WO1995007762A1 - Dispositif de pulverisation de liquide a air comprime - Google Patents

Dispositif de pulverisation de liquide a air comprime Download PDF

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Publication number
WO1995007762A1
WO1995007762A1 PCT/SE1994/000843 SE9400843W WO9507762A1 WO 1995007762 A1 WO1995007762 A1 WO 1995007762A1 SE 9400843 W SE9400843 W SE 9400843W WO 9507762 A1 WO9507762 A1 WO 9507762A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid
container
spraying device
liquid container
conduit
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.)
Ceased
Application number
PCT/SE1994/000843
Other languages
English (en)
Inventor
Michael Andersson
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP94927145A priority Critical patent/EP0719181A1/fr
Priority to AU76685/94A priority patent/AU7668594A/en
Publication of WO1995007762A1 publication Critical patent/WO1995007762A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • 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
    • B05B7/24—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 with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2402—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
    • B05B7/2405—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle
    • B05B7/2424—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle the carried liquid and the main stream of atomising fluid being brought together downstream of the container before discharge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/30—Dip tubes

Definitions

  • Liquid spraying device driven by compressed air
  • the present invention relates to a compressed-air-operated liquid spraying device according to the preamble of the appended claim 1.
  • liquid container accordingly contains paint
  • this field of use will be discussed hereinafter so as to illustrate the invention, although nu ⁇ merous other fields of use would be possible.
  • All types of com ⁇ pressed-air-operated liquid spraying devices are comprised, such as those sucking the liquid through ejector action, those having liquid containers connected to compressed air, those having liquid containers containing compressed air (such as paint spray bottles) and the like.
  • the devices already known of the type defined in the intro ⁇ duction have the disadvantage that the spraying device may not be inclined too much when for example paint is sprayed without an in ⁇ correct paint and air mixture with a lower quality of the surface layer painted as a result.
  • the object of the present invention is to provide a device of the type defined in the introduction, which finds a remedy to the incon ⁇ veniences mentioned above of such devices already known.
  • this volume is very small, so that in practise no such spraying may be carried out.
  • said driving or operation through com ⁇ pressed air will on the other end accomplish filling of also the inner, smaller liquid container, which may be called an auxiliary liquid container, and this will continuously be filled with liquid, so that this constitutes a buffer, when the liquid spray gun is inclined away from said normal position and by that so much liquid that corre ⁇ sponds to the total volume of the inner liquid container and the conduit may be sprayed in such an inclined position without any additional mixing of air thereinto.
  • an inner fender of a car may by that be lacquered in a state mounted on the car without lowering the quality of the surface layer obtained.
  • the inner, smaller liquid container is replaceably arranged in the larger liquid container for enabling changes to inner liquid containers having different volumes for adaption to different conditions of use, so that for example this volume may be increased should the liquid spray ⁇ ing device during a longer period of time be used for spraying ob- jects requiring a considerable inclination of the liquid spray gun away from said normal position.
  • Fig.1 is a sectioned view of the device according to the invention in the normal position
  • Fig. 2 is a sectioned view enlarged with respect to Fig. 1 and of a part containing the liquid containers of the device according to Fig. 1 turned upside down with respect to the position in Fig. 1 , and
  • Fig. 3 shows a view corresponding to Fig. 2 of a part of a conven- tional prior art device turned upside down.
  • the liquid spray gun 1 shown i Fig. 1 is intended to be hand-oper ⁇ ated and has for this sake a handle 2. It has also a liquid container 3, which is intended to receive the liquid, for example paint, to be sprayed by the device.
  • a conduit 4 for supply of compressed air schematically indicated is connected to the handle and extends in ⁇ side the handle to a valve 6 controllable through operation of a rocking lever 5 by the hand gripping around the handle 2.
  • the con ⁇ duit 4 continues on the other side of the valve 6 through a conduit portion 7 to a nozzle 8.
