WO2010080365A1 - Tooless needle change spray gun - Google Patents

Tooless needle change spray gun Download PDF

Info

Publication number
WO2010080365A1
WO2010080365A1 PCT/US2009/067911 US2009067911W WO2010080365A1 WO 2010080365 A1 WO2010080365 A1 WO 2010080365A1 US 2009067911 W US2009067911 W US 2009067911W WO 2010080365 A1 WO2010080365 A1 WO 2010080365A1
Authority
WO
WIPO (PCT)
Prior art keywords
trigger
slide
pin
needle
spray gun
Prior art date
Application number
PCT/US2009/067911
Other languages
French (fr)
Inventor
Daniel R. Johnson
Original Assignee
Graco Minnesota 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
Application filed by Graco Minnesota Inc. filed Critical Graco Minnesota Inc.
Priority to US13/140,311 priority Critical patent/US8789770B2/en
Priority to AU2009335963A priority patent/AU2009335963B2/en
Priority to EP09796188.2A priority patent/EP2340128B1/en
Priority to CN200980146083.2A priority patent/CN102215981B/en
Publication of WO2010080365A1 publication Critical patent/WO2010080365A1/en

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
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/002—Manually-actuated controlling means, e.g. push buttons, levers or triggers
    • B05B12/0022—Manually-actuated controlling means, e.g. push buttons, levers or triggers associated with means for restricting their movement
    • B05B12/0024—Manually-actuated controlling means, e.g. push buttons, levers or triggers associated with means for restricting their movement to a single position
    • B05B12/0026—Manually-actuated controlling means, e.g. push buttons, levers or triggers associated with means for restricting their movement to a single position to inhibit delivery
    • 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
    • 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
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
    • 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
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/01—Spray pistols, discharge devices

Definitions

  • the fluid nozzle has been knurled to provide for effortless removal.
  • the construction of this gun consists of a slide pin, trigger, needle and fluid nozzle.
  • the trigger has keyhole shaped features that interact with the diameter of the cross-action slide-pin.
  • the larger diameter of the slide-pin is positioned in the larger diameter of the trigger keyhole feature.
  • the smaller diameter of the slide-pin allows the smaller diameter of the trigger keyhole feature to drop down, thereby disengaging the actuation of the fluid needle.
  • This assembly entirely eliminates the possibility of fluids contaminating air passages and seals. While the industry standard prior art designs almost ensure this contamination. Knurling the nozzle of this assembly will allow users to assemble this component without tools. This design completely eliminates any need to remove the trigger or use any tools for cleaning or change of the needle and nozzle.
  • Figure 1 shows an exploded view of the front end of a spray gun utilizing the instant invention.
  • Figure 2a shows the trigger slide in the needle removal position.
  • Figure 2b shows the trigger slide in the spray position.
  • Figure 3 shows the trigger slide in the needle removal position.
  • Figure 4 shows the trigger slide in the spray position.
  • this gun 10 consists of a trigger slide pin 12, trigger 14, needle 16, fluid nozzle 18 and air cap 20.
  • the trigger 14 has keyhole shaped apertures 14a that interact with the diameter of the cross-action slide-pin 12.
  • the larger diameter 12a of the slide-pin 12 is positioned in the larger diameter of the trigger keyhole aperture 14a ( Figures 2b and 4).
  • the smaller diameter 12b of the slide-pin 12 allows the smaller diameter of the trigger keyhole aperture 14a to drop down, thereby disengaging the actuation of the fluid needle 16

Landscapes

  • Nozzles (AREA)

Abstract

A slide pin assembly is introduced in HVLP and other spray guns allowing the needle/trigger actuation to be engaged and disengaged. Furthermore, the fluid nozzle is knurled to provide for effortless removal. The construction of this gun consists of a slide pin, trigger, needle and fluid nozzle. The trigger has keyhole apertures that interact with the diameter of the cross-action slide-pin.

