske klapper, sâ at disse âbninger sammen med deres tilharende klapper danner en farste kontraventil. Ved fyldning af beholderen med produktet, fores dette efter indsætning af det tætnende mod beholderens indervæg glidende stempel ind i pumpekammeret gennem den farste kontraventils âbninger, sâ at dette 25 kammer i sin ekspanderede tilstand er i hovedsagen fuldstændigt fyldt med det pàgældende produkt. Hvis man for at udtamme produktet udefra pâvirker membranen med et tryk, f.eks. ved hjælp af tommelfingeren, formindskes pumpekammerets volumen, hvorved det produkt, der far befandt sig i pumpekammeret, udtammes, idet det fores ud gennem den 30 anden kontraventil, der derved âbnes, og gennem udlabskanalen. Ved denne volumenformindskelse af pumpekammeret kan produktet ikke stramme tilbage i beholderen, idet de elastiske klapper trykkes fast mod âbningerne i skillevæggen, og den farste kontraventil er altsâ lukket. Hvis pumpekammerets volumen efter fortrængning af produktet 35 fra dette pumpekammer igen forages ved, at membranen frigives, lukker den anden kontraventil sig som falge af den optrædende sugevirkning, hvorved ingen luft udefra kan stramme gennem udlabskanalen og ind i 2In such a dosing apparatus known from United States Patent No. 3,361,305, the pump chamber is limited by a partition extending cone-shaped concavely into the interior of the vessel, and by a cone-shaped opposite vaulting membrane, an outlet channel opening into the pump chamber of the somewhere between the partition wall and the diaphragm and as the second check valve has a ball with associated valve seat. In the partition, there are several openings, each of which is covered by elastic flaps lying against the partition 20, so that these openings together with their associated flaps form a farthest non-return valve. When filling the container with the product, after insertion of the sealant piston sliding against the inner wall of the container, this is inserted into the pump chamber through the openings of the first check valve, so that this chamber in its expanded state is substantially completely filled with the product concerned. If, in order to exhaust the product from the outside, the membrane is actuated by a pressure, e.g. by means of the thumb, the volume of the pump chamber is reduced, thereby discharging the product which was in the pump chamber as it is discharged through the second non-return valve thus opened and through the outlet duct. By this volume reduction of the pump chamber, the product cannot be tightened back into the container, as the elastic flaps are pressed firmly against the openings in the partition and the farthest check valve is thus closed. If the volume of the pump chamber after displacement of the product 35 from this pump chamber is again caused by the release of the diaphragm, the second non-return valve closes as a result of the occurring suction effect, whereby no outside air can tighten through the outlet duct and into the
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pumpekammeret. Sont falge af det i pumpekammeret pâ grund af volumen-forsgelsen opstâede undertryk âbnes den farste kontraventil imidlertid, idet de elastiske klapper laftes fra âbningerne i skillevæggen, sâ at noget af produktet kan stramme ud af beholderen 5 og ind i pumpekammeret, hvorved dette igen fyldes med det produkt, der skal udtanunes. Dette kendte doseringsapparat arbejder imidlertid ret unajagtigt, hvad angàr den udtamte produktmængde, idet membranen kun fares tilbage pâ grund af sin egen elasticitet og er udsat for materialesvækkelser, ligesom den ogsâ kun tillader et begrænset 10 maksimalt volumen for pumpekammeret.pump chamber. However, as a result of the negative pressure created in the pump chamber due to the volume seal, the farthest check valve is opened, the elastic flaps being lifted from the openings in the partition so that some of the product can protrude from the container 5 and into the pump chamber, which is then filled again. with the product to be toned. However, this known dosing apparatus works rather inaccurately with regard to the quantity of product discharged, the diaphragm only being retracted due to its own elasticity and subjected to material degradation, as well as allowing only a limited maximum volume of the pump chamber.
Ved opfindelsen sages tilvejebragt et doseringsapparat af den indled-ningsvis nævnte art, der pâ trods af en simpel konstruktion giver mulighed for en fintfalende dosering af den afgivne produktmængde, og som er billig og simpel at fremstille og let at montere.The invention is said to provide a dosing apparatus of the kind mentioned initially which, despite a simple construction, allows for a finely dosed dosage of the quantity of product delivered, which is inexpensive and simple to manufacture and easy to assemble.
