US3235186A - Liquid spraying apparatus - Google Patents

Liquid spraying apparatus Download PDF

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Publication number
US3235186A
US3235186A US336998A US33699864A US3235186A US 3235186 A US3235186 A US 3235186A US 336998 A US336998 A US 336998A US 33699864 A US33699864 A US 33699864A US 3235186 A US3235186 A US 3235186A
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US
United States
Prior art keywords
air
liquid
nozzle
valve
housing
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
US336998A
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English (en)
Inventor
Boyce Guy Baron
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 UK Ltd
Original Assignee
Binks Sames UK Ltd
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 UK Ltd filed Critical Binks Sames UK Ltd
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Publication of US3235186A publication Critical patent/US3235186A/en
Anticipated expiration legal-status Critical
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    • 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
    • B05B7/1236—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 with three or more interdependent valves
    • 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
    • B05B7/0815—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 at least one gas jet intersecting a jet constituted by a liquid or a mixture containing a liquid for controlling the shape of the latter
    • 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
    • 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
    • B05B7/1245—A gas valve being opened before a liquid valve

Definitions

  • This invention relates to liquid spraying apparatus of the kind comprising a housing, a liquid inlet, an air inlet, a passage in the housing connecting said liquid inlet to a liquid nozzle, liquid valve means for controlling the flow of liquid through said passage, further passages connecting said air inlet to a primary air nozzle adjacent the liquid nozzle and to a secondary air nozzle which is spaced from the liquid nozzle and which is, in use, adapted to direct a jet of air towards the stream of tinely divided liquid issuing from the Aliquid nozzle for the purpose of forming said stream to a tlattened configuration and air valve means for controlling the flow of air through said further passages.
  • liquid valve means and the air valve means are provided with a common operating member and the arrangement is such that the operating member can be moved to increase the supply of air to said secondary nozzle without substantial alteration of the supply of air to the primary air nozzle and simultaneously to increase the supply of liquid to the liquid nozzle.
  • FIGURE l shows, in cross-section, one example of liquid spraying apparatus in accordance with the invention
  • FlGURES 2, 3, 4 and 5 are fragmentary sections on the lines 2 2, 3 3, 4--4 and 5-5 respectively in FIG- URE l.
  • the apparatus comprises a body 19 having an air inlet 11 and a liquid inlet 12.
  • the liquid inlet 12 leads into a liquid chamber 13 which terminates in a liquid nozzle 14.
  • the iiow of liquid from the nozzle 14 is controlled at the nozzle ⁇ by liquid valve means comprising an elongated needle 15 which slides through a gland 16 at the opposite end of the liquid chamber 13.
  • the needle 11S is secured at its opposite end ⁇ to an adjusting element 17 which is screw-threadedly connected to an actuating element 18 slidably mounted in a bore 19 in a sleeve 3d forming part of the body.
  • the adjusting element 17 is engaged by a spring 20 which is loaded against an abutment 21 in the bore 19, so that the end or" the needle 15 is urged into sealing engagement with the interior of the liquid nozzle 14. ln this closed position of the needle 15, the distance by which the actuating element 1% projects from the body can be adjusted by engaging a suitable tool with a socket 17a in the adjusting element 17 and turning the latter. Access to the socket 17a is gained by removing a plug 22 in the end of the bore 19.
  • the nozzle assembly also provides a primary air nozzle 23 which is of annular form surrounding the liquid nozzle 14.
  • the nozzle assembly is in three parts, a rst part 24 of which provides the liquid nozzle 14E- and is screw-threadedly attached to the body proper.
  • the second nozzle part Z comprises a screw-threaded ring by means of which the third nozzle part 26 is attached to the rst part 243,
  • the third part 26 is shaped sealingly to engage the rst part 24 over two frusto-conical areas so as thereby to provide in the nozzle assembly two annular chambers 27 and 28.
  • the chamber 27 communicates with a bore through which the nose of nozzle part 24 projects to form the aforementioned annular primary air nozzle 23. It is known in the art to provide further primary air nozzles in the form ol narrow bores in the part 26 although these are not shown in the drawings. These further primary air nozzles assist in atomizing the liquid stream issuing from the liquid nozzle.
  • the secondary air nozzles 29 communicate with the annular chamber 28.
  • the supply of air to the primary and secondary air nozzles is controlled by air valve means comprising a pair of valves denoted in the drawing by reference numerals 31 and 32. These valves receive their air supply from a common air chamber 33 which is connected by a passage 34 to the air inlet 11.
  • the valve 31 comprises a closure member 35 having a stem 36 projecting through a gland 37 in the body.
