WO2005016547A1 - Embout de buse de pulverisation - Google Patents

Embout de buse de pulverisation Download PDF

Info

Publication number
WO2005016547A1
WO2005016547A1 PCT/US2004/025986 US2004025986W WO2005016547A1 WO 2005016547 A1 WO2005016547 A1 WO 2005016547A1 US 2004025986 W US2004025986 W US 2004025986W WO 2005016547 A1 WO2005016547 A1 WO 2005016547A1
Authority
WO
WIPO (PCT)
Prior art keywords
fluid
spray tip
nozzle
passageway
fluid dispensing
Prior art date
Application number
PCT/US2004/025986
Other languages
English (en)
Inventor
Daniel P. Brown
Original Assignee
Two-Part Foam Propellants, Inc.
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
Priority claimed from US10/638,611 external-priority patent/US20050035153A1/en
Priority claimed from US10/649,142 external-priority patent/US20050045741A1/en
Application filed by Two-Part Foam Propellants, Inc. filed Critical Two-Part Foam Propellants, Inc.
Publication of WO2005016547A1 publication Critical patent/WO2005016547A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/7438—Mixing guns, i.e. hand-held mixing units having dispensing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/45—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/45—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads
    • B01F25/452—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by elements provided with orifices or interstitial spaces
    • B01F25/4523—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by elements provided with orifices or interstitial spaces the components being pressed through sieves, screens or meshes which obstruct the whole diameter of the tube
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/50—Movable or transportable mixing devices or plants
    • B01F33/501—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use
    • B01F33/5011—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use portable during use, e.g. hand-held
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/50—Movable or transportable mixing devices or plants
    • B01F33/501—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use
    • B01F33/5011—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use portable during use, e.g. hand-held
    • B01F33/50114—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use portable during use, e.g. hand-held of the hand-held gun type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
    • B05B1/04—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in flat form, e.g. fan-like, sheet-like
    • B05B1/042—Outlets having two planes of symmetry perpendicular to each other, one of them defining the plane of the jet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
    • B05B1/304—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve
    • B05B1/3046—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice
    • B05B1/3066—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice the valve element being at least partially hollow and liquid passing through it when the valve is opened
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/12—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages
    • B05B7/1209—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means for each liquid or other fluent material being manual and interdependent

