US3715060A - Dispensing apparatus - Google Patents

Dispensing apparatus Download PDF

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US3715060A
US3715060A US00059526A US3715060DA US3715060A US 3715060 A US3715060 A US 3715060A US 00059526 A US00059526 A US 00059526A US 3715060D A US3715060D A US 3715060DA US 3715060 A US3715060 A US 3715060A
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container
valve
pressure bulb
pump housing
neck portion
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US00059526A
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G Benson
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PERPEDOS AB
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PERPEDOS AB
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01Single-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
    • B05B11/10Pump 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
    • B05B11/1042Components or details
    • B05B11/1066Pump inlet valves
    • B05B11/1067Pump inlet valves actuated by pressure
    • B05B11/1069Pump inlet valves actuated by pressure the valve being made of a resiliently deformable material or being urged in a closed position by a spring
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47GHOUSEHOLD OR TABLE EQUIPMENT
    • A47G19/00Table service
    • A47G19/12Vessels or pots for table use
    • A47G19/18Containers for delivering jam, mustard, or the like
    • A47G19/183Containers for delivering jam, mustard, or the like by applying external pressure, i.e. by pumping or squeezing
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47KSANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K5/00Holders or dispensers for soap, toothpaste, or the like
    • A47K5/06Dispensers for soap
    • A47K5/12Dispensers for soap for liquid or pasty soap
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/0008Introducing ophthalmic products into the ocular cavity or retaining products therein
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61HPHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H35/00Baths for specific parts of the body
    • A61H35/02Baths for specific parts of the body for the eyes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M3/00Medical syringes, e.g. enemata; Irrigators
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M31/00Devices for introducing or retaining media, e.g. remedies, in cavities of the body
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M35/00Devices for applying media, e.g. remedies, on the human body
    • A61M35/003Portable hand-held applicators having means for dispensing or spreading integral media
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005Components or details
    • B05B11/0062Outlet valves actuated by the pressure of the fluid to be sprayed
    • B05B11/007Outlet valves actuated by the pressure of the fluid to be sprayed being opened by deformation of a sealing element made of resiliently deformable material, e.g. flaps, skirts, duck-bill valves
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01Single-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
    • B05B11/10Pump 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
    • B05B11/1028Pumps having a pumping chamber with a deformable wall
    • B05B11/1032Pumps having a pumping chamber with a deformable wall actuated without substantial movement of the nozzle in the direction of the pressure stroke
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01Single-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
    • B05B11/10Pump 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
    • B05B11/1042Components or details
    • B05B11/1064Pump inlet and outlet valve elements integrally formed of a deformable material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01Single-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
    • B05B11/10Pump 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
    • B05B11/1042Components or details
    • B05B11/1066Pump inlet valves
    • B05B11/1067Pump inlet valves actuated by pressure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00Machines, pumps, or pumping installations having flexible working members
    • F04B43/0009Special features
    • F04B43/0054Special features particularities of the flexible members
    • F04B43/0063Special features particularities of the flexible members bell-shaped flexible members
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10Valves; Arrangement of valves
    • F04B53/109Valves; Arrangement of valves inlet and outlet valve forming one unit
    • F04B53/1092Valves; Arrangement of valves inlet and outlet valve forming one unit and one single element forming both the inlet and outlet closure member
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F11/00Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
    • G01F11/02Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement
    • G01F11/08Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement of the diaphragm or bellows type