  • the closure member 35 is urged by a spring 38, loaded against a cap 39, into engagement with a seat dal so that the air chamber 33 is normally divided oft from a lirst valve chamber 41.
  • valve 32 comprises closure member l2 (ofY larger area than closure member 35), stem 43, spring 44, cap 4S, gland 46 and second valve chamber 47, As will be evident from FIGURE 2 the stems 36 and 43 are or" different lengths so that the rst valve stern 36 projects from the body lil further than the second valve stem 43.
  • rst and second longitudinal passages 48 and 49 which are connected respectively to the rst and second valve chambers 41, di' by means of cross passages 50, 51.
  • These cross passages 5t?, 51 intersect th-e bore in which the sleeve 3@ is mounted and are seproted therein by a flange 39a on the sleeve 3l).
  • Each of the passages d8, i9 communicates with an annular space 52 formed between the hrst nozzle part 24 and the body lil.
  • the annular space 52 is connected to the annular chamber 28 and thereby to the secondary air nozzles 29 by means of bores 53 in the first nozzle part 24.
  • Also formed in the body is an inclined passage 54 which connects the longitudinal passage 4S 'to another annular space 55 formed between the body 1t) and the first nozzle part
  • the annular space 55 is connected to the annular chamber 27 by further bores Se in the nozzle part 2.4.
  • Each of the passages 48, i9 contains a rod 57, 53 which is longitudinally adjustable to allow its tapered nose to ⁇ form a variable air-how restrictor for air flowing to the space 52.
  • the tlow of air through passage 54 is not aiected by adjustment of the rods 57, 58 as the latter co-act with shoulders in the passages dit, t9 downstream of the passage 5d.
  • the apparatus is completed by a common operating member 52 which is of forked form straddling the body lil and pivotally connected thereto on an axis tl.
  • the needle 1S extends through a hole in the operating member, which is engageable wtih the actuating element 1S and each of the air valve stems 36 and 43.
  • the operating member is initially in engagement with the end of stem 36 but is slightly clear of actuating element 18 and well clear of the end of stern 43.
  • the primary intended use of the apparatus described is as a spray gun for spraying paint and like material.
  • the air inlet 11 is connected, in use, to a supply of compressed air, whilst the liquid irdet 12 is connected to a supply of pressurise-d paint.
  • the control member 59 On actuation of the control member 59 the operator rst feels the effect of the air pressure acting on closure member 35 and spring 38.
  • the valve 31 On moving the control member, therefore, the valve 31 only is opened.
  • air flows into valve chamber 41, and through cross passage Si) to longitudinal passage 48.
  • the air stream from passage ed splits and part of the stream passes through bore 54 to the primary air nozzle 2d whilst a further part (the amount of which is dependent on the adjustment of rod 57) passes to the secondary air nozzle 29.
  • a controlled amount of paint (determined by the setting of the needle l5) leaves the paint nozzle 1.4 and is atomized by air from the primary nozzle 23.
  • air is supplied to the primary nozzle 23 before paint flow is initiated, thereby avoiding the formation of a jet or' paint from the liquid nozzle M.
  • the amount of secondary air flowing in this first configuration can be adjusted by moving the rod 57 between a position in which it seats on the associated shoulder so that the spray is unshaped by secondary air and is therefore conical, to a position in which a restricted amount of secondary air ows to flatten the spray slightly.
  • the operator can displace the control member S9 to a second operating configuration, in which the valve 32 is opened. Additional air now flows to the secondary nozzles 29 through the passage i9 under the control of rod 5S. Simultaneously the needle l5 is displaced further from the liquid nozzle ld so that the amount of paint owing is increased to a maximum.
  • the spray gun described is ot particular advantage in i tasks such as the spraying of vehicle bodies where there are large areas to be painted, such as roofs and doors, as well as narr w strips, such as window frames. Whilst applying paint to larger areas the operator would use the apparatus in the second operating configuration and when painting narrow strips he would use the iirst configuration. Thus the wastage of paint would be minimised whilst change from one conguration to another can be effected in an extremely simple manner. llt will be realised that, in actual use, the two air-low restrictors and the settingy of the liquid valve need not be altered once a desirable setting has been obtained.
  • a liquid spraying apparatus comprising a housing having a liquid inlet, an air inlet, a liquid nozzle, a primary air nozzle for producing a liquid-atomising air stream and a secondary air nozzle for producing a spray-shaping air stream, a needle mounted ⁇ in the body for longitudinal ⁇ movement and spring-loaded into engagement with the interior of the liquid nozzle so as to control the flow of liquid therefrom, la screw threaded adjusting element attached to the needle, an actuating element having a screw thread coacting with that of the adjusting element and projecting from the housing, a first air valve chamber in the housing,