Definitions

  • This invention relates to fluid dispensing devices, and more particularly to a spray tip for use with a fluid dispensing device that can be used to spray a high density fluid in spray pattern.
  • the two fluid components are commonly referred to as the "A resin” and the “B resin”. They usually consist of polymeric isocyanate and polyol amine, respectively.
  • the components are supplied separately in two pressurized containers that are attached by hoses to inlets to the guns.
  • the foam components are typically sold to provide foams having a density ranging between 1.0 to 4 lbs/ft 3 .
  • the nozzles for the guns in which the two components are first mixed are typically designed to be replaceable and disposable so as to avoid the necessity for cleaning the nozzles.
  • the spray pattern is affected by the density of the foam being sprayed. Foam having a density of less than 2.5 lbs/ft 3 can typically be dispensed tlirough known nozzles to provide a satisfactory spray pattern. It is difficult, however, to achieve a satisfactory spray pattern (i.e. a spray pattern that sprays a uniform area) when dispensing higher density foams (i.e. foams having a density of at least 2.5 lbs/ft 3 ) through known nozzles having a typical spray tip.
  • a typical nozzle and spray tip dispenses foam through an orifice.
  • Foam having a density less than 2.5 lbs/ft 3 is typically expelled tlirough a variety of orifices to form a spray pattern that can cover a large vertical area.
  • the ability to spray a lower density foam through an orifice is known in the art.
  • higher density foam tends to exhaust from the orifice in a thick fire hose pattern which is only suitable for shooting foam into a hole or cavity.
  • the present invention provides a fluid dispensing spray tip suitable for spraying a high density foam.
  • the spray tip includes a body defining a passageway therethrough.
  • the passageway has an inlet for receiving a pressurized fluid and terminates in a reservoir.
  • the reservoir intersects a V-groove formed through at least one wall of the body and forms an elongated aperture for dispensing the fluid therethrough.
  • a general objective of the present invention is to provide a spray tip that can spray fluids of different densities in a known spray pattern. This objective is accomplished by provided a spray tip having a body including a reservoir intersected by a
  • V-groove formed through a wall of the body to form an elongated aperture for dispensing the fluid therethrough.
  • Another objective of the present invention is to control the spread of foam expelled through a spray trip to further define the spray pattern. This objective is accomplished by providing shaping lips downstream of the elongated aperture to further define the spray pattern of the dispensed fluid.
  • FIG. 1 is a view in elevation of a foam dispensing gun in accordance with the present invention
  • FIG. 2 is a view in horizontal section taken in the plane of the line 2—2 of FIG.
  • FIG. 3 is a detailed partial view in vertical section taken in the plane of the line
  • Fig. 4 is a top view of the nozzle of Fig. 1;
  • FIG. 5 is a front view of the nozzle of Fig. 4;
  • Fig. 6 is a sectional view along line 6-6 of Fig. 5;
  • Fig. 7 is a detailed sectional view along line 7-7 of Fig. 6;
  • Fig. 8 is a spray pattern of a prior art nozzle
  • Fig. 9 is a view of the spray pattern along line 9-9 of Fig. 8;
  • Fig. 10 is a spray pattern of a nozzle incorporating the present invention.
  • Fig. 11 is a view of the spray pattern along line 10-10 of Fig. 10;
  • Fig. 12 is a table showing spray tips incorporating the present invention having different combinations of tip entrance diameters and front spray face angles;
  • Fig. 13 is a view in elevation of another embodiment of a foam dispensing gun having a external threads for detachably fixing a detachable spray tip in accordance with the present invention
  • Fig. 14 is a top view of a detachable spray tip for detachably fixing to the gun of Fig. 13;
  • Fig. 15 is a front view of the nozzle of Fig. 14;
  • Fig. 16 is a side view of the spray tip of Fig. 14;
  • Fig. 17 is a sectional view along line 17-17 of Fig. 16.
  • the foam dispensing gun disclosed herein is substantially identical to the foam dispensing gun disclosed in U.S. Pat. No. 5,462, 204 with the exception that it includes, as described below, a spray tip for producing a desired fan spray pattern when spraying a high density foam.
  • U.S. Pat, No. 5,462,204 is assigned to the assignee of the present invention, and is fully incorporated herein by reference.
  • the multi-component foam dispensing gun disclosed herein is preferred, fluid dispensing gun having a spray tip, as disclosed herein, without departing from the scope of the invention.
  • the foam dispensing gun includes a body 10 with a handle 11 that may be formed integral with the body 10.
  • the body 10 and handle 11 may be molded from a synthetic resin material.
  • the body 10 is formed with a pair of longitudinal, parallel passageways 12 and 13.
  • the passageways 12 and 13 are divided into forward and rearward portions by an intermediate chamber 14.
  • the rearward portions of the passageways 12 and 13 mount brass connectors 15 that have a ribbed end for attachment to hoses connected to pressurized containers for fluid components that are used to form the foam.
  • the connectors 15 are hollow and define passageway inlets leading from the tanks of components.
