US3583634A - Spray nozzle - Google Patents

Spray nozzle Download PDF

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Publication number
US3583634A
US3583634A US780508A US78050868A US3583634A US 3583634 A US3583634 A US 3583634A US 780508 A US780508 A US 780508A US 78050868 A US78050868 A US 78050868A US 3583634 A US3583634 A US 3583634A
Authority
US
United States
Prior art keywords
spray
nozzle
housing
deflector
opening
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
US780508A
Other languages
English (en)
Inventor
Charles E Sheetz
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.)
FMC Corp
Original Assignee
FMC 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 FMC Corp filed Critical FMC Corp
Priority to US780508A priority Critical patent/US3583634A/en
Priority to GB57812/69A priority patent/GB1262795A/en
Priority to NL6917896A priority patent/NL6917896A/xx
Priority to DE6946748U priority patent/DE6946748U/de
Priority to DE19691960510 priority patent/DE1960510A1/de
Priority to FR6941517A priority patent/FR2025045A1/fr
Priority to JP9627569A priority patent/JPS4744083B1/ja
Application granted granted Critical
Publication of US3583634A publication Critical patent/US3583634A/en
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
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/28—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with integral means for shielding the discharged liquid or other fluent material, e.g. to limit area of spray; with integral means for catching drips or collecting surplus liquid or other fluent material