Definitions

  • a dispensing apparatus comprising a container and a [30] Forelgn Apphcauon Pmmty Data pump housing carrying a pressure bulb which, when July 28, 1969 Sweden 10565/69 compressed, effws the discharge of a metered quantity of the product to be dispensed. through the positive [52] U C] 222/207 222/212 222/215 pressure arising in the pressure bulb at this compres- 222/383 sion and whereby two valves, arranged in the pump 51 I t Cl 865d 37 00 housing are displaced.
  • the pump housing is arranged in a narrow portion or neck of the container which [58] Field of Search ..222/383385, 95, neck has a lli fo ming the pressure bulb.
  • the 222/207, 209, 319, 321,;378, 372, 212,215 container with its neck and pressure bulb are formed in one piece from non-rigid plastic or rubber materi- [56] References Cited als.
  • the present invention concerns an improved dispensing apparatus for discharging liquid or creamy products this apparatus being of the kind comprising a container and a pump housing arranged at the discharge end, the said pump housing having an internal through passage in which are disposed two valves delimiting between them an intermediate valve chamber being in constant communication with the interior of a resilient pressure ball which is provided on the pump housing and adapted, when compressed, i.e., when a positive pressure is generated therein, to close the valve positioned adjacent the discharge end of the container and open the valve positioned adjacent the discharge end of the through passage, and the reverse at the occurrence of a negative pressure in the pressure bulb.
  • the dispensing apparatus in accordance with the invention is characterized in that at its discharge end, the container is formed with a neck portion in which the pump housing is arranged that the pressure bulb is formed through a swelling of the neck portion and that the container with its neck portion and pressure bulb is manufactured in one piece from non-rigid plastic of rubber materials.
  • a disposable dispensing apparatus Owing to the low manufacturing costs of producing an apparatus of this kind a disposable dispensing apparatus. is provided which is extremely hygienic and may be used to dispense products of various kinds. For domestic uses may be mentioned products such as mustard, liquid soaps, hair schampoos and the like. In the treatment of illnesses, such as eye diseases, the apparatus in accordance with the invention is highly suitable for feeding out liquids for eye baths. In this instance, the discharge opening ispreferably shaped as bowl adapted to be pressed against the eye ball. Since the apparatus with its container may be delivered completely sterilized and sealed, it is very useful also for other medical purposes. Because of certain predetermined quantity is dispensed at each compression of the pressure bulb it is also possible to provide for metering of the container contents, such as for instance in dosing of medicines.
  • FIG. 1 is a lateral view of the apparatus in accordance with the invention
  • FIG. 2 is a longitudinal section, shown in a larger scale, of the lower portion of the apparatus,
  • FIG. 3 is a section through the apparatus along line III-III of FIG. 2, and
  • FIG. 4 is an exploded view of the lower portion of the apparatus.
  • the apparatus consists of a container 1 having a neck portion 2 formed at the discharge end.
  • the neck portion is in turn formed with a pressure bulb 3.
  • a pump housing 4 In the neck portion 2 is formed a pump housing 4 such that the discharge end 5 thereof extends beyond the neck 2.
  • FIG. 1 also shows that the container 1 is closed in air-tight manner.
  • the longitudinal section in accordance with FIG. 2 clearly illustrates the manner in which the pump housing 4 is mounted in the neck portion 2 of the container 1.
  • the neck 2 is provided with a circumferentially extending peripheral groove 6 in which engages a flange or head 7 arranged along the circumference of the pump housing 4.
  • acommunication passage 8 (to be described in detail later) in the pumphousing 4 be maintained in correct position andbrought to communicate with the interior of the pressure bulb 3
  • a notch 9' formed at the lower edge 9 of the neck 2 is provided in whichnotch engagesa lip 10 on the pump housing 4.
  • the pump housing 4 is provided with a through passage 11 in which are disposed two valves 12 and 13. They define: between them an intermediate valve chamber 14 which is in constant communication with the interior of the pressure bulb 3 through the communication channel 8.
  • the valves 12 and 13 are formed from a tubular body 15, 16 (see also FIG. 4) which is provided with a funnel-shaped rim 17, 18 of a resilient material and so directed that in their position of rest the valves l2, 13 close off valve chamber 14 from the rest of the through passage 11.
