US3840179A - Spray apparatus - Google Patents

Spray apparatus Download PDF

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Publication number
US3840179A
US3840179A US00366599A US36659973A US3840179A US 3840179 A US3840179 A US 3840179A US 00366599 A US00366599 A US 00366599A US 36659973 A US36659973 A US 36659973A US 3840179 A US3840179 A US 3840179A
Authority
US
United States
Prior art keywords
spray
fan
pair
nozzle means
components
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
US00366599A
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English (en)
Inventor
D Krohn
K Smith
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Binks Sames Corp
Original Assignee
Binks Sames Corp
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 Binks Sames Corp filed Critical Binks Sames Corp
Priority to US00366599A priority Critical patent/US3840179A/en
Priority to CA198,532A priority patent/CA1006133A/en
Priority to DE2422868A priority patent/DE2422868C3/de
Priority to IT50956/74A priority patent/IT1015985B/it
Priority to NL7406562A priority patent/NL7406562A/xx
Priority to GB2413674A priority patent/GB1474087A/en
Priority to FR7418928A priority patent/FR2231435B1/fr
Priority to BE144983A priority patent/BE815812A/xx
Priority to JP49062769A priority patent/JPS5021312A/ja
Priority to CH759674A priority patent/CH596889A5/xx
Application granted granted Critical
Publication of US3840179A publication Critical patent/US3840179A/en
Priority to JP1978012549U priority patent/JPS5440460Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
    • B05B7/0807—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets
    • B05B7/0846—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets with jets being only jets constituted by a liquid or a mixture containing a liquid