  • a suction conduit 9 does also emerge into the valve 6, which is an ejector valve, said suction conduit being led into the liquid container 3 and the other end 10 of which emerges into a smaller liquid container 11 enclosed inside the liquid container 3.
  • This smaller liquid container 11 communi- cates through an opening 13 here covered by a filter 12 with the outer, larger liquid container 3.
  • the filter 12 is arranged to remove possible undesired particles contained in the liquid container 3 from the liquid before it is sprayed out through the nozzle 8.
  • the opening 13 is in the normal position shown in Fig. 1 directed substantially downwardly, which means that it will be directed up ⁇ wardly when the device is turned upside down, and it is located in the region of a lower angle or a corner 15 of the liquid container 3, which is formed by a transition between a bottom 16 and a wall 17 of this container.
  • the portion 18 of the inner container 11 located closest to said opening 13 is provided with a cross-section reduced with respect to container portions following thereupon, so that said opening may be arranged in the angle of the bottom region of the liquid container 3, which would not be possible with an inner con ⁇ tainer 11 inclined in a way shown in Fig. 1 should the cross-section thereof not be reduced in the opening region. Suction of liquid is in this way possible also when the liquid container 3 is almost empty.
  • the inner liquid container 11 is advantageously arranged remov ⁇ able from the end 10 of the suction conduit 9, so that it after open- ing the liquid container 3 may be removed and changed for an inner liquid container having a different volume for adaption of this vol ⁇ ume to different fields of use of the liquid spraying device.
  • the function of the liquid spraying device according to the invention is as follows: When the ejector valve 6 is opened through the rock ⁇ ing lever 5 compressed air will flow therethrough and through ejector action draw liquid through the suction conduit 9, so that an air and liquid mixture so produced advances in the conduit portion 7 to the nozzle 8, through which it is finely divided sprayed onto the surface to be covered by the liquid, for instance a car detail to be lacquered.
  • the ejector valve 6 When there is so much liquid in the liquid container 3 as illustrated in Fig. 1 the smaller liquid container 11 will naturally al ⁇ ways be filled, but also in cases of considerably less liquid in the liquid container 3, i.e. when a part of the inner liquid container 11 is in the normal position shown in Fig.
  • the inner liquid container 11 and the suc ⁇ tion conduit 9 will continuously be filled thanks to the ejector action produced by leading compressed air through the valve 6.
  • the suction conduit 9 and the inner liquid container 11 will always be filled with liquid as long as the liquid container 3 has not run out of liquid.
  • inclination of the liquid irrespectively of the location of the opening 13, i.e. even if this gets located in a space (see the air room 19 in Fig.
  • Fig. 3 It is illustrated in Fig. 3 what is happening when the conventional device of this type is turned upside down. It is necessary that the suction conduit 9' is inclined close to the bottom 16' of the con ⁇ tainer in order to make it possible for the liquid spraying device to reach the major part of the liquid contained in the liquid container 3' in the normal position. As a consequence of this, the suction con- duit 9' will in the position shown in Fig. 3 open into an air room 19', so that the suction conduit 9' will immediately be filled by air when spraying through the nozzle.
  • the end of the suction conduit 9' could in such an already known device be arranged more far away from the bottom 16' of the container so as to enable a certain degree of spraying when the device is turned upside down, but this would mean that great amounts of liquid would remain in the container 3' and could't be sprayed out in the normal position.
  • the present in ⁇ vention enables contrary thereto spraying of liquid in the normal position according to Fig. 1 of the liquid spraying device until nearly the "last drop" as well as spraying in the upside down position or in a position with the device inclined in another degree from the nor ⁇ mal position.
  • the invention is not in any way restricted to devices having compressed-air-operation by ejector action according to the embodiment described above, but it is well applicable to other types of compressed-air-operated liquid spraying devices.
  • air in the claims has to be very broadly inter- preted and comprises also other gas mixtures than that in conven ⁇ tional air and also pure gases.
  • liquid container in said normal position is located below the nozzle, but it has not neces ⁇ sarily to be located directly below the nozzle.