  • the radial guidanceof the valves 12, 13 is obtained by means of a guide shaft 19 which is positioned in the through passage 11 and extends through the tubular bodies 15, 16 of the valves.
  • the guide shaft is positioned in the through passage 11 and extends through the tubular bodies 15, 16 of the valves.
  • the guide shaft 19 is provided at its lower end with a tripod 20 resting against a shoulder 21 in the through passage 11.
  • the shoulder is formed through the stepwise tapering of the through passage 11 towards its discharge end 33.
  • the upper end of the guide shaft 19 abuts against a stop plate 22 which is inserted into the upper end of the pump housing 4 and provided with a diametrically positioned stop pin 23 (see FIG. 3) against which the guide shaft 19 abuts.
  • a supporting sleeve 24 is inserted between the stop plate 22 and the upper valve 12 whereby a support is provided protecting the valve rim 17 when an abnormal pressure is exerted.
  • the pressure bulb 3 is provided with a reinforcing bead 25 facilitating the return movement of the pressure bulb 3 after compression of the latter whereby is ensured the negative pressure necessary for the functioning of the apparatus (as will be described in the following).
  • FIGS. 2, 3 and 4 also illustrate one embodiment of an attachment means for fastening the apparatus on a wall or the like.
  • a bracket 26 is screwed onto the wall 26, the said bracket being designed to receive the neck portion 2 of the container 1 at that side thereof facing away from the wall.
  • the apparatus is kept in position by means of a clamping plate 28 having a U-shaped cross sectionq'the limbs 29 of said clamping plate embracing the bracket 27, each limb 29 having a pin 30 engaging in a corresponding notch 31 formed in the side of the bracket 27.
  • the clamping plate 28 is provided with an opening 32 for the pressure bulb 3.
  • the communication channel 8 and the valve chamber 14 are always filled with the product to be discharged, the product being, however, continuously advanced further through the through passage 11. No amount of the product thus remains in any area longer than the period between each use of the apparatus.
  • suitable dimensioning of the diameter of the discharge end 33 of the through passage 11 in relation to the viscosity of the product to be discharged it is possible, because of the capillary effect, to avoid dripping.
  • valves 12, 13 may be of a different type than the one shown. They need only fulfil the demand of opening at the present of a positive pressure in the direction away from the container 1 and of closing when a positive pressure is exerted from the discharge end 5 in the direction towards the container 1.
  • the pressure bulb 3 may, for instance, be in the form of torus-shaped bellows extending around the neck portion 2. It is further possible to make the device lockable which is an advantage in cases when it is mounted in public washrooms and the like.
  • the pins 30 are then replaced by a through-screw the head of which is so shaped that the screw may be removed only by means of a special wrench.
  • the discharge end 33 of the through passage 11 may be made closed and being opened, when used, for instance through cutting, and the like.
  • a dispensing apparatus for discharging a fluid product comprising a container for said fluid product, said container having an elongated neck portion formed integrally therewith, said neck portion having a generally cylindrical configuration with an enlargement protruding outwardly therefrom to define a pressure bulb, said container, neck portion and pressure bulb being made in one piece from a flexible material, a pump housing disposed in said elongated neck portion, said pump housing having an internal central passage having one longitudinal end in communication with said container and the other longitudinal end defining a discharge end, a first and second valve means disposed in spaced relationship to one another in said central passage to define therebetween an intermediate valve chamber, said first valve being located between said container and said intermediate valve chamber, said second valve being located between said intermediate valve chamber and said discharge end, said pump housing having an opening providing communication between said intermediate valve chamber and the interior of said pressure bulb, said pressure bulb being compressible to close said first valve and open said second valve as fluid is forced out of the interior of the pressure bulb, through said pump housing opening and through said pump central passage to
  • a dispensing apparatus according to claim 1 wherein said container, neck portion and pressure bulb are made of non-rigid plastic.
  • a dispensing apparatus according to claim 1 wherein said container, neck portion and pressure bulb are made of rubber.
  • a dispensing apparatus according to claim 2 wherein said non-rigid plastic is polyvinyl chloride. 5