Definitions

  • ABSTRACT A low volume spray nozzle which is comprised of a conventional spray nozzle and a housing enclosing the nozzle but having an opening at the lower end thereof in line with the discharge from the nozzle A deflector cone is positioned within the housing about the opening permitting a small percentage of the spray to pass through the opening while deflecting the rest into the housing where it can be collected and directed back to the spray supply tank.
  • the present invention comprises a low volume spray nozzle which overcomes the problems presented by the prior art.
  • a conventional spray nozzle may be utilized having a uniform spray pattern of any desired peripheral shape.
  • a housing is then provided around the spray nozzle with an opening at the lower end thereof and a deflector is provided adjacent to the opening and spaced a predetermined distance from the tip of the nozzle to divert the major portion of the spray into the enclosed chamber of the housing while permitting only a small portion of the spray to be directed through the housing.
  • the diverted spray is then collected and returned in a line to the spray material supply tank.
  • the drawing is a central section through the spray nozzle of the present invention and particularly illustrates the manner in which the spray is diverted.
  • the spray nozzle of the present invention generally comprises a nozzle structure I and a housing 2 surrounding the discharge end of the nozzle and providing a chamber 3 about the nozzle for collecting a predetermined portion of the spray and returning it to the spray material supply tank (not shown) through a return hose 4.
  • the nozzle 1 may be any conventional low volume nozzle. Preferably, it should be one having a uniform spray pattern ejected from the discharge orifice for more easily controlled results.
  • a conical spray S issues from the orifice which spray is uniform in density throughout any circular plane normal to the direction of movement of the spray particles.
  • a cylindrical adapter section 6 is fitted to the rearward end of the nozzle so that the nozzle may be mounted for adjustment without the housing.
  • Housing 2 functions as an adapter for the nozzle 1 and comprises a generally cylindrical tubing member having a lower portion 10 spaced outwardly from the nozzle and a reduced upper portion 8 into which is fitted a bearing 9 for mounting the adapter section 6 of the nozzle.
  • the lower portion of the housing is provided with a circular opening 11 concentric with the axis of the housing and defining an annular shoulder 12 to catch droplets of liquid which may run down the outer surface of the deflector.
  • Adjacent to narrow l1 and spaced slightlythereabove is a narrow, integrally formed lip 13. This lip is used to support a removable conical deflector 14 which is further retained within the lower end of the housing by means of a spacer ring 15 fitted therein and located just about the outer edge of the deflector.
  • the deflector of the preferred embodiment is seen to comprise a conical member with an orifice 18 at the upper end thereof located concentrically in the spray housing.
  • This ori fice is defined by a sharp knife edge of circular shape from which the conical side surface 20 of the deflector slopes outwardly to the interior wall of the housing.
  • an aperture 22 is provided in the sidewall.
  • This aperture mounts a cylindrical fitting 23 and places it in communication with the housing chamber 3 just above the lower edge of the deflector 14 thereby serving as a drain for the chamber.
  • the fitting receives the spray deflected from the interior walls of the chamber and the sloping surface 20 of the deflector and directs it into the attached hose 4 which, in turn directs it back to the spray material supply tank.
  • the aperture 22 extends beyond the lower edge of the deflector 14 so that liquid droplets, which adhere to and run down the outer surface 21 of the deflector, can be removed through hose 4 to prevent drippage of the liquid through aperture 11 and onto the work objects.
  • the lower portion 10 of the housing is split at 25 into two pieces, an upper piece 26, integral with the reduced portion 8, and a lower piece 28 which contains the aperture 22. Both upper piece 26 and the lower piece 28 are fitted onto a lining 30 of the housing and it will be seen from the drawing that they each can be slidably separated from the other. Separation of the lower piece 28 from the remainder of the housing enables one to remove and replace the deflector 14. By simply sliding the spacer ring 15 out of the then open end of the lower piece 28, the deflector is free to be removed. Thus, it is possible to replace deflectors which have been damaged or to change deflectors that give an undesirable spray pattern, without replacing the entire unit.
  • the nozzle 1 When the sprayer is assembled, the nozzle 1 is located within the bearing 9 of the housing and is carefully adjusted in position by means of a thumbscrew 24 which extends through the upper portion 8 of the housing and the bearing member 9 to firmly clamp the nozzle in place.
  • the nozzle is positioned with its discharge orifice 5 located a fixed distance from the orifice 18 of the deflector which serves to divide the spray issuing from the nozzle.
  • the spray from the primary nozzle 1 would ordinarily provide a circular spray pattern over a large diameter X if the adapter housing of the present invention were not provided.
  • the housing limits the spray at the same distance to a pattern with a small diameter y.
  • the adjustment of the nozzle position with respect to the deflector determines the percentage of the spray permitted to pass through the housing; as the nozzle is moved closer to the deflector a greater percentage is emitted, and as the nozzle is moved further away from the deflector a smaller percentage will be discharged from the housing.
  • the spray which does not pass through the orifice 18 is deflected either on the sloping surface 20 of the deflector or on the inner cylindrical surface of the housing and is eventually directed through the aperture 22 in the lower sidewall of the housing to be returned to the spray supply tank.
  • the pressure within the chamber 3 will normally build up to some level above atmospheric since the spray in the nozzle will be under a relatively high pressure which factor aids in forcing the unused spray back into the return line 4.
  • a standard spray nozzle was used and was positioned with its jet opening l iinches from a deflector orifice of three-eighths inches diameter. With this arrangement, 90 percent of the spray was deflected back to the supply tank and only percent of the spray was utilized.
  • the spray nozzle of the present invention provides a simple and rapidly adjustable structure for providing a low volume and uniform pattern of spray without requiring small passageways or discharge orifices subject to clogging.
  • An adapter for a spray nozzle for providing a low volume spray comprising a tubular housing enc0m passing said nozzle including an inner member of rigid material and a pair of outer members fitted about said inner member in abutting relationship, one of said outer members having a spray opening at one end thereof positioned in alignment with said nozzle, said one of said outer members also including an inwardly projecting shoulder, a deflector received upon said shoulder comprising a thin deflecting wall inclined radially inwardly toward said nozzle, said deflector being positioned about said spray opening for deflecting a portion of said spray to the interior of said housing adjacent said shoulder and being provided with an orifice at the apex of its deflecting surface for permitting the remainder of said spray to pass through said spray opening and out of said adapter, means for removably retaining said deflector upon said shoulder, and means for draining the deflected spray from said housing.
  • said means for draining housing deflected spray includes an outlet position said one of said thumbscrew being provided with a discharge opening therein extending radially through the wall of said outer member in alignment clamp said shoulder, said outlet conduit being connected for fluid com munication with said discharge opening whereby said deflected spray which is present on both side of said deflecting wall of the deflector will be directed to said fluid conduit and will not be permitted to collect within said housing or to drip from the edges of said spray opening.

