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WO2021191710A1 - Appareil de distribution d'un liquide - Google Patents

Appareil de distribution d'un liquide Download PDF

Info

Publication number
WO2021191710A1
WO2021191710A1 PCT/IB2021/051759 IB2021051759W WO2021191710A1 WO 2021191710 A1 WO2021191710 A1 WO 2021191710A1 IB 2021051759 W IB2021051759 W IB 2021051759W WO 2021191710 A1 WO2021191710 A1 WO 2021191710A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
liquid
section
vent
piston
Prior art date
Application number
PCT/IB2021/051759
Other languages
English (en)
Inventor
. Akshay
Darji Bhavarth MUKESHBHAI
Sanandan Sudhir
Amit Krishn Gulati
Ajay Anand
Ankit SINGH
Original Assignee
Nagpal, Rahul
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nagpal, Rahul filed Critical Nagpal, Rahul
Publication of WO2021191710A1 publication Critical patent/WO2021191710A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/08—Apparatus to be carried on or by a person, e.g. of knapsack type
    • B05B9/0805—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material
    • B05B9/0811—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material comprising air supplying means actuated by the operator to pressurise or compress the container
    • B05B9/0816—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material comprising air supplying means actuated by the operator to pressurise or compress the container the air supplying means being a manually actuated air pump
    • B05B9/0822—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material comprising air supplying means actuated by the operator to pressurise or compress the container the air supplying means being a manually actuated air pump a discharge device being fixed to 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
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/002—Manually-actuated controlling means, e.g. push buttons, levers or triggers

