Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
  • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
  • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
  • B05B11/1001—Piston pumps
  • B05B11/1015—Piston pumps actuated without substantial movement of the nozzle in the direction of the pressure stroke
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
  • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
  • B05B11/02—Membranes or pistons acting on the contents inside the container, e.g. follower pistons
  • B05B11/028—Pistons separating the content remaining in the container from the atmospheric air to compensate underpressure inside the container
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
  • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
  • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
  • B05B11/1042—Components or details
  • B05B11/1064—Pump inlet and outlet valve elements integrally formed of a deformable material
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
  • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
  • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
  • B05B11/1042—Components or details
  • B05B11/1073—Springs
  • B05B11/1074—Springs located outside pump chambers

Definitions

• Dispenser for liquids or for viscous or sprayable products
• the description relates to a dispenser for liquids, or for viscous or sprayable products, on which a storage container is interchangeably attached and which can be connected to a dosing device, with a suction or pressure piston movable back and forth in a cylinder housing and a valve between suction - and print page.
• dispensers are used in everyday use e.g. as soap dispenser, lotion or cream dispenser, gel, liquid
• the components used in drug spray containers are pump systems, each with a unit consisting of a connector, sealing housing, piston with a compression spring and with a ball. Since the balls and the compression springs are made of steel or stainless steel for functional reasons, chemical reactions can take place within a short time between the medicinal liquid and the material steel, which change the basic substance of the medicament, so that such a pumping system for medication is not permitted , Drug treatment by spraying the finest droplets into the nose has risen sharply in recent years. There are three basic requirements for such systems: reliability, security and effectiveness.
• the invention has for its object to provide a suitable for liquids of different consistency that avoids the contact of the liquid with metal parts, the entry of bacteria in the air.
• the cylinder housing receives the piston at one end with a compression spring arranged in a cavity and that at the other end a valve seat with a clamped on the circumference
• Membrane disk is provided for blocking in the storage container or opening the flow from the storage container.
• the compression spring arranged inside is the only part made of steel and does not come into contact with the liquid, so that medication intended for spraying can also be sprayed without the risk of chemical change.
• the diaphragm valve shields the entry of airborne substances Bacteria, so that the liquid is protected from contamination.
• a protective chamber system is further constructed according to further features in that the membrane disc has a connection opening which is central to the cylinder housing and that through openings are provided in the valve seat in the storage container.
• the opening and closing of the valve is further effected in that the membrane disc is clamped on an outer edge between the valve seat and the cylinder housing, wherein passage channels are provided in the cylinder housing, that the membrane disc rests against a concentric outer ring web of the cylinder housing and that the diaphragm disc lies on a ring-shaped sealing seat around the central connection opening and is dependent on the pressure.
• the sealing seat is opened and when the piston is pressed, the sealing seat is closed in the direction of the storage container and released to the metering device.
• the opening in the direction of the metering device can advantageously be designed in such a way that the membrane disk communicates with the cylinder space and an upper space above the membrane disk with a suction or ejection opening for the metering device.
• Membrane disc with its connection opening of a suction or Ejection opening of the cylinder housing is opposite.
• the connection between the valve seat and the cylinder housing is created in that the valve seat forms a sealing latching connection on the side of the storage container.
• the storage container consists of a transparent glass cylinder. Due to the material glass, the container itself has no influence on the composition of the liquid.
• an axially open glass cylinder it is then advantageous for an axially open glass cylinder to have a sealing clamping base made of flexible material.