Definitions

  • This invention relates to method and apparatus for spray application of multi-component systems, such as catalyzed and promoted liquid resin compositions.
  • a difficulty with many plural head spray systems is the inability to achieve complete and uniform mixing of catalyst with the liquid resin. As a result, uncured stria or soft areas may be found in the applied polymer.
  • the use of side-by side or vertically spaced spray heads, one dispensing catalyst and the other promoted resin, has not proved practical because the quantity of catalyst is small in proportion to the quantity of resin emitted from the head, and the catalyst spray fails to adequately penetrate the resin spray.
  • the problem is particularly magnified in so-called airless systems, wherein the material is atomized under hydraulic pressure, because the sprays are relatively soft and do not have the driving force of air atomized sprays.
  • the problem is also encountered with fan sprays, even if one head is supplied with resin and catalyst and the other is supplied with resin and promoter. Upon impingement, the components of the respective fans tend to travel in parallel lines and to become striated when merging into a single fan, which inhibits thorough mixing of the components.
  • the present invention overcomes the above problems with the provision of a two-headed spray apparatus from which the respective spray patterns impinge at compound angles to achieve mixing in both vertical and horizontal planes.
  • the spray heads are located in opposite quadrants with respect to central horizontal and vertical planes and are inclined inwardly to intersect along a common axis or line.
  • the intersecting droplets from respective atomized sprays each have two components of motion, which causes thorough intermixing of sprays and prevents striation. Particularly with airless sprays, complete'ancl uniform mixing occurs.
  • the spray heads emit fan-shaped patterns which impinge and form a common fan pattern.
  • the respective particles or droplets converge toward one another and intermix within the fan pattern.
  • the present apparatus also accommodates adjustment of the common fan spray pattern around a central axis by parallel adjustment of the fan spray nozzles. Such adjustment does not disturb the thorough mixing of the sprays because the compound angle impingement occurs in all parallel positions of the sprays.
  • FIG. 1 is a side view, partly .in elevation and partly in vertical section, showing a multi-component airless spray apparatus which incorporates features of the present invention
  • FIG. 2 is a fragmentary front view of the apparatus shown in FIG. 1;
  • FIGS. 3 and 4 are, respectively, fragmentary side and top views of the apparatus of FIG. 1, furtherillustrating the spray patterns issuing therefrom;
  • FIGS. 5, 6 and 7 are schematic'views illustrating vertical sections of spray patterns achieved by parallel rotary adjustments'of the two spray heads or nozzles.
  • FIGS. 8 and 9 are schematic representations, respectively, of spray patterns of prior art apparatus and of the present invention.
  • the present invention is characterized primarily as a spray apparatus having two spray heads or nozzles positioned and angled in a particular fashion, and it will be understood that the means provided for mounting the spray heads and supplying them with suitable liquid components are not critical and may be varied to suit existing conditions.
  • the spray-heads 10 and 12 are supported on a portable spray gun 14 having a longitudinal body 16 anda handle 18 depending downward from oneend of the body.
  • a head fixture 20 is secured to the front of the body and supports the spray heads 10 and 12, as will hereinafter be more fully described.
  • a pairof adjacent inlets 22 and 24 are provided on the underside of the head fixture 20, said inlets being connected by, suitable fittings to respective flexible hoses 26 and 28 which lead to different sources of pressurized liquid components.
  • One inlet is supplied with a first polymer component, usually a mixture of liquid resin and promoter, and the other inlet is supplied with a second polymer component, usually a catalyst or a mixture of liquid resin and catalyst.
  • first polymer component usually a mixture of liquid resin and promoter
  • a second polymer component usually a catalyst or a mixture of liquid resin and catalyst.
  • an alternate pair of inlets 30 for the two components may be provided at the rear of the gun, and respective bores 32 in the body 16 extend longitudinally from the inlets 30 to the chambers 34 of the inlets 22 and 24 in the head fixture 20. It will be obvious that additional alternate inlets could be provided, with the inlets that are not in active use being plugged off.
  • the gun is capable of adjustably regulating respective separate streams of the two liquid components which enter at the inlets and are discharged separately through the respective spray heads and 12. This is accomplished by two separate inlet chambers containing respective valve mechanisms that extend parallel with each other and serve to regulate the two separate streams of material.
  • One of the chambers with its respective valve mechanism is shown at 34, it being understood that since both fluid sections and their respective valve mechanisms are identical, only one thereof will be described for sake of brevity.
  • the chamber 34 is part of a longitudinal bore 36 in the head fixture which is open to the rear and contains valve means for regulating the supply of fluid to the spray head 10.
  • a valve seat 38 having an apertured depression faces the chamber and is connected to an outlet port 39 leading angularly through the head fixture 20 to the spray head 10.
  • a rod 40 is positioned centrally in the bore 36 and has an enlarged terminus or valve ball 42 at one end sealingly engageable with the valve seat 38.
  • the rod 40 extends through a sealing gland 44 carried in a compression-type fitting 46 on the other side of the chamber 34. Beyond the gland 44, the rod 40 carries a washer or annular collar 48 which is spring loaded toward valve closed position and slidably guided in a cylindrical bore in the fitting 46. The aforementioned assembly provides a seal around the axially slidable rod and prevents leakage of fluid from the chamber 34.
  • a trigger 50 is pivotally connected to the gun body at 52 near the handle, and the trigger has bifurcated lugs 54 which embrace the rod 40.
  • a pair of adjustable locking nuts 56 are provided on the threaded end of the rod to complete the assembly. Movement of the trigger 50 toward the handle 18 causes the rod to move rearwardly and open the valve. It will be understood that the trigger operates two parallel valve mechanisms conjointly such that both valves are opened and closed at about the same time.