  • the bushings 22 are also hollow and mount duck-bill valves 25 in their center.
  • the duck-bill valves 25 are formed of a rubber or other elastomeric material and function as one-way valves to permit fluid under pressure to enter a passageway 12 or
  • Each bushing 22 is disposed against a bellville spring 26 which bears against an end of the respective connector 15 thereby urging the bushing 22 inwardly in the passageway 12 or 13 until it abuts against a shoulder 27.
  • a coiled spring 30 is disposed in each of the passageways 12 and 13. The spring 30 bears at one end against an end of a respective bushing 22. The other ends of the springs 30 bear against the ends of brass needle valve members 31 also disposed in the passageways 12 and 13.
  • the needle valve members 31 span the chamber 14 and are received in both the forward and rearward portions of the passageways 12 and 13.
  • the needle valve members 31 have a rear portion provided with a radial recess 32 that mounts an O-ring 33 to seal with the rearward portion of the passageway 12 or 13.
  • the forward portion of each valve member 31 is formed as a conical needle valve portion 35 terminating in a circular cylindrical tip 36.
  • the conical needle valve portion 35 and tip 36 mate with a conical valve seat 37 having a circular cylindrical extension 38 and formed in the body 10 at the front terminus of the passageways 12 and 13.
  • the valve seats 37 define passageway outlets, and open directly through the front face of a nose 40 on the body 10.
  • the valve members 31 have an annular recess 39 behind the conical needle valve portion 35.
  • the recess 39 mounts an O-ring 41 that seals the junction of the needle valve portion 35 and the conical valve seat 37 when the valve is closed, as shown in Fig. 2.
  • the valve members 31 have an additional annular recess 45 that mounts an O-ring 46 that seals with the forward portions of the passageways 12 and 13.
  • the chamber 14 mounts a yoke 50 formed at the top of a trigger lever 51.
  • the yoke 50 has a pair of arms 52 terminating in lateral bosses 53 that are received for pivotal movement in holes 54 in the two sides of the body 10, as shown in Fig. 3.
  • the yoke 50 also includes a central rib 55 which, with the arms 52, defines two spaced cradles 56 that receive necked down portions 57 intermediate the ends of the valve members 31.
  • the springs 30 normally urge the valve members 31 forwardly to close the needle valves 35 against the valve seats 37.
  • the trigger lever 51 can be rotated to withdraw the valve members 31 against the urgings of the springs 30 to open the valves.
  • Each valve member 31 has a central internal passage 60 that terminates in a transverse port 61 that extends to the surface of the valve member at a point between the O-rings 40 and 46.
  • a transverse port 61 that extends to the surface of the valve member at a point between the O-rings 40 and 46.
  • a disposable nozzle 65 is mounted on the front of the gun 10.
  • the nozzle 65 has a hollow interior that defines a mixing chamber 66 interposed between an inlet chamber and an outlet 67.
  • a helical static mixer 68 of known construction is mounted in the mixing chamber 66.
  • the rear end of the nozzle 65 upstream of the mixing chamber 66 has an enlarged circular cylindrical portion 69 which surrounds the nose 40 of the body 10 and is sealed thereto by an O-ring 70.
  • the cylindrical portion 69 also defines the open inlet chamber.
  • An annular ring 80 formed around the nozzle 65 proximal the outlet 67 provides grasping surfaces for securely grasping the nozzle 65 when attaching and detacliing the nozzle 65 from the gun body 10.
  • a pair of resilient arms 71 extend along either side of the nozzle rearwardly from the enlarged cylindrical portion 69.
  • the resilient arms 71 are adapted to engage ears 72 that extend from opposite sides of the body 10 adjacent the nose 40.
  • the resilient arms 71 have a curved portion 73 adjacent their ends which terminates in a notch 74 that mates with an ear 72.
  • the nozzle can be quickly attached to the body 10 by sliding the resilient arms 71 beneath the ears 72.
  • the curved portions 73 will cam the arms 71 so that " the arms will slide easily past the ears 72 until the notches 74 engages with the ears 72.
  • the nozzles 65 can be easily removed by manually depressing the curved ends 73 of the arms 71 to release the notches 74 from the ears 72 and allow the arms 71 to slide past the ears 72.
  • detachably fixing the nozzle to the body is preferred, as described above, the nozzle can form an integral and/or permanent part of the body, or be detachably fixed to the body using other methods, such as by using a threaded engagement, snap fit, friction fit, fasteners, and the like, without departing from the scope of the invention.
  • the static mixer 68 includes a wall portion 76 which is located in the open inlet chamber defined by the enlarged cylindrical end 69 of the nozzle. As shown in Fig. 2, the wall portion 76 divides the inlet chamber and is positioned between the valve seats 37 so that complete mixing of the two fluid components does not occur immediately at the nose 40. If the nozzle 65 should become clogged with foam and not be replaced, the subsequent opening of the valves could result in the fluid of higher pressure being forced from the mixing chamber through the valve seat for the other component in the reverse direction.