Abstract

A dispensing apparatus comprising a container and a pump housing carrying a pressure bulb which, when compressed, effects the discharge of a metered quantity of the product to be dispensed through the positive pressure arising in the pressure bulb at this compression and whereby two valves, arranged in the pump housing are displaced. The pump housing is arranged in a narrow portion or neck of the container which neck has a swelling forming the pressure bulb. The container with its neck and pressure bulb are formed in one piece from non-rigid plastic or rubber materials.

Description

United States Patent Benson 1 Feb. 6, 1973 154] DISPENSING APPARATUS 3,486,663 12/1969 Humphrey ..222 207 3,162,333 12 1964 D 'd ..222 207 [75] Inventor: Gustav Eric Valdemar Benson, Mal- I aw son I S ed m0 w en Primary Examiner-Robert B. Reeves Asslgneel Perpedos MalmO, Sweden Assistant ExaminerJames M. Slattery [22] Filed: July 30, 1970 Attorney-Robert E. Burns and Emmanuel J. Lobato [21] Appl. No.1 59,526 1 ABSTRACT,
A dispensing apparatus comprising a container and a [30] Forelgn Apphcauon Pmmty Data pump housing carrying a pressure bulb which, when July 28, 1969 Sweden 10565/69 compressed, effws the discharge of a metered quantity of the product to be dispensed. through the positive [52] U C] 222/207 222/212 222/215 pressure arising in the pressure bulb at this compres- 222/383 sion and whereby two valves, arranged in the pump 51 I t Cl 865d 37 00 housing are displaced. The pump housing is arranged in a narrow portion or neck of the container which [58] Field of Search ..222/383385, 95, neck has a lli fo ming the pressure bulb. The 222/207, 209, 319, 321,;378, 372, 212,215 container with its neck and pressure bulb are formed in one piece from non-rigid plastic or rubber materi- [56] References Cited als.
UNITED STATES PATENTS 4 Claims, 4 Drawing Figures 2,613,110 10/1952 Spingarn ..222/207 X PATENIEDFEB ems 3.715.060
sum 20F a 6 EA! BENSON INVENTOR PATENIEDFEB 61975 sum 3 or 3 Q12. v. aawsow INVEN ron By J; K: 4
DISPENSING APPARATUS BACKGROUND OF THE INVENTION The present invention concerns an improved dispensing apparatus for discharging liquid or creamy products this apparatus being of the kind comprising a container and a pump housing arranged at the discharge end, the said pump housing having an internal through passage in which are disposed two valves delimiting between them an intermediate valve chamber being in constant communication with the interior of a resilient pressure ball which is provided on the pump housing and adapted, when compressed, i.e., when a positive pressure is generated therein, to close the valve positioned adjacent the discharge end of the container and open the valve positioned adjacent the discharge end of the through passage, and the reverse at the occurrence of a negative pressure in the pressure bulb.
Such dispensing apparatuses are not very hygienic since they are difficult to clean thoroughly whereby in addition the dispensing capability of the apparatus gradually deteriorates. Because apparatuses of this kind are generally intendedto be attached to the end of conventional tubes, flasks, bottles and the like sealing problems always arise. For instance, the product to be dispensed may leak out or outside air be sucked in, resulting in malfunctioning of the apparatus. If air is allowed to enter at a pointahead of the discharge opening of the apparatus, oxidizing of the product will result, inevitably accompanied by blocking or plug-up which might makeimpossible further discharge of the product. For the above reasons previously known apparatuses of this kind cannot possibly be said to fulfil the demands of sterility required in medical use.
SUMMARY OF THE INVENTION To eliminate among others the drawbacks referred to above the dispensing apparatus in accordance with the invention is characterized in that at its discharge end, the container is formed with a neck portion in which the pump housing is arranged that the pressure bulb is formed through a swelling of the neck portion and that the container with its neck portion and pressure bulb is manufactured in one piece from non-rigid plastic of rubber materials.
Owing to the low manufacturing costs of producing an apparatus of this kind a disposable dispensing apparatus. is provided which is extremely hygienic and may be used to dispense products of various kinds. For domestic uses may be mentioned products such as mustard, liquid soaps, hair schampoos and the like. In the treatment of illnesses, such as eye diseases, the apparatus in accordance with the invention is highly suitable for feeding out liquids for eye baths. In this instance, the discharge opening ispreferably shaped as bowl adapted to be pressed against the eye ball. Since the apparatus with its container may be delivered completely sterilized and sealed, it is very useful also for other medical purposes. Because of certain predetermined quantity is dispensed at each compression of the pressure bulb it is also possible to provide for metering of the container contents, such as for instance in dosing of medicines.
BRIEF DESCRIPTION OF THE DRAWINGS The invention will be described in detail in the following with reference to the accompanying drawings, in which:
FIG. 1 is a lateral view of the apparatus in accordance with the invention,
FIG. 2 is a longitudinal section, shown in a larger scale, of the lower portion of the apparatus,
FIG. 3 is a section through the apparatus along line III-III of FIG. 2, and
FIG. 4 is an exploded view of the lower portion of the apparatus.
DETAILEDDESCRIPTION OF A PREFERRED EMBODIMENT As shown in FIG. 1 the apparatus consists of a container 1 having a neck portion 2 formed at the discharge end. The neck portion is in turn formed with a pressure bulb 3. In the neck portion 2 is formed a pump housing 4 such that the discharge end 5 thereof extends beyond the neck 2. FIG. 1 also shows that the container 1 is closed in air-tight manner. By manufacturing the container from rubber or non-rigid plastic materials, such as polyvinylchloride, it is easy to compress the container as the product contained therein is being discharged.
The longitudinal section in accordance with FIG. 2 clearly illustrates the manner in which the pump housing 4 is mounted in the neck portion 2 of the container 1. At its lower end, the neck 2 is provided with a circumferentially extending peripheral groove 6 in which engages a flange or head 7 arranged along the circumference of the pump housing 4. In order'that acommunication passage 8 (to be described in detail later) in the pumphousing 4 be maintained in correct position andbrought to communicate with the interior of the pressure bulb 3, a notch 9' formed at the lower edge 9 of the neck 2 is provided in whichnotch engagesa lip 10 on the pump housing 4. The pump housing 4 is provided with a through passage 11 in which are disposed two valves 12 and 13. They define: between them an intermediate valve chamber 14 which is in constant communication with the interior of the pressure bulb 3 through the communication channel 8.
The valves 12 and 13 are formed from a tubular body 15, 16 (see also FIG. 4) which is provided with a funnel- shaped rim 17, 18 of a resilient material and so directed that in their position of rest the valves l2, 13 close off valve chamber 14 from the rest of the through passage 11. The radial guidanceof the valves 12, 13 is obtained by means of a guide shaft 19 which is positioned in the through passage 11 and extends through the tubular bodies 15, 16 of the valves. The guide shaft.