15 Ved et doseringsapparat af den nævnte art opnâs dette ifalge opfindelsen ved, at pumpekammeret er udformet i hovedsagen cylindrisk, at hovedstykket har et udefra betjeneligt, i forhold til skillevæggen bevægeligt pumpeelement, der tjener til ændring af pumpekammerets volumen, og som pâvirkes af en tilbagefaringsfjeder til frembringelse 20 af tilbagefaringsbevægelsen i retning bort fra skillevæggen, at ho-vedstykkets pâfaringsdel har en udtomningskanal, der forlober side-værts forsat i forhold til skillevæggens àbning, og at der i pumpekammeret er anbragt en indsats, pâ hvilken i det mindste lukkedelen af den ene af de to kontraventiler er anbragt, idet den forste 25 kontraventils lukkedel er udformet i ét stykke med indsatsen.In a dosing apparatus of the kind mentioned, this is achieved according to the invention in that the pump chamber is substantially cylindrical in that the headpiece has an externally operable pump element which is adjustable to the volume of the pump chamber and which is actuated by a return spring. for generating the return movement in a direction away from the partition, that the head portion of the body has a discharge channel extending laterally with respect to the partition opening, and that an insert is provided in the pump chamber at which at least the closure portion of the one of the two non-return valves is disposed, the first part of the non-return valve 25 being integrally formed with the insert.
Ved den i hovedsagen cylindriske udformning af pumpekammeret, hvis volumen ændres ved relativ bevsgelse af en stempelflade i forhold til det cylindriske pumpekammers indervæg, kan pumpekammerets volumen, ogsâ nâr dette er forholdsvis stort, ændres eller styres reprodu-30 cerbart ved den pâgældende forskydning af stempelfladen. Ved hjælp af den separate tilbageforingsfjeder til frembringelse af den relative bevægelse mellem stempelfladen og det cylindriske pumpekam-mer i retning af en volumenforogelse sikres en sikker tilbageforing til doseringsapparatets hviletilstand ogsâ efter at doseringsappa-35 ratet er blevet betjent flere gange. Doseringsapparatet îfelge opfindelsen er opbygget af fâ og simple dele, hvorfor det er drift- sikkert og billigt at fremstille.In the generally cylindrical configuration of the pump chamber, the volume of which is changed by relative movement of a piston surface relative to the inner wall of the cylindrical pump chamber, the volume of the pump chamber, when relatively large, can be reproduced or controlled reproducibly by the displacement of the piston surface in question. . By means of the separate return spring to produce the relative movement between the piston surface and the cylindrical pump chamber in the direction of a volume increase, a secure return to the dosing state of the dosing apparatus is ensured even after the dosing apparatus has been operated several times. The dosing apparatus according to the invention is made up of few and simple parts, which is why it is safe and cheap to manufacture.
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Opfindelsen vil i det falgende blive nærmere forklaret under henvis-ning til tegningen, pâ hvilken 5 fig. 1 viser et længdesnit i en farste udfarelsesform for doserings-apparatet ifalge opfindelsen i hviletilstanden, fig. 2 set i snit den i fig. 1 viste udfarelsesform, hvor venstre snithalvdel er vist med en volumenformindskelse, medens hajre snit-halvdel er vist med en volumenforagelse af pumpekammeret, 10 fig- 3 et længdesnit i en anden udfarelsesform for doseringsapparatet ifalge opfindelsen, fig. 4 et længdesnit i doseringsapparatets hovedstykke efter linjen τν,ν-τν,ν i fig. 3, fig. 5 det samme snit med en maksimal volumenformindskelse for 15 pumpekammeret, fig. 6 i starre mâlestok og set i snit en sprajtestabt del, der danner én af kontraventilerne, fig. 7 i starre mâlestok og set fra oven den i fig. 6 viste sprajte-stabte del og 20 fig. 8 et snit efter linjen VIII-VIII i fig. 3.The invention will be explained in more detail below with reference to the drawing, in which: FIG. 1 shows a longitudinal section in a farthest embodiment of the dosing apparatus according to the invention in the resting state; FIG. 2 is a sectional view of the one shown in FIG. 1, the left section half is shown with a volume decrease, while the right section half is shown with a volume contamination of the pump chamber, FIG. 3 is a longitudinal section in another embodiment of the dosing apparatus according to the invention; 4 is a longitudinal sectional view of the dosing apparatus along the line τν, ν-τν, ν of FIG. 3, FIG. 5 shows the same section with a maximum volume reduction for the pump chamber; FIG. 6 in a rigid scale and in section, a syringe-lost part forming one of the check valves; FIG. 7 in a rigid scale and seen from above the one in FIG. 6 shows the spray-stacked portion and FIG. 8 is a sectional view taken along line VIII-VIII of FIG. Third
Ved den i fig. 1 og 2 viste farste udfarelsesform har doseringsorga-net en i hovedsagen cylindrisk beholder 1, der er af plast, f.eks. polypropylen, og i hvilken det produkt, der skal udtammes, fyldes.In the embodiment shown in FIG. 1 and 2, the metering means has a generally cylindrical container 1 which is of plastic, e.g. polypropylene and in which the product to be discharged is filled.