Definitions

  • the present disclosure relates generally to a liquid dispenser.
  • the present disclosure relates to a portable dispenser of a stream of liquid.
  • the numbers expressing quantities or dimensions of items, and so forth, used to describe and claim certain embodiments of the invention are to be understood as being modified in some instances by the term “about.” Accordingly, in some embodiments, the numerical parameters set forth in the written description and attached claims are approximations that can vary depending upon the desired properties sought to be obtained by a particular embodiment. In some embodiments, the numerical parameters should be construed in light of the number of reported significant digits and by applying ordinary rounding techniques. Notwithstanding that the numerical ranges and parameters setting forth the broad scope of some embodiments of the invention are approximations, the numerical values set forth in the specific examples are reported as precisely as practicable. The numerical values presented in some embodiments of the invention may contain certain errors necessarily resulting from the standard deviation found in their respective testing measurements.
  • a general object of the present invention is to provide an apparatus for dispensing a stream of liquid.
  • Another object of the present invention is to provide a portable apparatus for dispensing a stream of liquid.
  • Another object of the present invention is to provide an apparatus for dispensing a stream of liquid that is independent of orientation of the apparatus.
  • Another object of the present invention is to provide an apparatus for dispensing a stream of liquid that can be re-used.
  • Another object of the present invention is to provide an apparatus for dispensing a stream of liquid that can be charged quickly.
  • the present disclosure relates generally to a liquid dispenser.
  • the present disclosure relates to a portable dispenser of a stream of liquid.
  • the present disclosure provides an apparatus for dispensing a liquid
  • the apparatus includes: a container adapted for storage of the liquid to be dispensed through a dispensing unit fluidically coupled with the container; a hollow cylinder disposed in the container; a piston comprising a piston head and a hollow tube coupled to the piston head, the piston being slidably configured in the hollow cylinder to move between a first position and a second position defined as being near a base of the container and being away from the base of the container respectively, wherein the piston head divides the hollow cylinder into a first section and a second section defined between a current position of the piston head and the first position and the second position respectively; a first one-way valve configured on a first face of the piston head, adapted to selectively allow flow of a fluid between the hollow tube and the first section of the cylinder on occurrence of a negative pressure in the first section; at least one second one-way valve configured on the container, adapted to selectively allow flow of the fluid from a second
  • the apparatus includes at least one third one-way valve configured on the hollow cylinder at each of the first section and the second section, each adapted to allow flow of compressed fluid from the corresponding first section and second section to the container to pressurise the container, wherein pressurisation of the container enables flow of the liquid into the dispensing unit.
  • the apparatus can include at least two fourth one-way valves configured in the container and adapted to, based on pressure and orientation attributes of the container, selectively allow flow of the liquid to the dispensing unit.
  • each of the at least two fourth one-way valves can include: a vent fluidically coupling the container and the dispensing unit, the vent adapted to allow flow of liquid from the container to the dispensing unit; and a dead weight adapted to move between an open position and a closed position based on the pressure and orientation attributes of the container, wherein the dead weight, in its open position allows flow of the liquid into the vent, and in its closed position, disallows the flow of the liquid into the vent.
  • the pressure attribute can be the pressure inside the container.
  • the each of the at least two fourth one-way valve is adapted to allow flow of liquid into the vent when the pressure inside the container is at least a pre-defined value.
  • the orientation attribute can be the level of the liquid in the container with respect to the vent of the fourth one-way valve.
  • the dead weight is adapted to move to the closed position when the vent is submerged in the compressed fluid.
  • each of the first one-way valve, the second one-way valve and the at least one third one-way valve can include: a cylindrical disc provided with a central vent adapted to allow flow of fluid through the central vent; and a flexible diaphragm provided on one side of the disc, covering the vent, wherein a pressure due to presence of fluid acts on an exposed side of the diaphragm.
  • the acting pressure is positive, the diaphragm is pushed into the central disc to enable closing of the vent, and when the acting pressure is negative, the diaphragm is pulled away from the central disc to enable opening of the vent.
  • the fluid can be ambient air.
  • the dispensing unit can be a cavity provided with a nozzle.
  • the nozzle can be operable by a trigger.
  • At least a part of the hollow tube can project from the apparatus, and wherein the piston is actuated by applying force on the hollow tube.
  • a seal can be provided in the piston head to fluidically isolate the first section of the hollow cylinder from the second section.
  • a seal can be provided at a point where the hollow tube exits the container to fluidically isolate the container from an outside environment.
  • the second container is open to the outside environment.
  • a third container can be detachably configured with the apparatus, the third container adapted for storage of a second fluid.
  • FIG. 1 illustrates an isometric representation of an apparatus for dispensing a stream of liquid, in accordance with an embodiment of the present disclosure.
  • FIGs. 2A and 2B illustrate cross-sectional views of the body of the apparatus for dispensing a stream of liquid along with the plunger, in accordance with an embodiment of the present disclosure.
  • FIG. 3 illustrates an exemplary cross-sectional view of the apparatus for dispensing a stream of liquid, in accordance with an embodiment of the present disclosure.
  • inventive subject matter provides many example embodiments of the inventive subject matter. Although each embodiment represents a single combination of inventive elements, the inventive subject matter is considered to include all possible combinations of the disclosed elements. Thus, if one embodiment comprises elements A, B, and C, and a second embodiment comprises elements B and D, then the inventive subject matter is also considered to include other remaining combinations of A, B, C, or D, even if not explicitly disclosed.
  • Embodiments described herein relate generally to a liquid dispenser, and in particular, to a portable dispenser of a stream of liquid.
  • the present disclosure provides an apparatus for dispensing a stream of liquid that can be portable and re-used.
  • the proposed apparatus can be easily charged, or pressurised, and can be used irrespective of the orientation of the apparatus.
  • the present disclosure provides an apparatus for dispensing a liquid
  • the apparatus includes: a container adapted for storage of the liquid to be dispensed through a dispensing unit fluidically coupled with the container; a hollow cylinder disposed in the container; a piston comprising a piston head and a hollow tube coupled to the piston head, the piston being slidably configured in the hollow cylinder to move between a first position and a second position defined as being near a base of the container and being away from the base of the container respectively, wherein the piston head divides the hollow cylinder into a first section and a second section defined between a current position of the piston head and the first position and the second position respectively; a first one-way valve configured on a first face of the piston head, adapted to selectively allow flow of a fluid between the hollow tube and the first section of the cylinder on occurrence of a negative pressure in the first section; at least one second one-way valve configured on the container, adapted to selectively allow flow of the fluid from a second