19 is provided at its lower end with a tripod 20 resting against a shoulder 21 in the through passage 11. The shoulder is formed through the stepwise tapering of the through passage 11 towards its discharge end 33. The upper end of the guide shaft 19 abuts against a stop plate 22 which is inserted into the upper end of the pump housing 4 and provided with a diametrically positioned stop pin 23 (see FIG. 3) against which the guide shaft 19 abuts. A supporting sleeve 24 is inserted between the stop plate 22 and the upper valve 12 whereby a support is provided protecting the valve rim 17 when an abnormal pressure is exerted. It also appears from FlGS. 2 and 3 that the pressure bulb 3 is provided with a reinforcing bead 25 facilitating the return movement of the pressure bulb 3 after compression of the latter whereby is ensured the negative pressure necessary for the functioning of the apparatus (as will be described in the following).
FIGS. 2, 3 and 4 also illustrate one embodiment of an attachment means for fastening the apparatus on a wall or the like. A bracket 26 is screwed onto the wall 26, the said bracket being designed to receive the neck portion 2 of the container 1 at that side thereof facing away from the wall. The apparatus is kept in position by means of a clamping plate 28 having a U-shaped cross sectionq'the limbs 29 of said clamping plate embracing the bracket 27, each limb 29 having a pin 30 engaging in a corresponding notch 31 formed in the side of the bracket 27. The clamping plate 28 is provided with an opening 32 for the pressure bulb 3.
in summary, the following takes place in the operation of the apparatus in accordance with the invention, it being assumed that the pressure bulb 3 is not compressed and the interior of the pump housing 4 filled with the product to be discharged. When the pressure bulb 3 is compressed, for instance when squeezed by the thumb of one hand, a positive pressure is generated in the valve chamber 14 whereby the valve rim 17 of the upper valve 12 is being pressed sealingly against the wall of the through passage 11, i.e., the valve 12 closes. At the same time the rim 18 of the lower valve 13 is displaced by the positive pressure of the air contained in the pressure bulb 3. The valve 13 thus also opens and an amount of the product corresponding in volume approximately to the volume of the pressure bulb 3, is being discharged out through the discharge end 33 of the through passage 11. This is so, provided the pressure bulb 3 is completely compressed. If a smaller amount of the product is wanted, naturally the bulb 3 is compressed to a lesser extent. When the compression force on the pressure bulb 3 is then relieved, the bulb tends to resume its original semi-spherical shape, and in doing so it is considerably helped by the reinforcing bead 25. A negative pressure is then created in the pressure bulb 3 and the valve chamber 14, such that the rim 17 of the valve 12 is displaced through the pressure exerted from the mass of the product contained in the container 1. The upper valve 12 thus opens and the lower valve 13 closes under the influence of the negative pressure, the valve chamber 14 filling up with the discharge product. The apparatus is thus again ready to discharge the product upon compression of the pressure bulb 3. It should be noted that the communication channel 8 and the valve chamber 14 are always filled with the product to be discharged, the product being, however, continuously advanced further through the through passage 11. No amount of the product thus remains in any area longer than the period between each use of the apparatus. By suitable dimensioning of the diameter of the discharge end 33 of the through passage 11 in relation to the viscosity of the product to be discharged it is possible, because of the capillary effect, to avoid dripping. When manufacturing the container 1 with its neck portion 2 and pressure bulb 3 as one integral element it is preferable to start from a hose blank of non-rigid plastics which is blown in a mould,
whereupon the upper end of the container 1 is closed by heat sealing. The complete pump housing 4 is thereafter pushed into the neck portion 2 and heat sealing, glueing and the like carried out between the lower edge 9 of the neck portion 2 and the pump housing 4. In many cases it is, however, possible to manufacture the pieces with such excellent fit that the joint is tight also if the above-mentioned measures are not effected.
The invention is by no means limited to the embodiment as shown and described above but several modifications are possible within the scope of the appended claims. For instance the valves 12, 13 may be of a different type than the one shown. They need only fulfil the demand of opening at the present of a positive pressure in the direction away from the container 1 and of closing when a positive pressure is exerted from the discharge end 5 in the direction towards the container 1. The pressure bulb 3 may, for instance, be in the form of torus-shaped bellows extending around the neck portion 2. It is further possible to make the device lockable which is an advantage in cases when it is mounted in public washrooms and the like. The pins 30 are then replaced by a through-screw the head of which is so shaped that the screw may be removed only by means of a special wrench. The discharge end 33 of the through passage 11 may be made closed and being opened, when used, for instance through cutting, and the like.
What I claim is:
l. A dispensing apparatus for discharging a fluid product comprising a container for said fluid product, said container having an elongated neck portion formed integrally therewith, said neck portion having a generally cylindrical configuration with an enlargement protruding outwardly therefrom to define a pressure bulb, said container, neck portion and pressure bulb being made in one piece from a flexible material, a pump housing disposed in said elongated neck portion, said pump housing having an internal central passage having one longitudinal end in communication with said container and the other longitudinal end defining a discharge end, a first and second valve means disposed in spaced relationship to one another in said central passage to define therebetween an intermediate valve chamber, said first valve being located between said container and said intermediate valve chamber, said second valve being located between said intermediate valve chamber and said discharge end, said pump housing having an opening providing communication between said intermediate valve chamber and the interior of said pressure bulb, said pressure bulb being compressible to close said first valve and open said second valve as fluid is forced out of the interior of the pressure bulb, through said pump housing opening and through said pump central passage to said discharge end, said pressure bulb being returnable to its uncompressed state to open said first valve and close said second valve as fluid is drawn from said container past said first valve, into said intermediate valve chamber, through said pump housing opening and into the interior of said pressure bulb.
2. A dispensing apparatus according to claim 1 wherein said container, neck portion and pressure bulb are made of non-rigid plastic.
3. A dispensing apparatus according to claim 1 wherein said container, neck portion and pressure bulb are made of rubber.
4. A dispensing apparatus according to claim 2 wherein said non-rigid plastic is polyvinyl chloride. 5