Beholderen 1 har et stempel 2, der lukker beholderens nederste ende 25 og tætnende glider mod beholderen 1's indre cylindervæg for ved udtamning af produktet fra beholderen fortlabende at formindske volumenet, sâ at der, selv om beholderens ydre form forbliver den samme, ikke opstàr noget undertryk i beholderen og heller ikke kan samle sig luft i denne. Beholderen 1 har ved sin averste ende et 30 hovedstykke 3, der er udformet som en i hovedsagen cylindrisk muffe, som glidende er fart pâ beholderen l's ydre cylinderflade. Ved den viste udfarelsesform er den averste del af beholderen l's ydre cylinderflade med dette formâl forsat noget indefter, sà at hovedstykket 3's ydre cylinderflade i hovedsagen flugter med den ydre 35 cylinderflade pâ den avrige del af beholderen 1.The container 1 has a piston 2 which closes the lower end 25 of the container and seals slidably against the inner cylinder wall of the container 1 in order to reduce the volume by withdrawal of the product from the container, so that, although the outer shape of the container remains the same, no negative pressure is created. in the container and also cannot collect air in it. The container 1 has at its aft end a head piece 3 which is formed as a generally cylindrical sleeve which slides smoothly on the outer cylinder surface of the container 1. In the embodiment shown, the outermost portion of the outer cylinder surface of the container 1 is, for this purpose, slightly inclined inwards, so that the outer cylinder surface of the body piece 3 aligns substantially with the outer cylinder surface of the other part of the container 1.
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En skillevsg 4 mellem heholderen og hovedstykket tjoner I forbindelss med den i beholderen l's længderetning forskydelige înuffe som stem-pelflade, sâ at volumenet af et af denne stempelflade og muffens indre rum begrænset pumpekammer ændres ved den relative bevægelse 5 mêllem muffen og skillevæggen 4. I skillevæggen 4 findes en âbning 5, ved hvilken der er udformet et ventilsæde, der samvirker med et ventildæksel 6, som igen er lejret ved hjælp af elastiske bând 7.A partition 4 between the holder and the head unit is connected to the longitudinally displaceable sleeve as the piston surface, so that the volume of one of this piston surface and the inner space of the sleeve limited pump chamber is changed by the relative movement 5 between the sleeve and partition 4. partition 4 is provided with an opening 5 on which a valve seat is formed which cooperates with a valve cover 6, which in turn is mounted by means of elastic bands 7.
Inde i muffen findes en som tilbagaferingsfjeder virkende elastisk manchet S, der i hovedsagen forlaber parallelt med og ligger an mod 10 muffens cylinderflade, og hvis ene ende er fastgjort ved skillevæggen 4, medens den anden ende er fastgjort ved muffen. Hovedstykket 3's muffe udmunder foroven i en pâfsringsdel 9 eller en muffedel 10, der kan optage denne.Inside the sleeve there is a resilient cuff S acting as a spring, which extends substantially parallel to and abuts against the cylinder surface of the sleeve, one end of which is secured to the partition wall 4 while the other end is secured to the sleeve. The sleeve of the headpiece 3 opens at the top of a sleeve portion 9 or a sleeve portion 10 which can accommodate it.
Ved den her viste udferelsesform findes ved den nederste ende af 15 pâfaringsdelen 9 en elastisk klap 11, der lukker pâfaringsdelens gennemlabskanal, og som med demies indervsg danner et farste grænsefladeomrâde 12, der for dannelse af et hængsel mellem klappen og pàfsringsdelens indervæg er udformet elastisk, men dog forholdsvis stabilt. I hovedsagen over for dette farste grænsefladeomrâde 12 er 20 der udfonaet et andet grænsefladeomrâde 13, der derimod er forholdsvis tyndt, men alligevel lukker pâforingsdelens germeraiab skanal fuldstændigt.In the embodiment shown here, at the lower end of the retaining member 9, there is an elastic flap 11 which closes the passage passage of the retaining member and which, with the inner part thereof, forms a farthest interface area 12 formed to form a hinge between the flap and the inner wall of the retaining member. yet relatively stable. Essentially to this farthest interface area 12, another interface area 13 is eviscerated, which, on the other hand, is relatively thin, yet completely closes the germ portion of the casing portion.