  • the locking nuts 56 of the respective rods may be adjusted in different positions to cause either simultaneous or sequential opening and closing of the respective valves.
  • the spray heads 10 and 12 are equally spaced from the central longitudinal axis A of the head fixture 20, and the heads are located in diagonally opposite quandrants between horizontal and vertical planes passing through said axis.
  • the axes of the heads are also inclined toward the central axis preferably at equal angles, such that the head axesintersect on the central axis, as indicated in FIGS. 3 and 4.
  • the heads 10 and 12 preferably include airless spray tips or nozzles each having a cat-eye" or narrow slot outlet orifice 58 which causes liquid to be issued from each in a fan pattern.
  • the orifices 58 are adjusted to be disposed parallel to one another; in FIG. 2 vertically, so that two vertical fan patterns issue from the tips, impinge upon one another, and form a common vertical fan pattern. as shown in FIGS. 3 and 4.
  • FIG. 9 illustrates the resulting spray patternof the present invention in comparison with the illustration in FIG. 8 of a conventional two stream spray pattern.
  • FIG. 8 shows the spray pattern from a conventional two headed spray apparatus having a pair of parallel apertured fan spray heads l-I-l-I located along the same axis X-X, the heads being inclined toward one another to impinge and form a composite. pattern in a plane coincident with the central axis Z.Z between the heads.
  • the particles from the respective sprays As the particles from the respective sprays, indicated at v 89 and 61 converge, they are deflected along a single angle and tend to travel in straight parallel lines from the point of impingement. Since movement of the particles within the plane of the composite pattern is substantially parallel to the central axis Z-Z, the particles of the respective sprays tend to remain separated and thus form an unmixed and striated final spray pattern as indicated at and 62.
  • the apparatus of the present invention provides a pair of converging spray patterns which are also directed inward toward one another.
  • the central axes of the sprays converge toward one another and intersect the central longitudinal horizontal axis Z'Z'.
  • the sprays originate on a diagonal DD' on oppositesides of axis Z'Z' in locations between the vertical axis X'X' and the horizontal axis Y'Y'.
  • the particles of respective sprays converge toward the Z'-Z' axis in both coordinate planes of X'X' and YY.
  • the particles of respective sprays converge in the ZZ' axis to form a composite spray pattern wherein the particles continue to converge in the X'-X' and YY' axes.
  • the respective particles have two components of motion relative to the composite pattern, which results in greater mixing efficiency; in fact, completely uniform and thorough mixing as indicated at 63 in FIG. 9.
  • FIGS. 5-7 illustrate how the composite spray pattern may be adjusted about the central axis A without loss of aforementioned mixing benefits.
  • the apertures in the spray heads are adjusted in parallel to respective vertical and horizontal parallel positions to achieve, respectively, a vertically or a horizontally elongated fan spray pattern.
  • the separate spray patterns represented by dot-dash lines
  • a similar result is achieved if the spray pattern is adjusted to an intermediate position between horizontal and vertical without loss of compound angle impingement, as shown in FIG. 6.
  • the only important consideration for proper mixing is that the apertures not coincide with the same line and be maintained in parallel to allow the separate sprays to be coextensive at the line of intersection.
  • Apparatus for spraying first and second liquid components which react with one another upon mixing comprising a pair of spray nozzle means, supportmeans for mounting said pair of spray nozzle means about a common axis, means for supplying one of said nozzle means with said first component and means for supplying the other of said nozzle means with said second liquid component, said spray nozzle means being supported in respective opposite quandrants between horizontal and vertical with respect to said common axis and inspaced relation thereto, said spray nozzle means having respective axes disposed on inclined paths intersecting said common axis, whereby the reactive sprays from the respective nozzle means intersect one another at compound angles externally of said spray nozzle means.
  • each of said spray nozzle means comprises orifice means for producing a fan spray, whereby the two fan sprays impinge to form a common fan spray moving in a plane coincident with said common axis, and wherein particles of the two sprays converge in the plane of said common fan spray.
  • the apparatus of claim 2 further comprising separate valve means for controlling each of said pair of nozzle means, and means for operating said valve means conjointly.
  • nozzle means comprises a nozzle body and said means for producing a fan spray comprises a part rotatable in said nozzle body, said parts being rotatable in said bodies to maintain the two fan sprays in parallel relationship.
  • a spray gun for spraying first and second liquid components which react with one another upon mixing comprising a spray gun body having a pair of liquid inlets therein and a handle, means for supplying one of said inlets with said first liquid component, means for supplying the other of said inlets with said second component, a pair of spray nozzles mounted on said body,
  • nozzles a pair of separate chambers connecting respective inlets to respective nozzles, separate valve means in each of said chambers, means for operating said valve means conjointly, said nozzles being directed generally through an unobstructed space toward a common axis and being mounted on said body in opposite quandrants between horizontal and vertical with respect to said common axis, said nozzles being arranged at compound angles with respect to said common axis to cause intermixing of the first and second components externally of said nozzles.
  • Method of simultaneously mixing and spraying a plurality of reactive components in a composite spray comprising the steps of spraying one of said components on an angle horizontally inward and vertically upward along a first axis, and spraying another of said components horizontally inward and vertically downward along a second axis substantially intersecting the first to cause the respective sprays to converge at compound angles with' respect to a common axis.
  • the method of claim 8 including the steps of adjustably rotating the planes of said first and second fans along parallel lines to adjustably rotate the plane of said third fan;

