US2059706A - Air painting device - Google Patents

Air painting device Download PDF

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US2059706A
US2059706A US551137A US55113731A US2059706A US 2059706 A US2059706 A US 2059706A US 551137 A US551137 A US 551137A US 55113731 A US55113731 A US 55113731A US 2059706 A US2059706 A US 2059706A
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valve
air
piston
nozzle
barrel
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US551137A
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Jens A Paasche
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Jens A Paasche
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02Spray pistols; Apparatus for discharge
    • B05B7/12Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages
    • B05B7/1254Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means being fluid actuated
    • B05B7/1263Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means being fluid actuated pneumatically actuated
    • B05B7/1272Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means being fluid actuated pneumatically actuated actuated by gas involved in spraying, i.e. exiting the nozzle, e.g. as a spraying or jet shaping gas
    • B05B7/1281Serial arrangement, i.e. a single gas stream acting on the controlling means first and flowing downstream thereof to the nozzle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30Nozzles, 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
    • B05B1/3033Nozzles, 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
    • B05B1/304Nozzles, 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
    • B05B1/3046Nozzles, 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
    • B05B1/306Nozzles, 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 the actuating means being a fluid
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S239/00Fluid sprinkling, spraying, and diffusing
    • Y10S239/14Paint sprayers

Description

Nov. 3, 1936. v- J. A. PAASCHE 2059,706
AIR PAINTING DEVICE Filed July I6, 1951 Patented Nov. 3, 1936 UNITED STATES PATENT OFFICE 11 claims.
The invention relates generally to air painting devices and more particularly has reference to painting devices in which the application of paint, color coats, or the like, is produced by.
air under pressure.
An object of the invention is to provide a device of this nature which embodies new and im; vproved means for actuating the device.
Another object of the invention resides in the provision of such a device in which the pressure of the air supplied to the device is utilized in a novel manner to actuate the means by which the device is controlled.
More particularly stated, an object of the invention resides in the provision oi an air painting device for applying paint or other surfacecoating material by means of air under pressure, which device embodies a hollow barrel having valve means therein for controlling the passage of paint and air therethrough, and'means in said barrel arranged to be actuated by incom ing air to open said valve means, said parts being so related that the air after actuatingl said valve means passes through said barrelto produce a :dow of the coating-material from the device.
In conjunction with the foregoing objects, the invention has as an object the provision of a novel device which is adapted to be used in banks or batteries of several devices, all of which f may be under the control of a Single instrumentality.
Other objects and advantages will become apparent in the following description and from the accompanying drawing, in which:
AFigure l is a view partially in plan and partially in elevation illustrating an apparatus embodying the features of the invention.
Fig. 2 is a longitudinal, axial section on an enlarged scale through the air painting device.
Figs. 3 and 4 are views partially in section of different types of spray nozzles Iand their associated control elements utilized as replacement assemblies for the device shown in Fig. 2.
Fig. 5 illustrates an extension and a modified form of spray nozzle for use in connection with the device illustrated in Fig. 2.
Fig.v6 is a view on a reduced scale of a modified form of apparatus. Y
In describing the preferred embodiment of the invention, it will be considered that the device is adapted for atomizing paint or other coating' material by air under pressure. It should be understood, however, thatthe device is capable of atomizing liquids, other than paint, by pressure uids, other than air, and the terms paint and air are herein employed, not in`a limiting sense, but for the purpose of simplifying the discussion of the invention. Moreover, while the invention is susceptible of various modiiications and alternative constructions, I have shown in the drawings and will herein describe in detail the preferred embodiment, but it is to be understood that I do not thereby intend to limit the invention to the specific form dis- 10 closed, but intend to cover all modifications and alternative constructions falling within the spirit and scope of the invention as expressed in ,the appended claims.