  • passage means connecting said rst air valve chamber to the primary air nozzle, additional passage means connecting said first air valve chamber to the secondary air nozzle, adjustable flow restrictor means for varying the flow of air through said additional passage means, a second air valve chamber in the housing, further passage means connecting said second air valve chamber to the secondary air nozzle, adjustable flow restrictor means for varying the flow of air through said further passage means, first and second air valve closure members disposed respectively in said first and second air valve charnbers, first and second stems connected respectively Ito said closure members, and projecting from the housing, the first stem projecting further than the second stem, first and second springs urging said closure members to closed positions, and a common operating member pivoted to the housing and engageable on initial displacement with the first stem and the actuating element to displace the needle from the liquid nozzle and open the first air valve closure member and, on further displacement, with the second stem to open the second air valve closure member whilst displacing the needle further from the liquid nozzle.
  • a liquid spraying apparatus comprising a housing having a liquid inlet, an air inlet, a liquid nozzle, a primary air nozzle for producing a liquid-atomizing air stream, and a secondary air nozzle for producing a sprayshaping air stream, liquid valve means in the housing operable to increase and decrease the fiow of liquid from said liquid nozzle, a irst air valve in the housing controlling the flow of air from said primary nozzle, means in the housing for permitting a restricted liow of air from said secondary air nozzle when the first air valve is opened, a second air valve in the housing independently controlling the flow of air from said secondary air nozzle and a common operating lever for said air valves and said liquid valve means, said common operating member being disposable in a first operating position in which said liquid valve means and said first air valve are open and a second operating position in which the second air valve is also open.
  • a liquid spraying apparatus comprising a housing having a liquid inlet, an air inlet, a liquid nozzle, a primary air nozzle for producing a liquid atomizing air stream and a secondary air nozzle for producing a spray shaping air stream, liquid valve means in the housing for controlling the fiow of liquid through said .liquid nozzle, first and second air chambers in the housing, first and second air valves mounted respectively in said chambers and each comprising a spring loaded closure member and a stem projecting from the housing, the stem of said first air valve projecting further than the stem of said second air Valve, a common operating member mounted on the body for operating said liquid valve means and engageable with said rst and second air valve stems, passage means connecting said first air valve chamber to said primary air nozzle, additional passage means connecting said first air valve chamber to the secondary air nozzle, and further passage means connecting said second air valve chamber to said secondary air nozzle.
  • a liquid spraying apparatus comprising a housing having a liquid inlet, an air inlet, a liquid nozzle, a primary air nozzle for producing a liquid atomising air stream, and a secondary air nozzle for producing a spray shaping air stream, a longitudinally movable needle mounted in the housing and engageable in the interior with said liquid nozzle to control the flow of liquid therefrom ⁇ a first air valve in the housing controlling the flow of air from said primary air nozzle, means permitting a restricted How of air from said secondary air nozzle when the irst air valve is open, a second air valve in the housing independently controlling the ow of air to said secondary air nozzle, and a common operating member operatively connected to said needle and said rst and second air valves and mounted on the housing so as to be movable between a first operating position in which said needle is displaced from the liquid nozzle and said irst air valve is opened, and a second operating position in which said needle is displaced further from said liquid nozzle and both of said rst
  • a liquid spraying apparatus comprising a housing and a liquid inlet, an air inlet, a liquid nozzle, a primary air nozzle for producing a liquid-atomizing air stream, a secondary air nozzle for producing a spray-shaping air stream, a longitudinally movable needle mounted in the housing and engageable with the interior of said liquid nozzle to control the ow of liquid therefrom, first and second air valve chambers in the housing, first and second air valves mounted respectively in said chambers and each comprising a spring loaded closure member and a stem projecting from the housing, the stern of said rst air valve projecting further than the stem of second air valve, a common operating member mounted on the body and adapted to displace the needle from the liquid nozzle by a distance determined by the displacement of the operating member and engage said rst and second air valve stems, passage means in the housing connecting 6 said first air valve chamber to said primary air nozzle, additional passage means connecting said first air valve chamber to said secondary air nozzle, and -further passage means in the
US336998A 1963-11-20 1964-01-10 Liquid spraying apparatus Expired - Lifetime US3235186A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB45766/63A GB977077A (en) 1963-11-20 1963-11-20 Liquid spraying apparatus

