US3074651A - Spray gun - Google Patents

Spray gun Download PDF

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US3074651A
US3074651A US854117A US85411759A US3074651A US 3074651 A US3074651 A US 3074651A US 854117 A US854117 A US 854117A US 85411759 A US85411759 A US 85411759A US 3074651 A US3074651 A US 3074651A
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Prior art keywords
nozzle
spray gun
catalyst
channels
liquid
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US854117A
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Agosti Bruno
Orlandi Primo
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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
    • B05B7/24—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
    • B05B7/2478—Gun with a container which, in normal use, is located above the gun
    • 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
    • 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
    • B05B7/2435—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 by parallel conduits placed one inside the other
    • 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
    • B05B7/2472—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device comprising several containers

Definitions

  • the invention refers to a spray gun to obtain a contemporaneous and separated spraying of a plurality of liquids (colors, paints, etc.), said liquids being delivered separately at the outlet of the spray gun and intimately mixed therein by pressure air delivered also at said outlet.
  • the spray gun according to the invention comprises substantially a rear body provided with an air inlet and a needle valve to cut off the flow of the colours or prints with control lever of said valve to obtain a contemporaneous regulation of said needle to control the liquid flow to the central outlet nozzle under suction or pressure delivery.
  • the central nozzle having a hole or channel for the spraying of the colour or paint, has upon its bottom peripheral channels for a second liquid (as for instance a drying or catalyst means for the paint or color) which emerges from a separate container and on the same central nozzle a second nozzle is arranged, that pipes said liquid to the outlet point in such a way that the two liquids are separated one from the other even though the two nozzles form together a single nozzle.
  • a second liquid as for instance a drying or catalyst means for the paint or color
  • a small air delivering head with ring nut fastened to the rear body is applied to said two nozzles serving for two different liquids, being the pressure air feed to said small head by a two way regulatordistributor, one of said ways being directed to the central outlet hole, to obtain a mixture and contemporaneous pulverization of two liquids and the other to the side channels to obtain the required widening of the spout cone.
  • the invention has for its purpose to provide such a spray gun, which is particularly adapted to the spraying of two different liquids, that cannot be previously mixed together or whose mixture is only advisable by means of their contemporaneous and independent mixture causing their union when use thereof takes place.
  • a second coaxial nozzle 2 is secured to said nozzle 1 and serves to cause a deviation of said channels 1a towards the outlet hole of the nozzle 1 in such a way however that the two liquids remain separated from one another even though a single spout result therefrom.
  • a head 3 is fitted to the second nozzle and secured to the rear body of the spray gun by means of a ring nut 4, said head having peripheral channels 3a to enable Among said liquids the polyesteric paints can be mentioned which for their plasticisation are to be integrated in exactly preestablished amounts with a hardening liquid (catalyst) having the feature of quick drying which does not allow the preparation of an integrated paint.
  • a hardening liquid catalyst
  • FIG. 1 is an assembly View of the spray gun with two containers for the two different liquids and front part of said spray gun in section.
  • FIG. 2 is another embodiment of the air and catalyst liquid delivering system.
  • FIGS. 3 and 4 are other embodiments of the arrangement of the containers for the two liquids and of the associated feeding pipes.
  • FIGS. 5 and 6 are respectively a side view and a plan view of another embodiment of head 3.