In the embodiment of invention `which has 15 been selected for the purpose of illustration, and with particular reference to Fig. 2, lthe body of the spraying ydevice comprises a barrel I0' in the form of a tubular member which' is preferably cylindrical and has a .portion I'I of restricted size at one end thereof. The outerend of the restricted portion II has an annular flange III thereon providing an abutment for an inturned shoulder on a gland .I2 to hold the gland rotatably on the portion II. The gland is internally screw threaded to engage complementary screw-threads on a' head I3 having an internal passageway i4 at the front end thereof. Paint or other material to be sprayed is supplied to the passageway I4 through an integrally formed 3d nipple I5. The union between the head I3 and barrel portion II allows the head to be rotatably adjusted about its axis so that the paint may be supplied to the device from any angle through the nipple l5. The head is provided 35 with a longitudinal passageway I6 for air, which passageway substantially divides the head into two concentrically arranged -parts which are maintained in position by the integral formation of the head and nipple I5. 40
The front end of the head receives a nozzle assembly, generally designated at I'I, arranged to be detachably secured thereto. The nozzle assembly comprises a centrally disposed tapering tip I8 having a tapering axial bore I9 commun- 45 cating with the paint passageway I4 and an annular passageway 20, registering with the air lpassageway I6. The tip is held in assembled but detachable relationship on the head by such means as a nut 2I engaging the tip and having 50A tionship to the tip by such means as a gland 23 carried by the nut 2I, cooperates with the tip in providing an annular restricted emission port 24 about the restricted mouth 25 of the bore I9. 'I'he flow of air under pressure through the port 24 is effective in a manner which is well-understood to create and eject a spray of paint from the device.
Within the bore I9 a valve seat is provided which cooperates with a valve 26, herein shown as a needle valve, for controlling the flow oi' paint from the device. The valve 26 is actuated by means of an integrally formed valve stem 21 which extends'rearwardly and axially through the head I3 and into the larger portion of the 'barrel III. The head I3 is provided with a. rearwardly facing axial bore 28 to receive packing 29 of any suitable character. Preferably, the packing is held in place by means which may be removed from the device as a unit in order to permit replacement thereof by a corresponding unit of diierent size. To this end, the rear face of the head I3 ares outwardly, as at 30, from the bore 28 to cooperate with a complementary surface formed on the end of a packing and bearing member 3 I. This member has an annular shoulder 32 thereon arranged to abut an outwardly facing shoulder 33 provided on the end of the restricted portion I I of the barrel. Thus, when the head I3 is screwed into the restricted portion Il, the bearing member vwill be securely clamped between theY shoulder 33 and the end of the head.
The front end of the bearing member is radially bored, as at 34, to form when the parts are assembled a continuation of the bore 28. Hence, the bore 34 may, and usually does, receive a p0rtion of the packing material 29. The rear portion of the bearing member is apertured to per-4 mit the stem 21 to extend therethrough. Sur- Y disposed rearwardly of the restricted portion II,
defines a cylinder compartment 31 having a rear wardly directed open face arranged to be closed by an end` cap 38 detachably screw-threaded onto the barrel. Within the chamber 31" is located means for operating the needle valve 26, which means is responsive to the pressure of the air as the air is delivered to the nozzle. Thus, the end of the valve stem 21, which extends into the chamber 31, passesthrough a piston assembly, generally designated 39, arranged for reciprocating movement within the chamber. The piston assembly comprises a ceninal, elongated hub 40 which preferably has a packing assembly mounted in a bore 4|!a therein and similar generally to thatv located forwardly thereof in the bores 28 and 34. The hub 40 has an integrally formed annular flange 4I thereof arrangedvto cooperate with a disk 42, having screw-threaded engagement with the hub 48, to secure a exible piston washer 43 of leather or the like to the hub. Air under pressure is introduced at some point intermediate the piston assembly and the nozzle and it is'preferred that the barrel I8 be apertured, as at 44, near the front end of the chamber 31 to provide an air inlet port which is defined by the customary nipple 45. The piston assembly 33 is spaced from the'front end of the chamber 31` a distance sumcent to clear the port 44.
Vtrolling and paint controlling valves.
It will be apparent from the foregoing that the introduction of air through the aperture 44 will cause the piston. to move rearwardly. The valve stem 21 beyond the piston assembly carries a piston engageable head 49 spaced a short distance therefrom to provide for a limited amount of lost motion before the piston contacts the head to move it rearwardly and thereby open the needle valve 26. Return movement of the piston i`s effected, in the present instance, by suitable resilient means bearing between the end cap 38 and the piston assembly 39. Thus, opposed bosses 46 and 41, on the disk 42 and end cap 38 respectively, provide seats for a helical spring 48 arranged to exert a force for normally holding the valve 26 seated.V The boss 46 incidentally is the part of the piston assembly which engages the head 49. `The rear face of the head 49 is cupshaped to receive one end of a second and smaller helical spring 50, the other end of which is centered about a pin I carried by a tension adjusting screw -52 mounted in the end cap 38. Ihus the force exerted on the valve 26 may be adjusted as required.