Landscapes

  • Nozzles (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)

Abstract

Un dispositif de pulvérisation de liquide à air comprimé comprend un récipient (3) de liquide, un conduit (9) plongé dans le récipient de liquide par une de ses extrémités et adapté pour conduire le liquide dudit récipient à une buse (8) sous l'effet de l'air comprimé. Une extrémité (10) dudit conduit est plongée dans un récipient (11) de liquide plus petit contenu dans ledit récipient (3) de liquide, lequel présente une ouverture (13) par laquelle le conduit communique avec le récipient plus grand (3) de liquide proprement dit, et est agencé pour faire office de tampon par le fait que, comme le conduit, il est agencé pour être rempli de liquide par ladite ouverture et ainsi fournir la quantité de liquide contenue pour une pulvérisation, lorsque le dispositif de pulvérisation de liquide est incliné à l'opposé d'une position normale dans laquelle le grand récipient de liquide se trouve sensiblement sous la buse.
PCT/SE1994/000843 1993-09-13 1994-09-12 Dispositif de pulverisation de liquide a air comprime Ceased WO1995007762A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP94927145A EP0719181A1 (fr) 1993-09-13 1994-09-12 Dispositif de pulverisation de liquide a air comprime
AU76685/94A AU7668594A (en) 1993-09-13 1994-09-12 Liquid spraying device driven by compressed air

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9302953-6 1993-09-13
SE9302953A SE9302953L (sv) 1993-09-13 1993-09-13 Tryckluftsdriven vätskespruta med vätskebehållare

Publications (1)

Publication Number Publication Date
WO1995007762A1 true WO1995007762A1 (fr) 1995-03-23

Family

ID=20391059

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1994/000843 Ceased WO1995007762A1 (fr) 1993-09-13 1994-09-12 Dispositif de pulverisation de liquide a air comprime

Country Status (4)

Country Link
EP (1) EP0719181A1 (fr)
AU (1) AU7668594A (fr)
SE (1) SE9302953L (fr)
WO (1) WO1995007762A1 (fr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005032728A3 (fr) * 2003-10-01 2005-05-26 Harry Debler Dispositif pour deverser des liquides hors d'un recipient
US7086549B2 (en) 2004-01-16 2006-08-08 Illinois Tool Works Inc. Fluid supply assembly
US7165732B2 (en) 2004-01-16 2007-01-23 Illinois Tool Works Inc. Adapter assembly for a fluid supply assembly
US7263893B2 (en) 2005-01-31 2007-09-04 Illinois Tool Works Inc. Fluid supply assembly with measuring guide
US7353964B2 (en) 2004-06-10 2008-04-08 Illinois Tool Works Inc. Fluid supply assembly
US7354074B2 (en) 2004-06-03 2008-04-08 Illinois Tool Works Inc. Adapter assembly for a fluid supply assembly
US7380680B2 (en) 2004-01-16 2008-06-03 Illinois Tool Works Inc. Fluid supply assembly
WO2011034370A3 (fr) * 2009-09-18 2011-08-25 Wui Sung Soo Dispositif de pulvérisation de volume ultra-réduit
US8033413B2 (en) 2006-06-20 2011-10-11 Saint-Gobain Abrastives, Inc. Liquid supply assembly
US8127963B2 (en) 2004-12-16 2012-03-06 Saint-Gobain Abrasives, Inc. Liquid container system for a spray gun
US8944351B2 (en) 2011-05-06 2015-02-03 Saint-Gobain Abrasives, Inc. Paint cup assembly with an outlet valve
US9586220B2 (en) 2011-06-30 2017-03-07 Saint-Gobain Abrasives, Inc. Paint cup assembly
US10882064B2 (en) 2011-12-30 2021-01-05 Saint-Gobain Abrasives, Inc./Saint-Gobain Abrasifs Convertible paint cup assembly with air inlet valve
US11040360B2 (en) 2006-06-20 2021-06-22 Saint-Gobain Abrasives, Inc. Liquid supply assembly

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0211695A1 (fr) * 1985-08-23 1987-02-25 Colin Edmund Etherton Dispositifs pulvérisateurs pour peintures
EP0285040A2 (fr) * 1987-04-01 1988-10-05 KAJ CHEMIETECHNIK GMBH & CO KG Flacon de pulvérisation pour liquide de nettoyage
EP0418032A2 (fr) * 1989-09-11 1991-03-20 Minnesota Mining And Manufacturing Company Pistolet de pulvérisation à reservoir jettable