Description

TOOLESS NEEDLE CHANGE SPRAY GUN
TECHNICAL FIELD
This application claims the benefit of US Application serial number 61/138,769, filed December 18, 2008, the contents of which are hereby incorporated by reference.
BACKGROUND ART
Contractors using an HVLP turbine spray gun are constantly changing their fluid needles and nozzles out of the gun.
DISCLOSURE OE THE INVENTION
Due to the high frequency of change out in HVLP and other spray guns, users need a simple, tool-less way to change their fluid needles and nozzles out of the gun without risking air passage and seal contamination. To accomplish this, a slide pin assembly is introduced allowing the needle/trigger actuation to be engaged and disengaged.
Furthermore, the fluid nozzle has been knurled to provide for effortless removal.
The construction of this gun consists of a slide pin, trigger, needle and fluid nozzle. The trigger has keyhole shaped features that interact with the diameter of the cross-action slide-pin. When the slide pin is in the spray position, the larger diameter of the slide-pin is positioned in the larger diameter of the trigger keyhole feature. When the slide-pin is pushed perpendicular to the orientation of the gun, to the removal position, the smaller diameter of the slide-pin allows the smaller diameter of the trigger keyhole feature to drop down, thereby disengaging the actuation of the fluid needle.
This assembly entirely eliminates the possibility of fluids contaminating air passages and seals. While the industry standard prior art designs almost ensure this contamination. Knurling the nozzle of this assembly will allow users to assemble this component without tools. This design completely eliminates any need to remove the trigger or use any tools for cleaning or change of the needle and nozzle.
These and other objects and advantages of the invention will appear more fully from the following description made in conjunction with the accompanying drawings wherein like reference characters refer to the same or similar parts throughout the several views.
BRIEF DESCRIPTION QF DRAWINGS
Figure 1 shows an exploded view of the front end of a spray gun utilizing the instant invention.
Figure 2a shows the trigger slide in the needle removal position.
Figure 2b shows the trigger slide in the spray position.
Figure 3 shows the trigger slide in the needle removal position. Figure 4 shows the trigger slide in the spray position.
BEST MODE FOR CARRYING OUT THE INVENTION
The construction of this gun 10 consists of a trigger slide pin 12, trigger 14, needle 16, fluid nozzle 18 and air cap 20. The trigger 14 has keyhole shaped apertures 14a that interact with the diameter of the cross-action slide-pin 12. When the slide pin 12 is in the spray position, the larger diameter 12a of the slide-pin 12 is positioned in the larger diameter of the trigger keyhole aperture 14a (Figures 2b and 4). When the slide-pin 12 is pushed perpendicular to the orientation of the gun 10, to the removal position, the smaller diameter 12b of the slide-pin 12 allows the smaller diameter of the trigger keyhole aperture 14a to drop down, thereby disengaging the actuation of the fluid needle 16
(Figures 2a and 3).
Knurling the nozzle 18 of this assembly will allow users to assemble this component without tools. This design completely eliminates any need to remove the trigger 14 or use any tools for cleaning or change of the needle 16 and nozzle 18.
It is contemplated that various changes and modifications may be made to the spray gun without departing from the spirit and scope of the invention as defined by the following claims.

Claims

1. In a spray gun having a trigger, a needle and a fluid nozzle, the improvement comprising;
at least one keyhole shaped feature in said trigger, said keyhole feature comprising a larger diameter portion and a smaller diameter portion; and
a slide-pin for releasably engaging said trigger and said needle and moveable between a spray position and a removal position, said slide-pin having a larger diameter portion and a reduced diameter portion whereby when said slide-pin is in said spray position, said larger diameter of said slide-pin is positioned in said larger diameter of said trigger keyhole feature and when said slide-pin is pushed perpendicular to said needle to said removal position, said smaller diameter of said slide-pin allows said smaller diameter of said trigger keyhole feature to drop down, thereby disengaging the actuation of said fluid needle.
2. The spray gun of claim 1 wherein said fluid nozzle is knurled.
PCT/US2009/067911 2008-12-18 2009-12-14 Tooless needle change spray gun WO2010080365A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US13/140,311 US8789770B2 (en) 2008-12-18 2009-12-14 Tooless needle change spray gun
AU2009335963A AU2009335963B2 (en) 2008-12-18 2009-12-14 Tooless needle change spray gun
EP09796188.2A EP2340128B1 (en) 2008-12-18 2009-12-14 Tooless needle change spray gun
CN200980146083.2A CN102215981B (en) 2008-12-18 2009-12-14 Tooless needle change spray gun

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13876908P 2008-12-18 2008-12-18
US61/138,769 2008-12-18

Publications (1)

Publication Number Publication Date
WO2010080365A1 true WO2010080365A1 (en) 2010-07-15

Family

ID=41682807

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2009/067911 WO2010080365A1 (en) 2008-12-18 2009-12-14 Tooless needle change spray gun

Country Status (6)

Country Link
US (1) US8789770B2 (en)
EP (1) EP2340128B1 (en)
CN (1) CN102215981B (en)
AU (1) AU2009335963B2 (en)
TW (1) TWI465293B (en)
WO (1) WO2010080365A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9192950B2 (en) 2009-11-20 2015-11-24 Wagner Spray Tech Corporation Sprayer for a fluid delivery system
EP3061530A1 (en) 2015-02-26 2016-08-31 Anest Iwata Europe Srl Spray gun
US10940498B2 (en) 2017-09-14 2021-03-09 Wager Spray Tech Corporation Airless spray gun with improved trigger assembly

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9969412B2 (en) 2013-07-13 2018-05-15 Mcclellan Butte, Llc Expedition carts and associated methods
USD772380S1 (en) * 2015-08-12 2016-11-22 Chapin Manufacturing, Inc. Hose end sprayer
US10589303B2 (en) 2018-04-01 2020-03-17 Graco Minnesota Inc. Spray gun and components for spraying paints and other coatings
FR3096590B1 (en) * 2019-05-27 2021-09-17 Exel Ind Applicator gun comprising a trigger coupling member having a triggered configuration