Ved en fuldstændig indfsring af pâfaringsdelen 9 i hovedstykket 3's muffedel 10 gennemskærer et ved muffedelen 10's indre cylinderflade 25 udformet knivagtigt fremspring 14 det forholdsvis tynde andet grænsefladeomrâde af den elastiske klap, sâ at denne sâ med sit som hængsel virkende farste grænsefladeomrâde er bevægelig i pâfarings-delen 9's gennemlabskanal. Ben elastiske klap 11 danner sâ en anden kontraventil, medens en farste kontraventil dannes i skillevæggen 4 30 af ventildækslet 6 og âbningen 5.By fully inserting the retaining member 9 into the sleeve portion 10 of the body piece 3, a knife-like protrusion 14 formed at the inner cylinder surface 25 of the sleeve member 10 intersects the relatively thin second interface region of the elastic flap so that it acts as its hinged farthest interface with its hinged surface. section 9's passageway. Leg elastic flap 11 then forms a second check valve, while a first check valve is formed in the partition wall 4 30 of the valve cover 6 and the opening 5.
Som det især fremgâr af tegningens fig. 2, formindskes pumpekammerets volumen, nâr hoveddelen 3 skydes rsdefter som vist i det venstre delsnit, hvorved det i pumpekammeret værende produkt udtammes gennem pâfaringsdelen 9's gennemlabskanal, idet den anden kontraventil âbnes 35 under pâvirkning af det tryk, der opbygges, hvilket sker ved, atAs can be seen in particular from FIG. 2, the volume of the pump chamber is reduced as the main part 3 is then pushed as shown in the left section, whereby the product present in the pump chamber is discharged through the passage duct of the part 9, opening the second non-return valve 35 under the influence of the pressure which builds up,
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5 klappen 11 svinges om det som hængsel virkende forste grænseflade-omrâde. Pâ grund af det stigende tryk ved formindskelsen af pumpekam-merets volumen trykkes ventildækslet 6 mod det ved âbningen 5 udformede ventilsæde, sâ at der ikke eksisterer nogen forbindelse 5 mellem beholderen l's indre og pumpekanuneret. Som det tydeligt fremgâr af fig. 2, bliver den som tilbageforingsfjeder virkende elastiske manchet 8 ved bevægelse af hovedstykket 3 for formindskelse af pumpekammerets volumen deformeret sâledes, at den buler indefter i pumpekanuneret.The flap 11 is pivoted about the first interface area acting as a hinge. Due to the increasing pressure at the decrease of the pump chamber volume, the valve cover 6 is pressed against the valve seat formed at the aperture 5 so that no connection 5 exists between the interior of the container 1 and the pump cannon. As can be seen clearly in FIG. 2, the resilient cuff 8 acting as a return spring is deformed by movement of the head piece 3 to reduce the volume of the pump chamber so that it bumps into the pump cannula.
10 Nâr hovedstykket 3 derefter ikke længere pâvirkés til bevægelse i retning nedefter, glider det under indvirkning af tilbageforingsfje-derens kraft igen opefter, hvorved pumpekammerets volumen sâ igen foreges. Som folge af denne forogelse af pumpekammerets volumen opstâr der i pumpekanuneret et undertryk, der forer til en ojeblikke-15 lig lukning af klappen 11, hvilket understottes af den i pâforingsde-len 9's gennemlobskanal endnu værende del af det produkt, der skal udtommes, og som ved en forogelse af pumpekammerets volumen delvis suges tilbage igen. Som folge af undertrykket i pumpekanuneret bliver ventildækslet 6 imidlertid ogsà loftet op fra âbningen 5 i skille-20 væggen 4, sâ at produktet kan stromme ind i pumpekanuneret fra det indre af beholderen 1, sâ at pumpekanuneret igen fyldes med produktet, hvorefter ventildækslet 6 igen sænker sig ned mod âbningen 5, nâr der er sket en trykudiigning mellem det indre af pumpekanuneret og det indre af beholderen 1.10 When the headpiece 3 is then no longer actuated to move downwardly, under the action of the force of the return spring, it slides again upwardly, thereby releasing the pump chamber volume again. As a result of this increase in the volume of the pump chamber, a negative pressure in the pump cannone results in an immediate closure of the flap 11, which is supported by the portion of the product to be emptied in the passage passage 9 of the feed section 9, and which is partially re-sucked by increasing the volume of the pump chamber. However, as a result of the negative pressure in the pump cannon, the valve cover 6 is also raised from the opening 5 in the partition wall 4, so that the product can flow into the pump cannon from the interior of the container 1, so that the pump cannon is again filled with the product and the valve cover 6 again. descends toward opening 5 when a pressure increase has occurred between the interior of the pump cannon and the interior of the container 1.