  • the duckbill valves 25 prevent such cross-contamination which would result in set-up of the components within the gun if allowed to occur.
  • the nozzle 65 dispenses the mixed foam components through a spray tip 84 disposed at the nozzle outlet 67.
  • the spray tip 84 includes a body 86 having a hollow interior 88 defining a passageway therethrough,
  • the passageway includes a spray tip inlet 90 in fluid communication with the nozzle hollow interior, and terminates in a reservoir 92 in fluid communication with a spray tip outlet 94. Fluid flowing through the spray tip passageway enters through the spray tip inlet 90 and flows into the reservoir 92 prior to exiting through the spray tip outlet 94.
  • the reservoir 92 is formed in the body 86 of the spray tip 84, and preferably has a concave semi-spherical shape that guides the fluid toward the spray tip outlet 94.
  • the diameter of the semi-spherical shape is referred to as a tip entrance diameter, and is preferably between about 0.10 and 2.5 inches.
  • the preferred tip diameter is dependent upon the foam density, material output, and desired spray pattern, and thus can fail outside of the preferred tip diameter range disclosed herein.
  • a V-groove 96 formed in the spray tip body 86 intersects the reservoir 92 to form an elongated aperture 98 that defines the spray tip outlet 94.
  • the elongated aperture 98 provides a flattened fan spray pattern, such as shown in Figs. 10 and 11, compared to a conical flow pattern, such as shown in Fig. 8 and 9, produced by a prior art spray tip having an orifice.
  • the V-groove 96 is defined by an angle A which can range between about 15° and 30° to produce the desired fan spray pattern.
  • the V- groove angle A can be less than 15° or greater than 30° depending upon the desired fan spray pattern. As the V-groove angle decreases, the spread of the fan spray narrows.
  • V-groove angles and tip entrance diameters can be provided without departing from the scope of the invention, and depend upon the desired spray pattern and foam density.
  • tip entrance diameters and V-groove angles also referred to as front face spray angles.
  • Diverging shaping lips 100 extend from elongated edges 102 of the aperture 98 to further shape and limit the spray pattern spread of the fluid exhausting through the spray tip outlet 94 to maintain a desired foam density on the object being sprayed.
  • the foam density is also affected by many other factors, such as formulation, fluid pressure, distance from the object being sprayed, and the like.
  • the lips 100 diverge at an angle equal to the V-groove angle to form a pair of continuous diverging walls extending from the reservoir 92.
  • the lips 100 can diverge at an angle different from the V-groove angle without departing from the scope of the invention.
  • lips 100 jutting out from the spray tip body 86 are shown, the lips 100 can be formed as part of a V-groove 96 extending deep into the body 86 and intersecting with the reservoir 92 to form the aperture 98, without departing from the scope of the invention.
  • the spray tip 84 is especially suited for spraying a high density foam (i.e. a foam having a density of at least 2.5 lbs/ft 3 ) in a fan spray pattern.
  • the reservoir 92 maintains a supply of pressurized foam upstream of the elongated aperture which restricts the high density foam in one dimension to form the fan spray pattern.
  • the shaping lips 100 maintain the fan spray pattern by controlling the foam expansion immediately downstream of the aperture.
  • the spray tip 84 can used with foams having a density less than 2.5 lbs/ft 3 without departing from the scope of the invention.
  • a spray tip 184 is detachably fixable to a foam dispensing gun 110.
  • the spray tip 184 includes a body 186 having a hollow interior 188 defining a passageway therethrough,
  • the passageway includes a spray tip inlet 190 in fluid communication with the nozzle hollow interior, and terminates in a reservoir 192 in fluid communication with a spray tip outlet 194. Fluid flowing through the spray tip passageway enters through the spray tip inlet 190 and flows into the reservoir 192 prior to exiting through the spray tip outlet 194.
  • Internal threads 191 are formed in the body for threadably engaging a nozzle 186 forming part of the gun 110.
  • a V-groove 196 intersects the reservoir 192 to form an aperture 198 defining the spray tip outlet 194.
  • shaping lips 200 can be provided to further shape the spray pattern of the fluid.
  • the gun 110 includes the nozzle 165 having a nozzle outlet 167 with external threads 182.
  • the spray tip inlet internal threads 191 threadably engage the external threads 182 to detachably fix the spray tip 184 to the nozzle 165, such as disclosed in copending U.S. Patent Application entitled “MULTI-COMPONENT FLUID NOZZLE ASSEMBLY WITH DETACHABLE NOZZLE SPRAY TIP", filed on August 11, 2003, assigned Attorney Docket No. 790380.00002, and fully incorporated herein by reference.
  • Opposing wings 195 extending radially from the detachable spray tip 184 provide engagement surfaces for rotating the spray tip 84 to threadably engage the internal threads 191 with the external threads 182.
  • other means can be provided for securely grasping the spray tip to detachably fix the spray tip to the nozzle end, such as a single wing, a knurled exterior surface, a geometric external cross section for engaging a wrench, and the like, without departing from the scope of the invention.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles (AREA)