  • FIG. 1 illustrates an isometric representation of an apparatus for dispensing a stream of liquid, in accordance with an embodiment of the present disclosure.
  • the apparatus for dispensing a stream of liquid 100 (hereinafter, also referred to as “dispenser”) is provided with a body 102 that is adapted for storage of a liquid.
  • the dispenser 100 is adapted to provide a stream of the liquid from a nozzle 104 provided on the body 102.
  • the stream of liquid is made possible by pressurising a container storing the liquid within the body 102 with a gaseous fluid such as air, wherein the pressure provides the propulsion to dispense a stream of the liquid from the nozzle 104.
  • the dispenser 100 is provided with a piston 106 that is actuated to pressurise the liquid.
  • the dispenser 100 is further provided with a trigger 108, which, on engagement, allows the liquid to flow out from the nozzle 104 as a stream.
  • the liquid can be water.
  • the dispenser 100 can be provided with a detachable unit 110, which is adapted to store a liquid such as a soap solution or a sanitiser solution.
  • FIGs. 2A and 2B illustrate cross-sectional views of the body of the apparatus for dispensing a stream of liquid along with the plunger, in accordance with an embodiment of the present disclosure.
  • the body 102 of the dispenser 100 includes a container 202 adapted for storage of the liquid.
  • a hollow cylinder 204 is provided in the body 102, which can be of a height same as height of the container 202, and in which the piston 106 is allowed to reciprocate.
  • the hollow cylinder 204 at bottom, is provided with a vent 206.
  • the vent 206 is made of one or more through-holes provided in the area of the vent 206, which allows for movement of gaseous fluid from the hollow cylinder 204 to the container 202.
  • the vent 206 is covered by a diaphragm 208, which is adapted to flex based on pressure applied on it.
  • the vent 206 and the diaphragm 208 together function as a one-way valve.
  • a second container 210 present above the container 202, which is open to the outside environment.
  • the hollow cylinder 204 at the top, is provided with a vent 212.
  • the vent 212 is made of one or more through-holes provided in the area of the vent 212, which allows for movement of gaseous fluid from the second container 210 to the hollow cylinder 204.
  • the vent 212 is covered by a diaphragm 214, which is adapted to flex based on pressure applied on it.
  • the vent 212 and the diaphragm 214 together function as a one-way valve.
  • the second container 210 houses a mechanism that operates the nozzle 104 when the trigger 108 is engaged.
  • the piston 106 comprises a long, hollow tube 216 that is open to the outside environment.
  • the hollow tube 216 at a first end extends out of the dispenser 100, and at a second end is provided with a piston head 218, which is adapted to reciprocate within the hollow cylinder 204 between a first position and a second position.
  • the first position can be a point at the end of the stroke of the piston head 218, near base of the container 202, and the second position can be a point at the end of the stroke of the piston head 218 on the opposite end of the base of the container 202.
  • the piston head is provided with a vent 220.
  • the vent 220 is made of one or more through-holes provided in the area of the vent 220, which allows for movement of gaseous fluid from within the hollow tube 216 to a first section 222, defined as a space in the hollow cylinder between the piston head 218 the first position.
  • the vent 220 is covered by a diaphragm 226, which is adapted to flex based on pressure applied on it.
  • the vent 220 and the diaphragm 226 together function as a one-way valve.
  • the piston head 218 is also provided with an O-ring 228 which prevents movement of gaseous fluid between a second section 224, defined as a space in the hollow cylinder between the piston head 218 the second position, and the first section 222 through any gap between the piston head 218 and the wall of the hollow cylinder 204.
  • a second O-ring 230 is provided at top of the hollow cylinder 204 where the hollow tube 216 of the piston 106 enters the hollow cylinder 204. This is to prevent movement of gaseous fluid between the hollow cylinder 204 and the second container 210.
  • a handle 232 is provided, which, when actuated, enables movement of the piston head 218.
  • a one-way valve 234 is provided on the hollow cylinder 204, at a height that is above a top dead centre of the piston head 218.
  • the one-way valve 234 allows for movement of gaseous fluid from the second section 224 to the container 202.
  • a first weight valve 236 is provided at bottom of the container 202 and a second weight valve 238 is provided at top of the container 202.
  • the weight valves function as one-way valves.
  • gaseous fluid in the first section 222 gets compressed.
  • the compressed gaseous fluid acts on the diaphragm 226 to push the diaphragm 226 against the vent 220, thereby forming a seal and preventing any escape of gaseous fluid from the first section 222 to the hollow tube 216.
  • the compressed gaseous fluid acts on the diaphragm 208 to push it away from the vent 206, thereby allowing compressed gaseous fluid from the first section 222 to enter the container 202, thereby pressurising the inside of the container 202.
  • piston 106 moves towards the first position of the piston head 218, a vacuum (or, negative pressure) is created in the second section 224, which causes the diaphragm 214 to move away from the vent 212, thereby allowing gaseous fluid from the second container 210 to fill into second section 224.
  • gaseous fluid in the second section 224 gets compressed.
  • the compressed gaseous fluid acts on the diaphragm 214 to push the diaphragm 214 against the vent 212, thereby forming a seal and preventing any escape of gaseous fluid from the second section 224 to the second container 210.
  • FIG. 3 illustrates an exemplary cross-sectional view of the apparatus for dispensing a stream of liquid, in accordance with an embodiment of the present disclosure.
  • the liquid is forced to enters either the first weight valve 236 or the second weight valve 238, based on the orientation of the dispenser 100.
  • Each weight valve (236, 238) comprises a dead weight (302, 304) respectively.
  • the dead weight (302, 304) control opening to respective inlet (306, 308) of the valve (236, 238).
  • the dead weight 304 of the second valve 238 drops, thereby opening inlet 308 of the first valve 238.
  • the liquid enters the valve 238.
  • the compressed liquid rises, through pipes, to an ante-chamber 310 behind the nozzle, ready to be dispensed from the nozzle.
  • the trigger 108 when actuated, operates a stopper 312 separating the ante-chamber 310 from the nozzle 104.
  • the stopper 312 is pulled back, allowing the liquid from the ante-chamber 310 to be dispensed through the nozzle 104 as a stream.
  • the compressed liquid is dispensed as a stream until the pressure inside the container 202 drops to a low enough value that it cannot anymore propel the liquid through the nozzle 104.
  • the trigger 108 can be spring-loaded, where, upon release of the trigger 108, the stopper 312 falls back into place and blocks flow of liquid from the ante-chamber 310 to the nozzle 104.
  • the present disclosure provides a liquid dispenser that can be pressurised quickly owing to the pressurisation action occurring during both upward and downward strokes of the piston. Further, the dispenser can be used in any orientation.
  • the present invention provides an apparatus for dispensing a stream of liquid.
  • the present invention provides a portable apparatus for dispensing a stream of liquid.
  • the present invention provides an apparatus for dispensing a stream of liquid that is independent of orientation of the apparatus.
  • the present invention provides an apparatus for dispensing a stream of liquid that can be re-used.
  • the present invention provides an apparatus for dispensing a stream of liquid that can be charged quickly.