In order positively to insure operation of the piston whenever air under pressure is admitted to the inletv aperture 44, an air control valve is interposed between the aperture 44 and the nozzle. This air control valve preferably is actuated by the piston mechanism 39 to open prior to the opening of the needle valve 26. In the present embodiment, the forward end of the piston hub 40 is tapered, as at 53, to form a valve member. l'lihebarrel I0 is provided with an in' ternl annular iiange 54 defining a central aperture and finished to provide a valve seat for the valve member 53.
When the parts are assembled, the arrangement is such that the valves 26 and 53 open and close according to the movements of the piston assembly 39'. The valve 53 controls the flow oi! iiuid from the air inlet aperture 44 to the nozzle member and, when the device is 1noperative, prevents the iiow of air to the nozzle. It. will be evident, therefore, that, when-air under pressure is first admitted to the device, the piston assembly 39 will be ,positively moved rearwardly of the barrel to first open the air valve` 53 and permit a ow of atomizing air to the nozzle. Subsequently the boss 46 engages the head 49 on the valve stem and opens the needle valve 26 gradually allowing paint to ow through the nozzle into the air stream. The piston will be held in its rearward position as long as air is admit-ted to the barrel, but as soon as pressure on the piston is relieved, the springs 48 and 58 operate individually to'close both the air con- While the present device may be used by itself, it is as readily capable of' being employed in banks or batteries of two or more devices which are controlled and actuated by asingle instrumentality. The use of severalY devices is desirable when the devices are employed in connection with an automatic paint applying machine such, for example, as that illustrated anddescribed in my copending application Serial No. 523,393 med March 1s, 1931.
One preferred form of means for actuating one or more ofthe paint applying devices is shown in Fig. 1. Air under pressure is supplied to the device in the following manner: A conduit 55 it connected through a swivel connection 56 with the air inlet nipple 45. The conduit 55 is preferably in the form of a rigid pipe or tube which sheaves is engaged by a universal bracket E1 for supporting the device from a stationary part 58. A hexible conduit 59 provides communication between the rigid conduit 55 and a valve mechanism, generally indicated at 60, from which a conduit el leads to a source of air under pressure (not shown). The valve mechanism 60 includes a reciprocable valve member 62 which is normally held in valve-closing position by a spring te. A valve stem lili, connected with the valve t2, extends outside the valve housing and is engageable by a pivoted valve-actuating cam t5 mounted externally of the valve mechanism. By this arrangement, the means by which the device is manipulated may be mounted at a considerable distance from the device itself as, for example, adjacent the edge of a table or moving conveyer on which articles to be painted are `mounted. Such means as a spindle '65, carried by the table and having a cam follower 6l thereon arranged in the movement oi the table to engage the cam 65, may be employed to actuate the valve at predetermined points in the movement of the table. Preferably, a cut-oil valve 68 is interposed' between the valve mechanism 60 and the device for preventing actuation of the device as desired.
vWhen several of the devices are employed as a battery, all of such devices may be actuated by the single valve mechanism SIB. In such a case, a branch conduit 69 establishes communication between the conduit 59 and the several additional devices. As a result, when the valve mechanism 60 is actuated, air under pressure is delivered to the barrel of each device to actuate the devices simultaneously. Obviously, if each device is provided with a cut-oil valve 68, they may be selectively used. A conduit 'I0 supplies paint from a suitable source (not shown) to the nipple I5.
Fig. 6 shows a modied form of the structure shown in Figs. 1 and 2 wherein the atomization may be accomplished by air under less pressure than that which actuates the piston assembly.
- This end is attained by providing a pressure relduction valve between the supply line and the ably on the side of the head I3 opposite the paint inlet nipple I5. This conduit Iiil is controlled by a manually operable needle valve I8b of customary construction. for regulating the air flow to the nozzle. In this construction the passageway I 6` between the inlet mouth oi the conduit I6l and the piston assembly is closed. Thus, the device is adapted to be operated by air under low pressure while the piston is actuated by full pressure and thereby provides a simple, economical and positively operating structure.
Inasmuch as the present device is particularly adaptable for use in connection with paint applying machines which generally are capable of handling many diierent types of objects, the invention provides means by which the device may be readily adjusted or converted to adapt it to properly coat these diierent types of objects. Thus, the nozzle assembly is readily detachable from the head I3 to allow the characteristics of the coating spray created by the device to be varied to provide a ilner or a coarser spray. This particular adjustment, of course, has its limits and, where the nature of the spray desired is beyond these limits, a replaceable assembly such as that shown in Figs. 3 or 4 is provided.