Publications (1)

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US3235186A true US3235186A (en) 1966-02-15

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US336998A Expired - Lifetime US3235186A (en) 1963-11-20 1964-01-10 Liquid spraying apparatus

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US (1) US3235186A (fr)
BE (1) BE643386A (fr)
CH (1) CH434038A (fr)
ES (1) ES304578A1 (fr)
GB (1) GB977077A (fr)
NL (1) NL6411579A (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3339841A (en) * 1965-02-12 1967-09-05 Jr Howard W Beach Electrostatic paint spray gun
US3500666A (en) * 1967-10-09 1970-03-17 Luigi Calcaterra Cloth cleaning device
US4754923A (en) * 1985-08-22 1988-07-05 Iwata Air Compressor Mfg. Co., Ltd. Spray gun with automatic valve opening control means
US4891249A (en) * 1987-05-26 1990-01-02 Acumeter Laboratories, Inc. Method of and apparatus for somewhat-to-highly viscous fluid spraying for fiber or filament generation, controlled droplet generation, and combinations of fiber and droplet generation, intermittent and continuous, and for air-controlling spray deposition
US4982897A (en) * 1986-08-15 1991-01-08 Iwata Air Compressor Mfg. Co., Ltd. Spraying method and apparatus employed therefor
US5718580A (en) * 1995-01-12 1998-02-17 Mcferrin; Dennis Vapor blaster
CN103240206A (zh) * 2012-02-01 2013-08-14 Cj4Dplex有限公司 用于4ｄ效果的水和风的喷射装置及喷射方法
FR2996150A1 (fr) * 2012-10-03 2014-04-04 Thomas Issler Pistolet de nettoyage par de l'air et/ou du liquide pulverise
CN107660163A (zh) * 2015-05-27 2018-02-02 3M创新有限公司 具有辅助开孔的喷嘴组件
US20180169677A1 (en) * 2015-06-26 2018-06-21 Jim Lindsay Ltd. Spray Gun

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3640002A1 (de) * 1986-11-22 1988-05-26 Zinser Textilmaschinen Gmbh Verfahren und vorrichtung zum automatischen gleichzeitigen abziehen von spulen und nachfolgendem gleichzeitigen aufstecken von huelsen auf spindeln einer spinn- oder zwirnmaschine