  • FIGS. 7 and 8 are respectively a side view and a plan view of the second nozzle covering the paint nozzle also in a modified form.
  • FIGS. 9 and 10 are respectively a side view and a plan view of another embodiment of the paint delivering nozzle.
  • FIG. 11 is a vertical section of the assembly constituted by the three modified pieces and taken along the axis thereof.
  • the spray gun according to the invention comprises as shown in FIG. 1 a central nozzle 1 with an axial hole an air pressure How coming out from a two way distributor-regulator 5, which forms moreover with the nozzle 2 passages or channels 3b that are also converging towards the outlet hole of central nozzle so that the pressure air coming out from another way of said distributor can blow off.
  • Said pressure air blow has the purpose of obtaining an intimate mixture and pulverization of the two liquids while the pressure air flow through the peripheral channels 3a causes a widening of the pulverized mixture cone spout, as required, by means of the branches 3a sloping towards the spout outlet.
  • a suitable proportion of the catalyst liquid flows from a tube 7, coming out from a container 8, through a regulator 6 to the channels 111, and a suitable proportion of the paint contained in the tank 9 and regulated by means of a common needle valve 11 is piped through the tube 10 to the nozzle 1.
  • the tanks 8 and 9 are coaxial and arranged suitably one upon the other through a bayonet coupling; it is to be understood however that they can be arranged in a dififerent way as for instance one at the top and the other at the bottom of the apparatus as shown in FIG. 2.
  • a single upper container 8 for the catalyst and a lower tube 9 for the pressure paint are provided.
  • FIG. 2 shows also another embodiment of the air and catalyst liquid delivering system.
  • the pressure air is introduced through the second way into the channels 1a in lieu of the catalyst that passes through the channels 3!).
  • the second way of the air distributor is sloping downwards as to the axis of the spray gun.
  • the nozzles 1 and 2. are not secured to each other by screwing, but they are simply inserted one into the other and conformation thereof is such, that a tight fitting of the cone nozzle 1 (male) inside of catalyst cone nozzle 2. takes place in such a way that the pressure air is separated from the catalyst liquid.
  • the contact surfaces of opposed nozzles 1 and 2. have supporting planes 1b and 2b that register perfectly one with the other so that the air flowing through the channels 1a, in the peripheral part of nozzle 1, is prevented from entering the catalyst channel 3b.
  • This embodiment of the three pieces 1, 2 and 3 provides an efiective construction and operation advantage, inasmuch as the assembling and disassembling is made very much easier. This is a very important feature of said apparatus, which require a frequent cleaning.
  • This construction feature enables moreover, besides the usual flow regulation of the catalyst liquid, also the calibration of the nozzle relating thereto according to different sizes in conformity with the additive percentage of said catalyst.
  • a spray gun comprising a central nozzle having an axial outlet hole, a container for a main liquid, a vertical tube communicating with the interior of said container and said outlet hole for supplying said main liquid to said outlet hole, said nozzle having circularly spaced peripheral channels formed upon the outer surface thereof, another container for a secondary liquid located above the first-mentioned container, a regulator communicating with said peripheral channels, another tube communicating with the interior of said other container and said regulator for supplying said secondary liquid to said peripheral channels, a second nozzle coaxially enclosing and spaced from the first-mentioned nozzle, said second nozzle having inner surfaces directed toward the peripheral channels of the first-mentioned nozzle to deviate said secondary liquid flowing through the peripheral channels toward said outlet hole, a head coaxially enclosing said 20 second nozzle and having inner passages converging to- Ward said outlet hole and peripheral channels circularly spaced relatively to said outlet hole and having outlet portions directed angularly towards the axis of the firstmentioned nozzle, a