The assembly shown in Fig. 3 embodies a nozzle and head assembly, similar in general structure to that illustrated in Fig. 2, but arranged to produce a spray which may be either iiner or coarser than that which the assembly shown in Fig. 2 is capable ci delivering. inasmuch as the passageway for the material through the nozzle oi the assembly illustrated in Fig. 3 will probably be of different dimensions, a valve 3d oi proper size and its integrally formed valve 2l is supplied as a part of the assembly. Packing material 2t for the valve stem 37 is likewise provided.
The device may be readily converted by .means of these different assemblies in the following manner. The head I8 is rst unscrewed from the restricted portion II oi the barrel, the end cap 38 is removed from the barrel, and the valve stem 21 withdrawn through the open end oi the barrel. A head I3 having a desired type of nozzle thereon, and the new packing material therein, is then screwed onto the barrel. The supplanting valve stem is assembled with the piston and the parts inserted in the barrel. The valves 2G and 53 are properly adjusted, the end cap 38 replaced on the barrel. and the -device is ready for operation.
The assembly shown in Fig. 4 is adapted to produce a very heavy or coarse spray and embodies a nozzle suitable for this prpose. In this assembly, it may be desirable to provide a complete bearingmember assembly 3l as well as a different piston assembly. This is in order that a proper cooperation between these parts and the supplanting valve stem 21 may be obtained. Otherwise, the manner of assembling the parts with the barrel is the same as has been described.
In Fig. 5 -means is shown for increasing the distance between the barrel and the nozzle. 'I'his means comprises a tubular extension 1I having a gland 'I2 at one end arranged to engage the screw threads formed on the forward end of the head I3. yThe other end of the extension is screw threaded to receive a suitable nozzle assembly 13. The extensionls advantageous since the device, when used in connection with a paint applying machine, is ordinarily mounted on a stationary part and its adjustment relative thereto Is limited. Consequently, where it is desirable to deliver the spray at some point which is beyond the ordinary `limit oi.' adjustment, the extension 1I is employed. Obviously, thisp extension may be curved if desired while needles 21 of corat the end of y the extension.
It will beapparent from the foregoing that a novel device has been provided which is very simple in construction. The device is elcient in operation, and is readily adapted for multiple use in batteries which may be simultaneously operated. Furthermore, the device may be converted by merely replacing certain partsV with corresponding parts so that the device may meet all operating conditions and requirements.
I claim as my invention:
1. In a spraying device, the combination of means for creating and ejecting a spray of coating material therefrom by pressure iluid, means for controlling the flow of coating -nutterial` thereto, -means for controlling the flow of pressure iuidl through said device, an operator movable in response vto the force of said pressure iiuid, meansv connecting said operator with said.
pressure fluid control means, a lost motion connection between said operator and said coating material control means whereby actuation of the responding length are used to shut oi! material operator eiects successive movements of said control sure il d control means and said coating material control means acting separately to oppose movement thereof out of a normally closed position'.
2. A spraying device comprisingAn lcombination, a barrel having an emissionnozzle thereon and including an axially disposed material passageway and an air passageway located eccentrically of the axis, an axial needle valve controlling the material passageway at the nozzle, an air valve concentric with said needle valve and controlling a ilow of air to the air passageway, an
air operated piston in `said barrel rigid with said air valve and movable when subjected to air pressure to open said air valve, said needle valve including a shank adapted to pass axially through and slide relative to said piston, a head on said shank engageable by said piston to open the needle valve after the air valve has been opened, springs engaging said piston and said shank to separately hold the valves. associated therewith normally closed, andan air inlet to said barrel in operating communication with said piston.
3. A'spraying device comprising, in combination, a barrel having an emission nozzle thereon andincluding an axially disposed material passageway and an air passageway located eccentrically of the axis, a needle valve controlling the material passageway at the nozzle, an air valve controlling a iiow of air to the air passageway, an air operated piston in said barrel rigid with said air valve and movable when subjected to air pressure to open said air valve, said needle valve including a shank adapted to pass through and slide relative to said piston, a head on said shank.
engageable by said piston to open the needle valve after the air valve has been opened, and an air inlet tov said barrel in operating communication with said piston.