Claims (4)

1. A dispensing apparatus for discharging a fluid product comprising a container for said fluid product, said container having an elongated neck portion formed integrally therewith, said neck portion having a generally cylindrical configuration with an enlargement protruding outwardly therefrom to define a pressure bulb, said container, neck portion and pressure bulb being made in one piece from a flexible material, a pump housing disposed in said elongated neck portion, said pump housing having an internal central passage having one longitudinal end in communication with said container and the other longitudinal end defining a discharge end, a first and second valve means disposed in spaced relationship to one another in said central passage to define therebetween an intermediate valve chamber, said first valve being located between said container and said intermediate valve chamber, said second valve being located between said intermediate valve chamber and said discharge end, said pump housing having an opening providing communication between said intermediate valve chamber and the interior of said pressure bulb, said pressure bulb being compressible to close said first valve and open said second valve as fluid is forced out of the interior of the pressure bulb, through said pump housing opening and through said pump central passage to said discharge end, said pressure bulb being returnable to its uncompressed state to open said first valve and close said second valve as fluid is drawn from said container past said first valve, into said intermediate valve chamber, through said pump housing opening and into the interior of said pressure bulb.
1. A dispensing apparatus for discharging a fluid product comprising a container for said fluid product, said container having an elongated neck portion formed integrally therewith, said neck portion having a generally cylindrical configuration with an enlargement protruding outwardly therefrom to define a pressure bulb, said container, neck portion and pressure bulb being made in one piece from a flexible material, a pump housing disposed in said elongated neck portion, said pump housing having an internal central passage having one longitudinal end in communication with said container and the other longitudinal end defining a discharge end, a first and second valve means disposed in spaced relationship to one another in said central passage to define therebetween an intermediate valve chamber, said first valve being located between said container and said intermediate valve chamber, said second valve being located between said intermediate valve chamber and said discharge end, said pump housing having an opening providing communication between said intermediate valve chamber and the interior of said pressure bulb, said pressure bulb being compressible to close said first valve and open said second valve as fluid is forced out of the interior of the pressure bulb, through said pump housing opening and through said pump central passage to said discharge end, said pressure bulb being returnable to its uncompressed state to open said first valve and close said second valve as fluid is drawn from said container past said first valve, into said intermediate valve chamber, through said pump housing opening and into the interior of said pressure bulb.
2. A dispensing apparatus according to claim 1 wherein said container, neck portion and pressure bulb are made of non-rigid plastic.
3. A dispensing apparatus according to claim 1 wherein said container, neck portion and pressure bulb are made of rubber.
US00059526A 1969-07-28 1970-07-30 Dispensing apparatus Expired - Lifetime US3715060A (en)

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BE (1) BE753938A (en)
CA (1) CA925836A (en)
CH (1) CH508529A (en)
DE (1) DE2034113A1 (en)
ES (1) ES382457A1 (en)
FR (1) FR2053198B1 (en)
GB (1) GB1270057A (en)
LU (1) LU61272A1 (en)
NL (1) NL7010072A (en)
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SE (1) SE333624B (en)