Abstract

La présente invention concerne un embout de buse de distribution de fluide (84) convenant à la dispersion d'une mousse dense. Cet embout comporte un corps (86) définissant un passage le traversant. Ce passage (88) présente un orifice d'entrée (90) recevant un fluide sous pression et se termine dans un réservoir (92). Le réservoir (92) coupe une rainure en V (96) qui est réalisée au travers d'au moins une paroi du corps (86) constitue une ouverture de forme allongée (98) par laquelle passe le fluide à distribuer.
PCT/US2004/025986 2003-08-11 2004-08-11 Embout de buse de pulverisation WO2005016547A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US10/638,611 2003-08-11
US10/638,611 US20050035153A1 (en) 2003-08-11 2003-08-11 Multi-component fluid dispensing device with mixing enhancement
US10/649,142 US20050045741A1 (en) 2003-08-27 2003-08-27 Nozzle spray tip
US10/649,142 2003-08-27

Publications (1)

Publication Number Publication Date
WO2005016547A1 true WO2005016547A1 (fr) 2005-02-24

Family

ID=34198361

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/025986 WO2005016547A1 (fr) 2003-08-11 2004-08-11 Embout de buse de pulverisation

Country Status (1)

Country Link
WO (1) WO2005016547A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4104933A1 (fr) * 2021-06-16 2022-12-21 Commissariat à l'énergie atomique et aux énergies alternatives Buse de projection d'une mousse

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3754710A (en) * 1971-08-07 1973-08-28 Inouye Shokai & Co Ltd K K Nozzle tip of a spray gun of the airless type
US5143302A (en) * 1990-02-15 1992-09-01 Shimon Kabushiki Kaisha Airless spray nozzle
US5462204A (en) * 1994-03-29 1995-10-31 Rhh Foam Systems, Inc. Foam dispensing gun
US5639025A (en) * 1995-07-07 1997-06-17 The Procter & Gamble Company High Viscosity pump sprayer utilizing fan spray nozzle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3754710A (en) * 1971-08-07 1973-08-28 Inouye Shokai & Co Ltd K K Nozzle tip of a spray gun of the airless type
US5143302A (en) * 1990-02-15 1992-09-01 Shimon Kabushiki Kaisha Airless spray nozzle
US5462204A (en) * 1994-03-29 1995-10-31 Rhh Foam Systems, Inc. Foam dispensing gun
US5639025A (en) * 1995-07-07 1997-06-17 The Procter & Gamble Company High Viscosity pump sprayer utilizing fan spray nozzle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4104933A1 (fr) * 2021-06-16 2022-12-21 Commissariat à l'énergie atomique et aux énergies alternatives Buse de projection d'une mousse

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