Landscapes

  • Nozzles (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
US00366599A 1973-06-04 1973-06-04 Spray apparatus Expired - Lifetime US3840179A (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
US00366599A US3840179A (en) 1973-06-04 1973-06-04 Spray apparatus
CA198,532A CA1006133A (en) 1973-06-04 1974-04-30 Spray apparatus
DE2422868A DE2422868C3 (de) 1973-06-04 1974-05-10 Mehrköpfige Spritzpistole
IT50956/74A IT1015985B (it) 1973-06-04 1974-05-13 Perfezionamento negli apparecchi per spruzzare sistemi liquidi a piu componenti
NL7406562A NL7406562A (ja) 1973-06-04 1974-05-16
FR7418928A FR2231435B1 (ja) 1973-06-04 1974-05-31
GB2413674A GB1474087A (en) 1973-06-04 1974-05-31 Spray apparatus
BE144983A BE815812A (fr) 1973-06-04 1974-05-31 Appareil de pulverisation
JP49062769A JPS5021312A (ja) 1973-06-04 1974-06-03
CH759674A CH596889A5 (ja) 1973-06-04 1974-06-04
JP1978012549U JPS5440460Y2 (ja) 1973-06-04 1978-02-03

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00366599A US3840179A (en) 1973-06-04 1973-06-04 Spray apparatus

Publications (1)

Publication Number Publication Date
US3840179A true US3840179A (en) 1974-10-08

Family

ID=23443681

Family Applications (1)

Application Number Title Priority Date Filing Date
US00366599A Expired - Lifetime US3840179A (en) 1973-06-04 1973-06-04 Spray apparatus

Country Status (10)

Country Link
US (1) US3840179A (ja)
JP (2) JPS5021312A (ja)
BE (1) BE815812A (ja)
CA (1) CA1006133A (ja)
CH (1) CH596889A5 (ja)
DE (1) DE2422868C3 (ja)
FR (1) FR2231435B1 (ja)
GB (1) GB1474087A (ja)
IT (1) IT1015985B (ja)
NL (1) NL7406562A (ja)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985004350A1 (en) * 1984-03-23 1985-10-10 Haden Drysys International Limited Apparatus and method for applying material to articles
US4735359A (en) * 1986-02-24 1988-04-05 Demyanovich Robert J Liquid mixing employing expanding, thinning liquid sheets
US4872417A (en) * 1985-07-05 1989-10-10 Honda Giken Kogyo Kabushiki Kaisha Method of and apparatus for automatically coating a workpiece
USRE33531E (en) * 1986-02-24 1991-02-05 Liquid mixing employing expanding thinning liquid sheets
US5474789A (en) * 1992-08-07 1995-12-12 Sekisui Jushi Kabushiki Kaisha Treating method for keeping food fresh
EP0734781A1 (fr) * 1995-03-29 1996-10-02 L'oreal Organe de distribution pour la pulvérisation simultanée de deux produits et dispositif de conditionnement équipé d'un tel organe de distribution
EP0925839A3 (en) * 1997-12-15 2001-01-10 Graco Inc. Orbital applicator for tapered edge patterns of spray coatings
US20070095939A1 (en) * 2005-10-18 2007-05-03 Nottingham-Spirk Design Associates, Inc. Dual nozzle sprayer
US20070125877A1 (en) * 2005-12-01 2007-06-07 3M Innovative Properties Company Multi-component liquid spray systems
US20070125888A1 (en) * 2005-12-01 2007-06-07 3M Innovative Properties Company Multi-component liquid spray systems
US20070125886A1 (en) * 2005-12-01 2007-06-07 3M Innovative Properties Company Methods of spraying multi-component liquids
FR2974522A1 (fr) * 2011-04-28 2012-11-02 Laurent Thierry Dispositif de projection de composants liquides pour un traitement de surface et procede associe
US20130221133A1 (en) * 2012-02-27 2013-08-29 Skf Lubrication Systems France Lubrication nozzle and associated mounting method
US20150017327A1 (en) * 2013-07-11 2015-01-15 L&P Property Management Company Two-component handheld spray gun
US20160030955A1 (en) * 2014-07-31 2016-02-04 Steven E. Adams Two Component Airless Adhesive Spray Gun and Method of Use
US20170173609A1 (en) * 2015-12-16 2017-06-22 Robert J. Rose Two Component Adhesive Spray Gun and Spray Pattern
CN108397212A (zh) * 2018-02-09 2018-08-14 北京市政路桥股份有限公司 一种混凝土喷嘴和使用方法
IT201700033873A1 (it) * 2017-03-28 2018-09-28 Roberto Trovi Dispositivo di spruzzo airless

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2553006B1 (fr) * 1983-10-11 1987-01-30 Sames Sa Dispositif de projection a debit relativement grand de produit de revetement
US11077458B2 (en) 2016-10-19 2021-08-03 Baldwin Jimek Ab Arrangement at spray nozzle chamber
CN107961932A (zh) 2016-10-19 2018-04-27 鲍德温·伊梅克股份公司 喷雾喷嘴装置
SE543963C2 (en) 2020-02-28 2021-10-12 Baldwin Jimek Ab Spray applicator and spray unit comprising two groups of spray nozzles

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3212717A (en) * 1963-04-02 1965-10-19 Outboard Marine Corp Spray gun