Landscapes

  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Abstract

La présente divulgation concerne un appareil destiné à la distribution d'un liquide. Le distributeur comprend un récipient conçu pour contenir un liquide. Un cylindre creux est disposé dans le récipient, ce qui permet à un piston de se déplacer en va-et-vient dans ce dernier. Le piston est actionné pour injecter un fluide gazeux comprimé dans le récipient, ce qui permet de mettre le récipient sous pression. Le piston injecte le fluide gazeux comprimé pendant les deux courses, ce qui permet une mise sous pression plus rapide du récipient. Des soupapes balancées sont présentes aux deux extrémités du récipient pour ne laisser entrer que le liquide, ce qui permet à l'appareil d'être actionné à n'importe quelle orientation. Par l'intermédiaire de l'une quelconque des soupapes balancées, le liquide est introduit dans une antichambre. Un déclencheur présent actionne un bouchon qui sépare l'antichambre pour permettre à un flux de liquide d'être distribué par la buse.
PCT/IB2021/051759 2020-03-25 2021-03-03 Appareil de distribution d'un liquide WO2021191710A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN202011012917 2020-03-25
IN202011012917 2020-03-25

Publications (1)

Publication Number Publication Date
WO2021191710A1 true WO2021191710A1 (fr) 2021-09-30

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ID=77890980

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2021/051759 WO2021191710A1 (fr) 2020-03-25 2021-03-03 Appareil de distribution d'un liquide

Country Status (1)

Country Link
WO (1) WO2021191710A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8132695B2 (en) * 2006-11-11 2012-03-13 Medical Instill Technologies, Inc. Multiple dose delivery device with manually depressible actuator and one-way valve for storing and dispensing substances, and related method
US20190321839A1 (en) * 2016-06-27 2019-10-24 Aptar France Sas Fluid product dispensing and application assembly

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8132695B2 (en) * 2006-11-11 2012-03-13 Medical Instill Technologies, Inc. Multiple dose delivery device with manually depressible actuator and one-way valve for storing and dispensing substances, and related method
US20190321839A1 (en) * 2016-06-27 2019-10-24 Aptar France Sas Fluid product dispensing and application assembly

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