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  • Nozzles (AREA)
US780508A 1968-12-02 1968-12-02 Spray nozzle Expired - Lifetime US3583634A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US780508A US3583634A (en) 1968-12-02 1968-12-02 Spray nozzle
GB57812/69A GB1262795A (en) 1968-12-02 1969-11-26 An adapter for a spray nozzle
NL6917896A NL6917896A (fr) 1968-12-02 1969-11-28
DE6946748U DE6946748U (de) 1968-12-02 1969-12-02 Spruehduesenvorrichtung
DE19691960510 DE1960510A1 (de) 1968-12-02 1969-12-02 Spruehduesenvorrichtung
FR6941517A FR2025045A1 (fr) 1968-12-02 1969-12-02
JP9627569A JPS4744083B1 (fr) 1968-12-02 1969-12-02

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US780508A US3583634A (en) 1968-12-02 1968-12-02 Spray nozzle

Publications (1)

Publication Number Publication Date
US3583634A true US3583634A (en) 1971-06-08

Family

ID=25119783

Family Applications (1)

Application Number Title Priority Date Filing Date
US780508A Expired - Lifetime US3583634A (en) 1968-12-02 1968-12-02 Spray nozzle

Country Status (6)

Country Link
US (1) US3583634A (fr)
JP (1) JPS4744083B1 (fr)
DE (2) DE1960510A1 (fr)
FR (1) FR2025045A1 (fr)
GB (1) GB1262795A (fr)
NL (1) NL6917896A (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3716189A (en) * 1969-10-14 1973-02-13 Heimo Geraetebau Gmbh Method of an apparatus for atomizing liquid droplets in the sprayjet of a spraying device
US4629119A (en) * 1984-01-26 1986-12-16 Nordson Corporation Electrostatic isolation apparatus and method
US5255846A (en) * 1992-09-21 1993-10-26 Ortega Raymond A Spray control apparatus for use with texturizer machines
US5536315A (en) * 1994-07-01 1996-07-16 Fanuc Robotics North America, Inc. Method and system for spraying material in a spray pattern having a variable form and collecting excess material
US6056208A (en) * 1997-09-18 2000-05-02 Sez Semiconductor-Equipment Zubehor Fur Die Halbleiterfertigung Ag Apparatus for preventing dripping from conduit openings
US6427747B1 (en) * 1997-06-16 2002-08-06 Canon Kabushiki Kaisha Apparatus and method of separating sample and substrate fabrication method
US20050023377A1 (en) * 1999-12-10 2005-02-03 Sankyo Rayjac Co., Ltd. Nozzle and aspirator with nozzle
EP1949968A1 (fr) * 2007-01-29 2008-07-30 Millipore Corporation Dispositif pour la pulvérisation d'un réactif pour une analyse microbiologique rapide
US20100200108A1 (en) * 2007-06-14 2010-08-12 Akzo Nobel Coatings International B.V. Paint dispensing nozzle arrangement
EP3047914A1 (fr) * 2015-01-20 2016-07-27 Sturm Maschinen- & Anlagenbau GmbH Installation et procédé de revêtement métallique d'une pièce
CN109926254A (zh) * 2019-03-21 2019-06-25 绍兴上虞九阳风机有限公司 一种喷塑房
US11097299B2 (en) * 2018-02-06 2021-08-24 Hermes Epitek Corp. Slurry spraying mask and slurry spraying jig

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE430128B (sv) * 1978-04-11 1983-10-24 Atlas Copco Ab Beroringsskydd vid hogtryckspistol
DE3130730C2 (de) * 1981-02-12 1983-07-14 Philips Patentverwaltung Gmbh, 2000 Hamburg Vorrichtung zum Lackieren von technischen Gegenständen
DE3934740A1 (de) * 1989-10-18 1991-04-25 Fath Bruno Vorrichtung fuer die spruehdesinfektion von zahnaerztlichen handinstrumenten an behandlungseinheiten
JP4925520B2 (ja) * 2001-04-27 2012-04-25 独立行政法人産業技術総合研究所 複合構造物形成用ノズル、複合構造物形成装置および複合構造物形成方法
JP3980345B2 (ja) * 2001-12-13 2007-09-26 株式会社藤森技術研究所 液体微粒子発生用ノズル
JP4986514B2 (ja) * 2006-06-29 2012-07-25 小林製薬株式会社 噴霧器用フード及び噴霧器
JP2011056423A (ja) * 2009-09-10 2011-03-24 Minoru Sasaki スプレーの特定領域が成膜に寄与するようにしたスプレーコータ
JP5562612B2 (ja) * 2009-11-05 2014-07-30 ノズルネットワーク株式会社 微細化促進用器具および微細化促進用器具の気液混合ノズル装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1828463A (en) * 1929-12-06 1931-10-20 Morgan J Hammers Means for restricting atomized fluid discharge