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US4210225A (en) * 1977-02-16 1980-07-01 Uniwave, Inc. Liquid oil feeders
US4330071A (en) * 1979-10-15 1982-05-18 Ab Tranas Rostfria Dispensing device for discharging a liquid or pasty product from a container, containing such a product
US4651904A (en) * 1983-12-02 1987-03-24 Bramlage Gesellschaft Mit Beschrankter Haftung Dispenser for pasty compositions, particularly toothpaste dispenser
US4669664A (en) * 1984-04-09 1987-06-02 Waynesboro Textiles, Inc. Hand manipulatable sprayer
US5261755A (en) * 1990-05-25 1993-11-16 The Gillette Company Fluid dispenser
US5303851A (en) * 1992-11-12 1994-04-19 Jeffrey M. Libit Spray or dispensing bottle with integral pump molded therein
US5601212A (en) * 1994-04-14 1997-02-11 Lee; Gary K. Dispensing unit for a threaded neck bottle
WO1997015335A1 (en) * 1995-10-23 1997-05-01 C.R. Bard, Inc. Self-priming pulsed lavage pump
US5638994A (en) * 1995-09-21 1997-06-17 Jeffrey M. Libit Molded bottle with trigger bulb pump
WO1999000257A1 (en) * 1997-06-27 1999-01-07 Rainer Kaufmann Device for placing a liquid on a substrate
US6592578B2 (en) * 2000-02-24 2003-07-15 Howmedica Leibinger, Inc. Device for locally heating a bioabsorbable plate
WO2003097250A1 (en) * 2002-05-15 2003-11-27 Amir Genosar Liquid dispenser
WO2005046882A1 (en) 2003-11-16 2005-05-26 Profile-Dispensing Innovation, Llc Dispensing container
US20050260090A1 (en) * 2004-05-21 2005-11-24 Roland Stark Pumps for fluid dispensers
US20060186140A1 (en) * 2005-02-24 2006-08-24 Kanfer Joseph S Fluid dispensers for personal use
US20080156829A1 (en) * 2006-12-28 2008-07-03 Jan-Sun Chen Structure for controlling soap discharging quantity of soap dispensing apparatus
US20100320226A1 (en) * 2008-02-18 2010-12-23 Sca Hygiene Products Ab Disposable pump, a dispensing system comprising a pump and a method for dispensing liquid
US20100327019A1 (en) * 2008-02-18 2010-12-30 Sca Hygiene Products Ab Disposable pump with suck-back mechanism
US20110031278A1 (en) * 2009-03-30 2011-02-10 Han De Man Eelco Pump device and methods for making the same
US20110036863A1 (en) * 2008-02-18 2011-02-17 Sca Hygiene Products Ab Disposable dispensing system comprising a collapsible container, a dispenser and a method for dispensing liquid from such dispensing system
US20110240681A1 (en) * 2009-11-30 2011-10-06 Foster Donald D Low Cost Trigger Sprayer
US20110284579A1 (en) * 2010-04-06 2011-11-24 Reseal International Limited Partnership Delivery system for dispensing metered volumes of pure or sterile flowable substances
US20120014824A1 (en) * 2009-03-30 2012-01-19 Meadwestvaco Calmar Netherlands B.V. Pump device and methods for making the same
US20120097709A1 (en) * 2009-03-30 2012-04-26 Meadwestvaco Calmar Netherlands Bv Pouch and pump dispensing system
JP2012101212A (en) * 2010-11-08 2012-05-31 Darin Co Ltd Low cost trigger sprayer
US20130277594A1 (en) * 2011-01-07 2013-10-24 Mitsubishi Electric Corporation Valve Assembly for a Dispenser for Fluids
US20140048562A1 (en) * 2012-08-17 2014-02-20 Meadwestvaco Corporation Pump device and flow control system
WO2014045277A1 (en) * 2012-09-19 2014-03-27 Innovative Pharmaceuticalconcepts (Ipc) Inc. Medical applicator
US20140147318A1 (en) * 2012-11-29 2014-05-29 Meadwestvaco Calmar Netherlands Bv Improved bellows for a pump device
EP1630417B1 (en) * 2004-08-23 2015-06-24 Uwe Rauhut Dispenser for fluids, liquids and viscous material
US20150375244A1 (en) * 2013-02-07 2015-12-31 Gb Developpement Fluid dispensing device and method for producing such a device
EP3002065A1 (en) * 2014-10-03 2016-04-06 OP-Hygiene IP GmbH Displacement pump
CN106457285A (en) * 2014-05-30 2017-02-22 株式会社吉野工业所 Trigger-type liquid sprayer
US10113541B2 (en) 2012-11-29 2018-10-30 Silgan Dispensing Systems Netherlands B.V. Valves and pumps using said valves
US20220266052A1 (en) * 2016-01-18 2022-08-25 Nikolai Tankovich Attachable tip for electromagnetic hand piece
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US4957218A (en) * 1986-07-28 1990-09-18 Ballard Medical Products Foamer and method
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Cited By (58)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4210225A (en) * 1977-02-16 1980-07-01 Uniwave, Inc. Liquid oil feeders
US4330071A (en) * 1979-10-15 1982-05-18 Ab Tranas Rostfria Dispensing device for discharging a liquid or pasty product from a container, containing such a product
US4651904A (en) * 1983-12-02 1987-03-24 Bramlage Gesellschaft Mit Beschrankter Haftung Dispenser for pasty compositions, particularly toothpaste dispenser
US4669664A (en) * 1984-04-09 1987-06-02 Waynesboro Textiles, Inc. Hand manipulatable sprayer
US5261755A (en) * 1990-05-25 1993-11-16 The Gillette Company Fluid dispenser
US5303851A (en) * 1992-11-12 1994-04-19 Jeffrey M. Libit Spray or dispensing bottle with integral pump molded therein
US5601212A (en) * 1994-04-14 1997-02-11 Lee; Gary K. Dispensing unit for a threaded neck bottle
US5638994A (en) * 1995-09-21 1997-06-17 Jeffrey M. Libit Molded bottle with trigger bulb pump