• the amount of liquid is held together compactly without the formation of air bubbles in that a flying piston which can be adjusted by suction is provided in the storage container.
• the flying piston has a flat end face.
• the piston can be made of a rubber or plastic that slides easily on glass.
• the steel compression spring can be enclosed in that the cylinder housing has a hollow guide shaft for internal guidance of the spring-loaded suction / pressure piston.
• the separate accommodation of the compression spring is made possible in that the compression spring is arranged in a cavity of the sleeve-shaped suction / pressure piston. - 5 -
• Air to be vented from the space receiving the compression spring during the pressing can be such that axially extending ventilation channels are provided in the outer sleeve wall of the suction / pressure piston.
• valve seat merges concentrically with the latching connection into a holder for an intake manifold.
• a suction pipe can be used instead of the flying piston.
• An alternative embodiment of the dispenser results from the fact that the cylinder housing is of an angular shape, the suction or ejection opening continuing from the upper space as an angular channel.
• the angle can be either a right angle or an acute angle. This results in favorable ergonomic handling for gripping, holding and operating the dispenser.
• valve seat be hollow towards the storage container and, together with the snap-in connection, form an annular shoulder which can be moved into a correspondingly shaped annular space of the flying piston.
• an inner tube is connected via a connecting channel, which pipe runs in the same axis as the axis of the storage container.
• the inner tube which is connected to the metering device, is surrounded by a protective tube.
• the inner tube is provided with the metering device and the protective tube by means of a removable protective cap.
• a needle holder bush is fastened in the cylinder housing under the valve seat and that a hollow technique needle is fastened in the needle holder bush, the channel of which is connected to the passage openings.
• the invention is further developed in such a way that a second piston is provided in the storage container below the needle holder bushing, an embedded inner contour corresponding to the outer contour of the needle holder bushing, the latching connection and the ring shoulder of the valve seat.
• the liquid used as the mass to be filled in of the liquid or the viscous liquid or the liquid to be atomized can be filled in between the flying piston and the second piston during the manufacture and final assembly of the dispenser.
• La is a vertical section through a second embodiment of the dispenser, Lb a functional unit formed from valve seat and membrane,
• FIG. 1 is an external perspective view of the dispenser according to FIG. 1,
• FIG. 3 shows an alternative embodiment of the dispenser with a modified valve and storage container in section
• FIG. 5 is an external perspective view of the dispenser according to FIG. 4,
• Fig. 6 is a view of the dispenser on a scale of 1: 1 and
• FIG. 7 shows a section through a further alternative embodiment of the dispenser.
• the dispenser has an exchangeable storage container 7 which can be connected to a metering device 10 via a valve in the liquid path.
• a piston 1, as a suction or pressure piston, can be moved back and forth in a cylinder housing 3.
• the cylinder housing 3 receives at one end 3a the piston 1 with a compression spring 2 arranged in a cavity 1b and at its other end 3b a valve seat 5 is provided with a diaphragm disc 4 clamped on the circumference 4a for blocking or opening the flow.
• the diaphragm disk 4 has a connection opening 4b which is central to the cylinder housing 3 and the valve seat 5 has passage openings 5a in the direction of the storage container 7.
• the membrane disc 4 is clamped on an outer edge between the valve seat and the cylinder housing, wherein passages 3n are provided in the cylinder housing 3 extending transversely.
• the membrane disc 4 is also against a concentric outer ring web 3c of the cylinder housing depending on pressure.
• the membrane disc 4 rests on an annular sealing seat 5c around the central connecting opening 4b, depending on the pressure.
• the membrane disc 4 is connected to the cylinder space 3d and an upper space 3e above the membrane disc 4 with a suction or discharge opening 3f for the metering device 10.
• the diaphragm disk 4 with its connection opening 4b is opposite a suction or ejection opening 3f of the cylinder housing 3.
• the metering device 10 can also be designed as a spray nozzle. If the metering device 10 is fastened by latching in the cylinder housing 3, depending on the application, differently designed dosing devices are used.
• valve seat 5 is fastened in such a simple manner that the valve seat 5 forms a sealing latching connection 3g on the side of the storage container 7.