4. A spraying device comprising, in combination, a barrel having an emission nozzle, an air operated piston therein spaced from said nozzle, an axial material passagewayy communicating with said nozzle, a needle valve in Lsaid nozzle controlling the emission of material therefrom, said nozzle having a shank bearing in said piston and slidable relative thereto, a lost motion connection between said shank and said piston for actuating said needle valve, a passageway for airto said nozzle, an air valve in said passageway connected with said piston for movement therewith, and a passageway for delivering air under pressure to said piston and air passageway.
5. A spraying device comprising, in combination, a barrel formed of transversely divided front and rear sections, said front section having a nozzle thereon and a material passageway there-- in communicating with-said nozzle, a piston in said rear' section, communicating air passageways in said front and rear sections, a needle valve for controlling a ilow of material through said nozzle and having a part extending into said rear section and operatively connected with said piston, an air valve actuated by said piston, and a. removable packing gland about said needle valve part including means adapted to be clamped betweenthe front and rear sections when the device is assembled.
H6. A spraying device comprising, in combination, a barrel having a nozzle thereon, means for supplying air under pressure and material to be sprayed to said barrel, a valve controlling cans, and resilient means for said presthe ilow o1' material through said nozzle, a valve for controlling the flow oi air pressure to said nozzle, an` operator for the valve controlling the flow of material to the nozzle including a stem, actuating means mounted for slidable movement relative to said stem under the 4influence of the pressure of incoming air and having an operating connection with said air controlling valve, means on said stem disposed for abutment by said actuating means in the relative sliding movement thereof, and resilient means bearing individually on said actuating means and on said stem for returning each separately to the idl positions thereof.
'1. In a spraying device, the combination o! means for creating and ejecting a spray of coating material therefrom by uid pressure, means for controllingthe iiow of coating material thereto, means for controlling the flow of pressure uid through the spray means, an operator movable in response to the force of said pressure fluid, a rigid connection between said operator and said pressure fluid control means, a lost motion connection between said operator and said coating material controlling means, whereby actuation of the operator effects successive movements of said control means, and resilient means for said pressure uid control means and said coating material control means acting separately to oppose movement thereof out of a normally closed position.
8. A spray gun comprising a body with a material passageway therethrough terminating at its front end in a discharge nozzle, a cylinder separate from said passageway, a piston in said cylinder, a needle extending through said piston with its front end in cooperative relation to said nozzle, means to admit iluid pressure to the front end of the cylinder to move said piston rearwardly, a spring in said cylinder opposing the rearward movement of the piston, a head on the needle. valve engageable by said piston in its rearward movement to open said needle valve, and a second spring acting on` the needle valve independently of the piston to oppose the opening of said needle valve.
9. A spraying device comprising, in combination, a barrel having a nozzle thereon, controllable'means for supplying air under pressure and material to be sprayed to said barrel, a valve controlling the ow of material through said nozzle and a valve operator for said valve including a stem, actuating means mounted for slidable movement relative to said stem under the iniiuence of the pressure of incoming air, means on said stem disposed for abutment by said actuating means in the relative sliding movement thereof to move said stem longitudinally for opening said valve, and resilient means bearing individually on said actuating means and on said stem for returning each separately to the original or closed position thereof.v
10. A spray gun comprising a body with a material discharge passageway therethrough, a needle valve cooperating with the discharge end of said material discharge passageway,` a spring tending to hold said valve closed, a cylinder separate from said passageway, a reciprocable piston, a second spring acting on the piston to move it in one direction, said piston being movable by compressed air admitted to the cylinder in opposition to the spring, said piston having a motivating engagement with the needle valve when moving in one direction and being movable inmunicating with said nozzle, a valve having pressure fluid responsive actuating means for controlling the delivery of material to said nozzle, a conduit for delivering pressure fluid to said actu'ating means, a duct leading from a point adjacent tousaid actuating means for conveying pressure iiuid to said nozzle to effect a spray of material therefrom, and a valve in said duct manually adjustable from a location exteriorly of the device to control the iow of. pressure `fluid to the nozzle.
JENS A. PAASCHE.