WO1997015335A1 (en) * 1995-10-23 1997-05-01 C.R. Bard, Inc. Self-priming pulsed lavage pump
US5792108A (en) * 1995-10-23 1998-08-11 C. R. Bard, Inc. Self-priming pulsed lavage pump
WO1999000257A1 (en) * 1997-06-27 1999-01-07 Rainer Kaufmann Device for placing a liquid on a substrate
US6592578B2 (en) * 2000-02-24 2003-07-15 Howmedica Leibinger, Inc. Device for locally heating a bioabsorbable plate
US20100096413A1 (en) * 2002-05-15 2010-04-22 Profile Dispensing Innovation, Llc Liquid Dispenser
WO2003097250A1 (en) * 2002-05-15 2003-11-27 Amir Genosar Liquid dispenser
US20050230425A1 (en) * 2002-05-15 2005-10-20 Amir Genosar Liquid dispenser
WO2005046882A1 (en) 2003-11-16 2005-05-26 Profile-Dispensing Innovation, Llc Dispensing container
US20050260090A1 (en) * 2004-05-21 2005-11-24 Roland Stark Pumps for fluid dispensers
EP1630417B1 (en) * 2004-08-23 2015-06-24 Uwe Rauhut Dispenser for fluids, liquids and viscous material
US20060186140A1 (en) * 2005-02-24 2006-08-24 Kanfer Joseph S Fluid dispensers for personal use
US20080156829A1 (en) * 2006-12-28 2008-07-03 Jan-Sun Chen Structure for controlling soap discharging quantity of soap dispensing apparatus
US8695856B2 (en) 2008-02-18 2014-04-15 Sca Hygiene Products Ab Disposable pump, a dispensing system comprising a pump and a method for dispensing liquid
US20100327019A1 (en) * 2008-02-18 2010-12-30 Sca Hygiene Products Ab Disposable pump with suck-back mechanism
US20110036863A1 (en) * 2008-02-18 2011-02-17 Sca Hygiene Products Ab Disposable dispensing system comprising a collapsible container, a dispenser and a method for dispensing liquid from such dispensing system
US8708200B2 (en) 2008-02-18 2014-04-29 Sca Hygiene Products Ab Disposable pump with suck-back mechanism
US8701942B2 (en) * 2008-02-18 2014-04-22 Sca Hygiene Products Ab Disposable dispensing system comprising a collapsible container, a dispenser and a method for dispensing liquid from such dispensing system
US20100320226A1 (en) * 2008-02-18 2010-12-23 Sca Hygiene Products Ab Disposable pump, a dispensing system comprising a pump and a method for dispensing liquid
US20120014824A1 (en) * 2009-03-30 2012-01-19 Meadwestvaco Calmar Netherlands B.V. Pump device and methods for making the same
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US10159997B2 (en) * 2009-11-30 2018-12-25 Silgan Dispensing Systems Corporation Low cost trigger sprayer
US20110240681A1 (en) * 2009-11-30 2011-10-06 Foster Donald D Low Cost Trigger Sprayer
US20110284579A1 (en) * 2010-04-06 2011-11-24 Reseal International Limited Partnership Delivery system for dispensing metered volumes of pure or sterile flowable substances
US9241828B2 (en) * 2010-04-06 2016-01-26 Reseal International Limited Partnership Delivery system for dispensing metered volumes of pure or sterile flowable substances
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US20130277594A1 (en) * 2011-01-07 2013-10-24 Mitsubishi Electric Corporation Valve Assembly for a Dispenser for Fluids
US9494240B2 (en) * 2011-01-07 2016-11-15 Fast & Fluid Management B.V. Valve assembly for a dispenser for fluids
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US9206797B2 (en) * 2012-11-29 2015-12-08 Meadwestvaco Calmar Netherlands Bv Bellows for a pump device
US20140147318A1 (en) * 2012-11-29 2014-05-29 Meadwestvaco Calmar Netherlands Bv Improved bellows for a pump device
US10113541B2 (en) 2012-11-29 2018-10-30 Silgan Dispensing Systems Netherlands B.V. Valves and pumps using said valves
US10029268B2 (en) 2013-02-07 2018-07-24 Gb Developpement Fluid dispensing device and method for producing such a device
US9694375B2 (en) * 2013-02-07 2017-07-04 Gb Developpement Fluid dispensing device and method for producing such a device
US20150375244A1 (en) * 2013-02-07 2015-12-31 Gb Developpement Fluid dispensing device and method for producing such a device
EP3150287A4 (en) * 2014-05-30 2018-01-10 Yoshino Kogyosho Co., Ltd. Trigger-type liquid sprayer
US10040087B2 (en) * 2014-05-30 2018-08-07 Yoshino Kogyosho Co., Ltd. Trigger-type liquid dispenser
US20170113238A1 (en) * 2014-05-30 2017-04-27 Yoshino Kogyosho Co., Ltd. Trigger-type liquid dispenser
CN106457285A (en) * 2014-05-30 2017-02-22 株式会社吉野工业所 Trigger-type liquid sprayer
US10174754B2 (en) 2014-10-03 2019-01-08 Op-Hygiene Ip Gmbh Displacement pump
EP3002065A1 (en) * 2014-10-03 2016-04-06 OP-Hygiene IP GmbH Displacement pump
US20220266052A1 (en) * 2016-01-18 2022-08-25 Nikolai Tankovich Attachable tip for electromagnetic hand piece
US20220331823A1 (en) * 2019-09-25 2022-10-20 Kao Corporation Dispenser

Also Published As

Publication number Publication date
CA925836A (en) 1973-05-08
GB1270057A (en) 1972-04-12
CH508529A (en) 1971-06-15
SE333624B (en) 1971-03-22
NL7010072A (en) 1971-02-01
NO124047B (en) 1972-02-21
BE753938A (en) 1970-12-31
LU61272A1 (en) 1970-09-10
FR2053198A1 (en) 1971-04-16
AT303283B (en) 1972-11-27
ES382457A1 (en) 1972-11-16
FR2053198B1 (en) 1973-05-25
DE2034113A1 (en) 1971-02-11

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