25 I fig. 3-8 er der vist en anden udforelsesform for doseringsapparatet ifolge opfindelsen, og de dele, der svarer til delene i den forste udforelsesform, er forsynet med de samme henvisningsbetegnelser som i fig. 1 og 2.In FIG. 3-8, another embodiment of the dosing apparatus according to the invention is shown, and the parts corresponding to the parts of the first embodiment are provided with the same reference numerals as in fig. 1 and 2.
Den anden udforelsesform adskiller sig i hovedsagen fra den forste 30 udforelsesform ved udformningen af hovedstykket 3. I dette hoved- stykke er der bevægeligt anbragt et stempel 15, der, nâr det sænkes, formindsker pumpekanuneret 16's volumen. Som det tydeligt fremgâr af fig. 3 og 4 er den overste manuelt betjenelige del af stemplet 15 udformet som en omtrent retvinklet knap, medens tilbageforings-35 fjederen 8 har form af en bândfjeder, der strækker sig kegleformet 6The second embodiment differs substantially from the first embodiment in the design of the headpiece 3. In this head, a plunger 15 is movably disposed which, when lowered, reduces the volume of pump cannon 16. As can be seen clearly in FIG. 3 and 4, the upper manually operable portion of the plunger 15 is formed as a roughly right-angled button, while the return spring 8 is in the form of a band spring extending cone-shaped 6
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opefter genaom en âbning i sfceropelflad&a c*g ind i et hu'.ri'œ, dsr darmes af den knapformede, retvinklede yderligere stempeldel.upwards through an aperture in the spherople surface & a c * g into a hu'.ri'œ, dsr is guided by the button-shaped, right-angled additional piston part.
Foruden det i hovedsagen cylindriske pumpekammer 16 har hovedstykket 3 en kanalformet del 17, der gennem en forbindelsestunnel 18 er 5 forbundet med pumpekammeret 16's cylindriske del.In addition to the generally cylindrical pumping chamber 16, the headpiece 3 has a channel-shaped portion 17 which is connected through the connecting tunnel 18 to the cylindrical portion of the pumping chamber 16.
Denne forbindelsestunnel 18 darmes, sois det især fremgâr af fig. 6 og 7, af en i ét stykke sprajtestabt del 19, der samtidigt har elastiske klapper for den farste og den anden kontraventil. Den elastiske klap 20 dækker igen en forbindelsesâbning 5 i skilleveggen 4 mellem behol-10 deren 1 og hovedstykket 3. Klappen 21 lukker derimod den kanalformede del 17 af pâfaringsdelen 9's gennemlabskanal. Som det fremgâr af fig.This connection tunnel 18 is intestinal, as is particularly apparent from FIG. 6 and 7, of a one-piece injection-molded part 19, which simultaneously has elastic flaps for the farthest and the second non-return valve. The elastic flap 20 again covers a connection opening 5 in the partition 4 between the container 10 and the headpiece 3. The flap 21, on the other hand, closes the channel-shaped part 17 of the passage passage 9 of the fitting part 9. As can be seen from FIG.
6 og 7 har den sprsjtestebte del 19 en i ét deriaed udfcriset blad-fjederagtig del 22, der pâvirker den elastiske klap 20 i lukkeret-ningen. Hængslet mellem klappen 20 og den avrige del af den sprajte-15 stabte del 19 kan, som det fremgâr af fig. 7, dannes af tilsvarende udsparinger 23 pà den spraj testabte dels underside.6 and 7, the injection molded portion 19 has an integral leaf-spring-shaped portion 22, which exerts the resilient flap 20 in the closing direction. The hinge between the flap 20 and the remaining portion of the spray-stacked portion 19 can, as can be seen in FIG. 7, is formed by corresponding recesses 23 on the underside of the spray test portion.