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0211695A1 (fr) * 1985-08-23 1987-02-25 Colin Edmund Etherton Dispositifs pulvérisateurs pour peintures
EP0285040A2 (fr) * 1987-04-01 1988-10-05 KAJ CHEMIETECHNIK GMBH & CO KG Flacon de pulvérisation pour liquide de nettoyage
EP0418032A2 (fr) * 1989-09-11 1991-03-20 Minnesota Mining And Manufacturing Company Pistolet de pulvérisation à reservoir jettable

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005032728A3 (fr) * 2003-10-01 2005-05-26 Harry Debler Dispositif pour deverser des liquides hors d'un recipient
US7565983B2 (en) 2004-01-16 2009-07-28 Illinois Tool Works Inc. Fluid supply assembly
US7086549B2 (en) 2004-01-16 2006-08-08 Illinois Tool Works Inc. Fluid supply assembly
US7165732B2 (en) 2004-01-16 2007-01-23 Illinois Tool Works Inc. Adapter assembly for a fluid supply assembly
US7344040B2 (en) 2004-01-16 2008-03-18 Illinois Tool Works Inc. Fluid supply assembly
US7625016B2 (en) 2004-01-16 2009-12-01 Illinois Tool Works Inc. Adapter assembly for a fluid supply assembly
US7380680B2 (en) 2004-01-16 2008-06-03 Illinois Tool Works Inc. Fluid supply assembly
US7354074B2 (en) 2004-06-03 2008-04-08 Illinois Tool Works Inc. Adapter assembly for a fluid supply assembly
US7353964B2 (en) 2004-06-10 2008-04-08 Illinois Tool Works Inc. Fluid supply assembly
US9162240B2 (en) 2004-12-16 2015-10-20 Saint-Gobain Abrasives, Inc./Saint-Gobain Abrasie Liquid container system for a spray gun
US8127963B2 (en) 2004-12-16 2012-03-06 Saint-Gobain Abrasives, Inc. Liquid container system for a spray gun
US7350418B2 (en) 2005-01-31 2008-04-01 Illinois Tool Works, Inc. Fluid supply assembly with measuring guide
US7263893B2 (en) 2005-01-31 2007-09-04 Illinois Tool Works Inc. Fluid supply assembly with measuring guide
US10035156B2 (en) 2006-06-20 2018-07-31 Saint-Gobain Abrasives, Inc. Liquid supply assembly
US12064783B2 (en) 2006-06-20 2024-08-20 Saint-Gobain Abrasives, Inc. Liquid supply assembly
US8033413B2 (en) 2006-06-20 2011-10-11 Saint-Gobain Abrastives, Inc. Liquid supply assembly
US11679399B2 (en) 2006-06-20 2023-06-20 Saint-Gobain Abrasives, Inc. Liquid supply assembly
US11548018B1 (en) 2006-06-20 2023-01-10 Saint-Gobain Abrasives, Inc. Liquid supply assembly
US11040360B2 (en) 2006-06-20 2021-06-22 Saint-Gobain Abrasives, Inc. Liquid supply assembly
CN102573455A (zh) * 2009-09-18 2012-07-11 魏圣洙 超微量喷射装置
CN102573455B (zh) * 2009-09-18 2014-04-02 李璟雨 超微量喷射装置
WO2011034370A3 (fr) * 2009-09-18 2011-08-25 Wui Sung Soo Dispositif de pulvérisation de volume ultra-réduit
US9335198B2 (en) 2011-05-06 2016-05-10 Saint-Gobain Abrasives, Inc. Method of using a paint cup assembly
US8998018B2 (en) 2011-05-06 2015-04-07 Saint-Gobain Abrasives, Inc. Paint cup assembly with an extended ring
US8944351B2 (en) 2011-05-06 2015-02-03 Saint-Gobain Abrasives, Inc. Paint cup assembly with an outlet valve
US9586220B2 (en) 2011-06-30 2017-03-07 Saint-Gobain Abrasives, Inc. Paint cup assembly
US10882064B2 (en) 2011-12-30 2021-01-05 Saint-Gobain Abrasives, Inc./Saint-Gobain Abrasifs Convertible paint cup assembly with air inlet valve

Also Published As

Publication number Publication date
SE501454C2 (sv) 1995-02-20
AU7668594A (en) 1995-04-03
SE9302953D0 (sv) 1993-09-13
SE9302953L (sv) 1995-02-20
EP0719181A1 (fr) 1996-07-03

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