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Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2519939A (en) * 1945-11-23 1950-08-22 Smith Welding Equipment Corp Cutting torch
US2533953A (en) * 1947-09-08 1950-12-12 Vilbiss Co Spray gun
US2553401A (en) * 1945-12-03 1951-05-15 Vilbiss Co Spray gun
US2564896A (en) * 1946-06-17 1951-08-21 Binks Mfg Co Sound deadening gun
US2586809A (en) * 1946-05-07 1952-02-26 Specialties Dev Corp System for dispensing a fireextinguishing medium
US3032278A (en) * 1960-06-08 1962-05-01 Horace F Thomas Apparatus for spraying viscous fluids
US4749128A (en) * 1986-12-01 1988-06-07 Smith Gary L Spray gun
US4824026A (en) * 1986-08-06 1989-04-25 Toyota Jidosha Kabushiki Kaisha And Ransburg-Gema K.K. Air atomizing electrostatic coating gun
US5364033A (en) * 1993-07-06 1994-11-15 Ransburg Corporation Seal for spray gun
WO1995013881A1 (en) * 1993-11-18 1995-05-26 Badger Air Brush Co. Airbrush with detachable regulating tip
US5609300A (en) * 1995-01-09 1997-03-11 Campbell Hausfeld/Scott Fetzer Company Airless paint sprayer outlet check valve
US5639219A (en) * 1995-01-09 1997-06-17 Campbell Hausfeld/Scott Fetzer Co. Airless paint sprayer intake dampener and inlet valve spring
US5794825A (en) * 1994-09-06 1998-08-18 Loctite (Ireland) Limited Applicator for liquids such as adhesives
EP1072320A1 (en) * 1998-04-13 2001-01-31 Nauchno-Issledovatelsky Inst. Nizkikh Temperatur pri MAI(Mosk. Gosudarstvennom Aviatsionnom Inst.-Tekhnicheskom Univers.) Device for generating a gas-droplet stream and valve
US9358561B2 (en) 2011-07-28 2016-06-07 3M Innovative Properties Company Spray head assembly with integrated air cap/nozzle for a liquid spray gun
US9751100B2 (en) 2011-02-09 2017-09-05 3M Innovative Properties Company Nozzle tips and spray head assemblies for liquid spray guns
US9802213B2 (en) 2012-03-06 2017-10-31 3M Innovative Properties Company Spray gun having internal boost passageway
US9802211B2 (en) 2011-10-12 2017-10-31 3M Innovative Properties Company Spray head assemblies for liquid spray guns
US10071388B2 (en) 2009-01-26 2018-09-11 3M Innovative Properties Company Liquid spray gun, spray gun platform, and spray head assembly
US10493473B2 (en) 2013-07-15 2019-12-03 3M Innovative Properties Company Air caps with face geometry inserts for liquid spray guns
US11167298B2 (en) 2012-03-23 2021-11-09 3M Innovative Properties Company Spray gun barrel with inseparable nozzle

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2519939A (en) * 1945-11-23 1950-08-22 Smith Welding Equipment Corp Cutting torch
US2553401A (en) * 1945-12-03 1951-05-15 Vilbiss Co Spray gun
US2586809A (en) * 1946-05-07 1952-02-26 Specialties Dev Corp System for dispensing a fireextinguishing medium
US2564896A (en) * 1946-06-17 1951-08-21 Binks Mfg Co Sound deadening gun
US2533953A (en) * 1947-09-08 1950-12-12 Vilbiss Co Spray gun
US3032278A (en) * 1960-06-08 1962-05-01 Horace F Thomas Apparatus for spraying viscous fluids
US4824026A (en) * 1986-08-06 1989-04-25 Toyota Jidosha Kabushiki Kaisha And Ransburg-Gema K.K. Air atomizing electrostatic coating gun
US4749128A (en) * 1986-12-01 1988-06-07 Smith Gary L Spray gun
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US10071388B2 (en) 2009-01-26 2018-09-11 3M Innovative Properties Company Liquid spray gun, spray gun platform, and spray head assembly
US9751100B2 (en) 2011-02-09 2017-09-05 3M Innovative Properties Company Nozzle tips and spray head assemblies for liquid spray guns
US9358561B2 (en) 2011-07-28 2016-06-07 3M Innovative Properties Company Spray head assembly with integrated air cap/nozzle for a liquid spray gun
US9802211B2 (en) 2011-10-12 2017-10-31 3M Innovative Properties Company Spray head assemblies for liquid spray guns
US9802213B2 (en) 2012-03-06 2017-10-31 3M Innovative Properties Company Spray gun having internal boost passageway
US11167298B2 (en) 2012-03-23 2021-11-09 3M Innovative Properties Company Spray gun barrel with inseparable nozzle
US10493473B2 (en) 2013-07-15 2019-12-03 3M Innovative Properties Company Air caps with face geometry inserts for liquid spray guns

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