• the storage container 7 is made of a transparent glass cylinder 7a.
• the glass can also be colored.
• the cylinder housing 3 is formed into a cover engaging behind the cylinder edge, a pressure piece 6 from a glass ring being inserted between the cylinder edge and this cover in order to generate a tolerated voltage.
• An axially open glass cylinder 7a with a sealing clamping base 9 made of flexible material (plastic) is placed on the bottom.
• Fig. La shows an embodiment compared to the embodiment of Fig. 1 modified in that the
• Piston 1 and the spring 2 are formed as a one-piece part 21.
• this part can be manufactured by injection molding. It can consist of one or two material components.
• At least the area 21a taking over the function of the spring is preferably made of thermoplastic
• the piston region 21b can also be made of stiffer plastic.
• the one-piece design of part 21 reduces the number of required components and simplifies final assembly.
• a flying piston 8 which is adjustable by suction force of the piston 1, is slidably mounted in the storage container 7.
• the flying piston 8 has a flat end face 8b.
• the cylinder housing 3 (Fig. 1 and 3) has a hollow guide shaft for internal guidance of the sprung Saugtial Pressure piston 1 and for external guidance of the sleeve-shaped suction and pressure piston 1.
• the compression spring 2 made of steel is arranged in the cavity 1b.
• axially parallel ventilation channels ld are incorporated in the outer sleeve wall lc of the suction or pressure piston 1 .
• valve seat 5 is concentric with
• the cylinder housing 3 can have an angular shape, the suction or discharge opening 3f continuing from the upper space 3e as an angular channel 3k.
• the valve seat 5 is hollow toward the storage container 7 and, together with the latching connection 3g, forms an annular shoulder 5e which can be moved into a correspondingly shaped annular space 8a of the flying piston 8.
• Storage container 7 runs, connected.
• the inner tube 13, which is connected to the metering device 10 with a filler 11, is surrounded by a protective tube 14.
• the inner tube 13 with the metering device 10 and the protective tube 14 are provided with a removable protective cap 15.
• a standardization can be achieved in that a functional unit is formed from the membrane 4 and valve seat 5 and a cap 22, which functions as a two-way valve and can be used in a variety of dispenser pumps of different sizes.
• a functional unit is shown in FIG. 1b.
• the membrane can have an inner area 4e of lower Shore hardness (e.g. approx. 55 ° A) and an outer area 4f of greater Shore hardness (e.g. approx. 80 ° A).
• the area ratio between the effective areas and the ratio of the membrane hardness influence the switching points of the valve. These can therefore be adapted to different working points with the same valve geometry by using appropriate membranes.
• a pressure surface 1 a is adapted to the finger.
• a needle holder bushing 16 is fastened in the cylinder housing 3 and in the needle holder bushing 16 there is a hollow technique needle 17, the channel 17a of which is connected to the passage openings 5a as soon as a sealing wall of a second piston 18 is pierced.
• valve seat 5 facing the storage container 7 as a Luer lock connection.
• the valve seat 5 is preferably the female part of the Luer lock connection. This makes it possible, while maintaining hygiene and sterility conditions, to connect the storage container to the dispenser and its valve seat 5 only immediately before use.
• the needle holder bush 16 After piercing the wall of the two-piston 18, the needle holder bush 16 is due to a recessed inner contour 18a with the outer contour of the needle holder bush 16 in contact with the locking connection 3g and the ring shoulder 5e of the valve seat 5.
• the second piston 18 is by the suction stroke with the lifting height "h "(cf. FIG. 3) at an upward through the cylinder inner diameter" D ".
• the mass to be filled in the liquid or the viscous liquid or liquid to be sprayed or atomized is filled between the flying piston 8 and the second piston 18 in the course of the assembly.

Landscapes

• Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
• Compositions Of Macromolecular Compounds (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=7918553

Family Applications (1)

Country Status (5)

Cited By (1)

Families Citing this family (18)

Family Cites Families (19)

• 1999
  • 1999-08-16 DE DE19938798A patent/DE19938798A1/de not_active Withdrawn
• 2000
  • 2000-08-12 WO PCT/EP2000/007882 patent/WO2001012338A1/fr active IP Right Grant
  • 2000-08-12 AT AT00960446T patent/ATE262379T1/de not_active IP Right Cessation
  • 2000-08-12 DE DE50005806T patent/DE50005806D1/de not_active Expired - Lifetime
  • 2000-08-12 EP EP00960446A patent/EP1202816B1/fr not_active Expired - Lifetime
  • 2000-08-12 US US10/049,974 patent/US6705493B1/en not_active Expired - Fee Related

Non-Patent Citations (1)

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