Som det ses af fig. 3 kan pâfaringsdelen 9 være forsynet med en lukkeklap 24 til lukning af doseringsapparatet.As seen in FIG. 3, the application portion 9 may be provided with a closure flap 24 for closing the metering apparatus.
Der kan naturligvis valgfrit anvendes pâfaringsdele af forskellig 20 starrelse, lsngde, form og avrxg udformning sammen med doseringsappa-ratet for at lette bestemte anvendelser af det i beholderen værende produkt.Of course, application parts of different sizes, lengths, shapes and sizes can be used with the dosing apparatus to facilitate specific applications of the product contained in the container.
Pâ den anden side kan pâfaringsdelen iœidlertid ogsâ udformes î ét med hovedstykket, medens det til specielle anvendelser med meget 25 lange pâfaringsdele, specielt inden for det medicinske omrâde til f.eks. anal og vaginal administration, allerede af fremstillings-mæssige ârsager er fordelagtigt at anvende en todelt udformning.On the other hand, however, the appliance portion may also be formed integrally with the headpiece, while for special applications with very long appliance portions, especially in the medical field, e.g. anal and vaginal administration, already for manufacturing reasons, is advantageous to use a two-part design.
Virkemâden for den i fig. 3-8 viste udfarelsesform er principielt den samme som for den farste udfarelsesform, idet volumenformindskelsen 30 af pumpekammeret 16 dog nu sker ved nedtryknxng af steroplet 15, medens volumenforagelsen sker ved en efterfalgende opadgâende be-vægelse af stemplet 15 under pàvirkning af kraften fra tilbagefa-The operation of the device shown in FIG. 3-8 are in principle the same as for the farthest embodiment, however, the volume decrease 30 of the pump chamber 16 is now effected by depressing the steroplet 15, while the volume displacement is effected by a subsequent upward movement of the plunger 15 under the influence of the return force.
Claims (12)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK90580A DK157122C (en) | 1980-03-03 | 1980-03-03 | DOSING DEVICE FOR PASTOESE PRODUCTS |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK90580 | 1980-03-03 | ||
| DK90580A DK157122C (en) | 1980-03-03 | 1980-03-03 | DOSING DEVICE FOR PASTOESE PRODUCTS |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DK90580A DK90580A (en) | 1981-09-04 |
| DK157122B true DK157122B (en) | 1989-11-13 |
| DK157122C DK157122C (en) | 1990-04-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK90580A DK157122C (en) | 1980-03-03 | 1980-03-03 | DOSING DEVICE FOR PASTOESE PRODUCTS |
Country Status (1)
| Country | Link |
|---|---|
| DK (1) | DK157122C (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR332186A (en) * | 1903-02-09 | 1903-10-17 | Claude Riant | Refillable bottle system |
| FR581565A (en) * | 1923-05-14 | 1924-12-02 | Piston pump for emptying liquid containers | |
| US2128567A (en) * | 1937-04-01 | 1938-08-30 | Captive Closures Inc | Dispensing package for liquids |
| FR1177620A (en) * | 1957-06-28 | 1959-04-28 | Waterproof pump adaptable to a bottle | |
| US3029742A (en) * | 1959-04-02 | 1962-04-17 | Continental Can Co | Dispensing pump for fluids |
| FR1415269A (en) * | 1963-11-30 | 1965-10-22 | Small plastic piston pump for emptying a container fitted with this pump |
-
1980
- 1980-03-03 DK DK90580A patent/DK157122C/en not_active IP Right Cessation
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR332186A (en) * | 1903-02-09 | 1903-10-17 | Claude Riant | Refillable bottle system |
| FR581565A (en) * | 1923-05-14 | 1924-12-02 | Piston pump for emptying liquid containers | |
| US2128567A (en) * | 1937-04-01 | 1938-08-30 | Captive Closures Inc | Dispensing package for liquids |
| FR1177620A (en) * | 1957-06-28 | 1959-04-28 | Waterproof pump adaptable to a bottle | |
| US3029742A (en) * | 1959-04-02 | 1962-04-17 | Continental Can Co | Dispensing pump for fluids |
| FR1415269A (en) * | 1963-11-30 | 1965-10-22 | Small plastic piston pump for emptying a container fitted with this pump |
Also Published As
| Publication number | Publication date |
|---|---|
| DK90580A (en) | 1981-09-04 |
| DK157122C (en) | 1990-04-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PBP | Patent lapsed |