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1627117A (en) * 1925-03-13 1927-05-03 Spraco Painting Equipment Comp Apparatus or tool for applying coating material
US1779922A (en) * 1927-04-09 1930-10-28 Wayne B Thompson Spray gun
US2626188A (en) * 1947-03-14 1953-01-20 American Brake Shoe Co Spray gun
US2670239A (en) * 1950-06-05 1954-02-23 Electric Sprayit Company Dual purpose spray gun
US2724615A (en) * 1950-10-27 1955-11-22 Glidden Co Spraying device
US2737415A (en) * 1953-01-29 1956-03-06 Elsa Wheeler Nicholson Paint spray gun
US2739843A (en) * 1951-11-16 1956-03-27 Binks Mfg Co Spray coating means
US2780496A (en) * 1952-11-29 1957-02-05 Sherwin Williams Co Multi-component spray gun
US2786716A (en) * 1954-03-29 1957-03-26 Vilbiss Co Spray gun
DE966200C (de) * 1951-08-09 1957-07-11 Bersch & Fratscher G M B H Farbspritzpistole mit pneumatischer Farbventilsteuerung

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1627117A (en) * 1925-03-13 1927-05-03 Spraco Painting Equipment Comp Apparatus or tool for applying coating material
US1779922A (en) * 1927-04-09 1930-10-28 Wayne B Thompson Spray gun
US2626188A (en) * 1947-03-14 1953-01-20 American Brake Shoe Co Spray gun
US2670239A (en) * 1950-06-05 1954-02-23 Electric Sprayit Company Dual purpose spray gun
US2724615A (en) * 1950-10-27 1955-11-22 Glidden Co Spraying device
DE966200C (de) * 1951-08-09 1957-07-11 Bersch & Fratscher G M B H Farbspritzpistole mit pneumatischer Farbventilsteuerung
US2739843A (en) * 1951-11-16 1956-03-27 Binks Mfg Co Spray coating means
US2780496A (en) * 1952-11-29 1957-02-05 Sherwin Williams Co Multi-component spray gun
US2737415A (en) * 1953-01-29 1956-03-06 Elsa Wheeler Nicholson Paint spray gun
US2786716A (en) * 1954-03-29 1957-03-26 Vilbiss Co Spray gun

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3339841A (en) * 1965-02-12 1967-09-05 Jr Howard W Beach Electrostatic paint spray gun
US3500666A (en) * 1967-10-09 1970-03-17 Luigi Calcaterra Cloth cleaning device
US4754923A (en) * 1985-08-22 1988-07-05 Iwata Air Compressor Mfg. Co., Ltd. Spray gun with automatic valve opening control means
US4982897A (en) * 1986-08-15 1991-01-08 Iwata Air Compressor Mfg. Co., Ltd. Spraying method and apparatus employed therefor
US4891249A (en) * 1987-05-26 1990-01-02 Acumeter Laboratories, Inc. Method of and apparatus for somewhat-to-highly viscous fluid spraying for fiber or filament generation, controlled droplet generation, and combinations of fiber and droplet generation, intermittent and continuous, and for air-controlling spray deposition
US5718580A (en) * 1995-01-12 1998-02-17 Mcferrin; Dennis Vapor blaster
CN103240206A (zh) * 2012-02-01 2013-08-14 Cj4Dplex有限公司 用于4ｄ效果的水和风的喷射装置及喷射方法
FR2996150A1 (fr) * 2012-10-03 2014-04-04 Thomas Issler Pistolet de nettoyage par de l'air et/ou du liquide pulverise
WO2014053777A1 (fr) * 2012-10-03 2014-04-10 Zelup Pistolet de nettoyage par de l'air ou d'un mélange air-liquide pulvérisé
CN107660163A (zh) * 2015-05-27 2018-02-02 3M创新有限公司 具有辅助开孔的喷嘴组件
US20180169677A1 (en) * 2015-06-26 2018-06-21 Jim Lindsay Ltd. Spray Gun
US10786824B2 (en) * 2015-06-26 2020-09-29 Jim Lindsay Ltd. Spray gun

Also Published As

Publication number Publication date
ES304578A1 (es) 1964-12-01
GB977077A (en) 1964-12-02
CH434038A (de) 1967-04-15
NL6411579A (fr) 1965-05-21
BE643386A (fr) 1964-05-29

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