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985004350A1 (en) * 1984-03-23 1985-10-10 Haden Drysys International Limited Apparatus and method for applying material to articles
EP0158469A1 (en) * 1984-03-23 1985-10-16 Haden Drysys International Limited Apparatus and method for applying material to articles
US4692358A (en) * 1984-03-23 1987-09-08 Haden Drysys International Limited Apparatus and method for applying material to articles
US4872417A (en) * 1985-07-05 1989-10-10 Honda Giken Kogyo Kabushiki Kaisha Method of and apparatus for automatically coating a workpiece
US4735359A (en) * 1986-02-24 1988-04-05 Demyanovich Robert J Liquid mixing employing expanding, thinning liquid sheets
USRE33531E (en) * 1986-02-24 1991-02-05 Liquid mixing employing expanding thinning liquid sheets
US5474789A (en) * 1992-08-07 1995-12-12 Sekisui Jushi Kabushiki Kaisha Treating method for keeping food fresh
EP0734781A1 (fr) * 1995-03-29 1996-10-02 L'oreal Organe de distribution pour la pulvérisation simultanée de deux produits et dispositif de conditionnement équipé d'un tel organe de distribution
FR2732245A1 (fr) * 1995-03-29 1996-10-04 Oreal Organe de distribution pour la pulverisation simultanee de deux produits et dispositif de conditionnement equipe d'un tel organe de distribution
EP0925839A3 (en) * 1997-12-15 2001-01-10 Graco Inc. Orbital applicator for tapered edge patterns of spray coatings
US7568636B2 (en) * 2005-10-18 2009-08-04 Nottingham-Spirk Design Associates, Inc. Dual nozzle sprayer
US20070095939A1 (en) * 2005-10-18 2007-05-03 Nottingham-Spirk Design Associates, Inc. Dual nozzle sprayer
US20070125877A1 (en) * 2005-12-01 2007-06-07 3M Innovative Properties Company Multi-component liquid spray systems
US20070125888A1 (en) * 2005-12-01 2007-06-07 3M Innovative Properties Company Multi-component liquid spray systems
US20070125886A1 (en) * 2005-12-01 2007-06-07 3M Innovative Properties Company Methods of spraying multi-component liquids
FR2974522A1 (fr) * 2011-04-28 2012-11-02 Laurent Thierry Dispositif de projection de composants liquides pour un traitement de surface et procede associe
US20130221133A1 (en) * 2012-02-27 2013-08-29 Skf Lubrication Systems France Lubrication nozzle and associated mounting method
CN103375673A (zh) * 2012-02-27 2013-10-30 法国Skf润滑油系统公司 润滑喷嘴和相关的安装方法
US8925688B2 (en) * 2012-02-27 2015-01-06 Aktiebolaget Skf Lubrication nozzle and associated mounting method
US20150017327A1 (en) * 2013-07-11 2015-01-15 L&P Property Management Company Two-component handheld spray gun
US20160030955A1 (en) * 2014-07-31 2016-02-04 Steven E. Adams Two Component Airless Adhesive Spray Gun and Method of Use
US9821332B2 (en) * 2014-07-31 2017-11-21 Steven E. Adams Two component airless adhesive spray gun and method of use
US10040079B2 (en) * 2014-07-31 2018-08-07 Steven E. Adams Two component airless adhesive spray gun and method of use
US20170173609A1 (en) * 2015-12-16 2017-06-22 Robert J. Rose Two Component Adhesive Spray Gun and Spray Pattern
US10493474B2 (en) * 2015-12-16 2019-12-03 Worthen Industries Two component adhesive spray gun and spray pattern
IT201700033873A1 (it) * 2017-03-28 2018-09-28 Roberto Trovi Dispositivo di spruzzo airless
EP3381567A1 (en) * 2017-03-28 2018-10-03 Trovi, Roberto An airless spray device
CN108397212A (zh) * 2018-02-09 2018-08-14 北京市政路桥股份有限公司 一种混凝土喷嘴和使用方法

Also Published As

Publication number Publication date
DE2422868B2 (de) 1979-01-18
DE2422868A1 (de) 1974-12-19
CH596889A5 (ja) 1978-03-31
DE2422868C3 (de) 1979-10-04
FR2231435B1 (ja) 1978-01-13
CA1006133A (en) 1977-03-01
JPS5021312A (ja) 1975-03-06
FR2231435A1 (ja) 1974-12-27
BE815812A (fr) 1974-09-16
NL7406562A (ja) 1974-12-06
JPS53119014U (ja) 1978-09-21
IT1015985B (it) 1977-05-20
JPS5440460Y2 (ja) 1979-11-28
GB1474087A (en) 1977-05-18

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