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1828463A (en) * 1929-12-06 1931-10-20 Morgan J Hammers Means for restricting atomized fluid discharge

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3716189A (en) * 1969-10-14 1973-02-13 Heimo Geraetebau Gmbh Method of an apparatus for atomizing liquid droplets in the sprayjet of a spraying device
US4629119A (en) * 1984-01-26 1986-12-16 Nordson Corporation Electrostatic isolation apparatus and method
US5255846A (en) * 1992-09-21 1993-10-26 Ortega Raymond A Spray control apparatus for use with texturizer machines
US5536315A (en) * 1994-07-01 1996-07-16 Fanuc Robotics North America, Inc. Method and system for spraying material in a spray pattern having a variable form and collecting excess material
US6427747B1 (en) * 1997-06-16 2002-08-06 Canon Kabushiki Kaisha Apparatus and method of separating sample and substrate fabrication method
US6056208A (en) * 1997-09-18 2000-05-02 Sez Semiconductor-Equipment Zubehor Fur Die Halbleiterfertigung Ag Apparatus for preventing dripping from conduit openings
US20050023377A1 (en) * 1999-12-10 2005-02-03 Sankyo Rayjac Co., Ltd. Nozzle and aspirator with nozzle
EP1949968A1 (fr) * 2007-01-29 2008-07-30 Millipore Corporation Dispositif pour la pulvérisation d'un réactif pour une analyse microbiologique rapide
US20080179425A1 (en) * 2007-01-29 2008-07-31 Millipore Corporation Device for spraying a reagent for fast microbiological analysis
FR2911801A1 (fr) * 2007-01-29 2008-08-01 Millipore Corp Dispositif de pulverisation d'un reactif pour l'analyse microbiologique rapide
US8852884B2 (en) 2007-01-29 2014-10-07 Emd Millipore Corporation Device for spraying a reagent for fast microbiological analysis
US8794176B2 (en) 2007-01-29 2014-08-05 Emd Millipore Corporation Device for spraying a reagent for fast microbiological analysis
US8846337B2 (en) 2007-01-29 2014-09-30 Emd Millipore Corporation Device for spraying a reagent for fast microbiological analysis
US20100200108A1 (en) * 2007-06-14 2010-08-12 Akzo Nobel Coatings International B.V. Paint dispensing nozzle arrangement
US8863787B2 (en) * 2007-06-14 2014-10-21 Akzo Nobel Coatings International B.V. Paint dispensing nozzle arrangement
EP3047914A1 (fr) * 2015-01-20 2016-07-27 Sturm Maschinen- & Anlagenbau GmbH Installation et procédé de revêtement métallique d'une pièce
WO2016116368A1 (fr) * 2015-01-20 2016-07-28 Sturm Maschinen- & Anlagenbau Gmbh Dispositif et procédé de revêtement métallique d'une pièce
US11097299B2 (en) * 2018-02-06 2021-08-24 Hermes Epitek Corp. Slurry spraying mask and slurry spraying jig
CN109926254A (zh) * 2019-03-21 2019-06-25 绍兴上虞九阳风机有限公司 一种喷塑房
CN109926254B (zh) * 2019-03-21 2021-07-09 绍兴上虞九阳风机有限公司 一种喷塑房

Also Published As

Publication number Publication date
NL6917896A (fr) 1970-06-04
FR2025045A1 (fr) 1970-09-04
JPS4744083B1 (fr) 1972-11-07
GB1262795A (en) 1972-02-09
DE1960510A1 (de) 1970-06-11
DE6946748U (de) 1971-04-08

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