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3459374A (en) * 1965-07-07 1969-08-05 Ransburg Electro Coating Corp Electrostatic coating apparatus
US3913844A (en) * 1974-03-13 1975-10-21 Graco Inc Safety spray gun trigger
EP0572237A1 (en) * 1992-05-27 1993-12-01 Ransburg Corporation Spray gun with dual mode trigger

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3380705A (en) 1965-06-28 1968-04-30 Binks Mfg Co Spray gun
US3670967A (en) 1971-03-11 1972-06-20 Graco Inc Sanitary spray gun
US3780953A (en) 1972-01-21 1973-12-25 J Malec Airless spray gun
US4676437A (en) 1985-07-17 1987-06-30 Insta-Foam Products, Inc. Low cost mixing and dispensing gun for reactive chemical products
US4993642A (en) 1987-09-28 1991-02-19 Accuspray, Inc. Paint spray gun
US5609302A (en) 1995-04-19 1997-03-11 Smith; William C. Removable spray gun fluid flow assembly
US5699967A (en) 1995-08-25 1997-12-23 Campbell Hausfeld/Scott Fetzer Co. Airless spray gun diffuser
US5829680A (en) 1997-06-09 1998-11-03 Perret, Jr.; Robert J. Toolless airless spray head
US6152386A (en) * 1998-11-06 2000-11-28 Nordson Corporation Handgun and hose assembly for dispensing liquids
US7762476B2 (en) * 2002-08-19 2010-07-27 Illinois Tool Works Inc. Spray gun with improved atomization
US6808122B2 (en) * 2002-08-19 2004-10-26 Illinois Tool Works, Inc. Spray gun with improved pre-atomization fluid mixing and breakup
CN201015754Y (en) * 2007-03-29 2008-02-06 海峰机械工业股份有限公司 Sponging gun with multiple spraying painting angles
US8439281B2 (en) * 2008-08-15 2013-05-14 Hyde Tools, Inc. Modular coatings sprayer
US9192950B2 (en) * 2009-11-20 2015-11-24 Wagner Spray Tech Corporation Sprayer for a fluid delivery system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3459374A (en) * 1965-07-07 1969-08-05 Ransburg Electro Coating Corp Electrostatic coating apparatus
US3913844A (en) * 1974-03-13 1975-10-21 Graco Inc Safety spray gun trigger
EP0572237A1 (en) * 1992-05-27 1993-12-01 Ransburg Corporation Spray gun with dual mode trigger

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9192950B2 (en) 2009-11-20 2015-11-24 Wagner Spray Tech Corporation Sprayer for a fluid delivery system
EP3061530A1 (en) 2015-02-26 2016-08-31 Anest Iwata Europe Srl Spray gun
WO2016135612A1 (en) * 2015-02-26 2016-09-01 Anest Iwata Europe S.R.L. Spray gun
US10940498B2 (en) 2017-09-14 2021-03-09 Wager Spray Tech Corporation Airless spray gun with improved trigger assembly

Also Published As

Publication number Publication date
AU2009335963B2 (en) 2014-10-09
EP2340128A1 (en) 2011-07-06
US20110248100A1 (en) 2011-10-13
TW201036702A (en) 2010-10-16
EP2340128B1 (en) 2014-02-26
US8789770B2 (en) 2014-07-29
AU2009335963A1 (en) 2010-07-15
TWI465293B (en) 2014-12-21
CN102215981A (en) 2011-10-12
CN102215981B (en) 2014-04-16

Similar Documents

Publication Publication Date Title
EP2340128B1 (en) Tooless needle change spray gun
US20180050361A1 (en) Spray gun having a trigger lock, trigger lock for a spray gun, and method for attaching, for activating, and for deactivating a trigger lock
JP5787407B2 (en) Spray gun
JP6538661B2 (en) Nozzle assembly, system and related method
EP3284544B1 (en) Air cap arrangement and spray gun
CN108246533B (en) Spray tip
EP1686843A3 (en) Plasma arc torch
US12005466B2 (en) Fluid sprayer and components of a fluid sprayer
EP3351310B1 (en) Retention and disassembly of hvlp spray cap assembly
US20070131792A1 (en) Spray nozzle shroud
EP2544824B1 (en) Multiple spray tip turret assembly for paint sprayer
KR20170117069A (en) Fluid spray gun, filter for the gun, and method for extracting the filter from the gun
US20150266045A1 (en) Injector nozzle
US20120261493A1 (en) Atomizing nozzle structure
US20160008825A1 (en) Spray applicator tool
US9458959B2 (en) Coupling assembly
JP6059274B2 (en) Spray gun
EP3543579B1 (en) Gardening fluid connection device
DE202012000078U1 (en) Universal manual spray shower
JP2009291738A (en) Coating gun
TH85184B (en) Liquid atomizer
TH85184A (en) Liquid atomizer

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200980146083.2

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09796188

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2009335963

Country of ref document: AU

WWE Wipo information: entry into national phase

Ref document number: 2009796188

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 2009335963

Country of ref document: AU

Date of ref document: 20091214

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 13140311

Country of ref document: US

NENP Non-entry into the national phase

Ref country code: DE