Description

' Jan. 22, 19 3 Filed Nov. 19, 1959 B. AGOSTl ETAL SPRAY GUN 2 Sheets-Sheet 2 INVENTORS! B. Agustin; I. Or/anuc' I o1; gain United States Patent 3,074,651 SPRAY GUN Bruno Agosti and Primo Orlandi, both of Via Paolo Sarpi 61, Milan, Italy Filed Nov. 19, 1959, Ser. No. 854,117 Claims priority, application Italy Dec. 5, 1958 1 Claim. (Cl. 239304) The invention refers to a spray gun to obtain a contemporaneous and separated spraying of a plurality of liquids (colors, paints, etc.), said liquids being delivered separately at the outlet of the spray gun and intimately mixed therein by pressure air delivered also at said outlet.
The spray gun according to the invention comprises substantially a rear body provided with an air inlet and a needle valve to cut off the flow of the colours or prints with control lever of said valve to obtain a contemporaneous regulation of said needle to control the liquid flow to the central outlet nozzle under suction or pressure delivery.
The central nozzle having a hole or channel for the spraying of the colour or paint, has upon its bottom peripheral channels for a second liquid (as for instance a drying or catalyst means for the paint or color) which emerges from a separate container and on the same central nozzle a second nozzle is arranged, that pipes said liquid to the outlet point in such a way that the two liquids are separated one from the other even though the two nozzles form together a single nozzle.
A small air delivering head with ring nut fastened to the rear body is applied to said two nozzles serving for two different liquids, being the pressure air feed to said small head by a two way regulatordistributor, one of said ways being directed to the central outlet hole, to obtain a mixture and contemporaneous pulverization of two liquids and the other to the side channels to obtain the required widening of the spout cone.
The invention has for its purpose to provide such a spray gun, which is particularly adapted to the spraying of two different liquids, that cannot be previously mixed together or whose mixture is only advisable by means of their contemporaneous and independent mixture causing their union when use thereof takes place.
for the distribution of the paint coming out from the associated container and with peripheral channels 1a through which flows the second liquid (catalyst) coming out from another container.
A second coaxial nozzle 2 is secured to said nozzle 1 and serves to cause a deviation of said channels 1a towards the outlet hole of the nozzle 1 in such a way however that the two liquids remain separated from one another even though a single spout result therefrom.
A head 3 is fitted to the second nozzle and secured to the rear body of the spray gun by means of a ring nut 4, said head having peripheral channels 3a to enable Among said liquids the polyesteric paints can be mentioned which for their plasticisation are to be integrated in exactly preestablished amounts with a hardening liquid (catalyst) having the feature of quick drying which does not allow the preparation of an integrated paint.
This and other invention features will clearly result by way of example from the following specification with reference to the accompanying drawing, wherein FIG. 1 is an assembly View of the spray gun with two containers for the two different liquids and front part of said spray gun in section.
FIG. 2 is another embodiment of the air and catalyst liquid delivering system.
FIGS. 3 and 4 are other embodiments of the arrangement of the containers for the two liquids and of the associated feeding pipes.
FIGS. 5 and 6 are respectively a side view and a plan view of another embodiment of head 3.
FIGS. 7 and 8 are respectively a side view and a plan view of the second nozzle covering the paint nozzle also in a modified form.
FIGS. 9 and 10 are respectively a side view and a plan view of another embodiment of the paint delivering nozzle.
FIG. 11 is a vertical section of the assembly constituted by the three modified pieces and taken along the axis thereof.
The spray gun according to the invention comprises as shown in FIG. 1 a central nozzle 1 with an axial hole an air pressure How coming out from a two way distributor-regulator 5, which forms moreover with the nozzle 2 passages or channels 3b that are also converging towards the outlet hole of central nozzle so that the pressure air coming out from another way of said distributor can blow off. Said pressure air blow has the purpose of obtaining an intimate mixture and pulverization of the two liquids while the pressure air flow through the peripheral channels 3a causes a widening of the pulverized mixture cone spout, as required, by means of the branches 3a sloping towards the spout outlet.
A suitable proportion of the catalyst liquid flows from a tube 7, coming out from a container 8, through a regulator 6 to the channels 111, and a suitable proportion of the paint contained in the tank 9 and regulated by means of a common needle valve 11 is piped through the tube 10 to the nozzle 1.
The tanks 8 and 9 are coaxial and arranged suitably one upon the other through a bayonet coupling; it is to be understood however that they can be arranged in a dififerent way as for instance one at the top and the other at the bottom of the apparatus as shown in FIG. 2.
According to FIG. 4 a single upper container 8 for the catalyst and a lower tube 9 for the pressure paint are provided.
FIG. 2 shows also another embodiment of the air and catalyst liquid delivering system. In this embodiment the pressure air is introduced through the second way into the channels 1a in lieu of the catalyst that passes through the channels 3!). In this case the second way of the air distributor is sloping downwards as to the axis of the spray gun.
In the modified form of the three pieces (that is paint nozzle 1, catalyst nozzle 2 and head 3) as shown in FIG- URES 5 to 11, the nozzles 1 and 2. are not secured to each other by screwing, but they are simply inserted one into the other and conformation thereof is such, that a tight fitting of the cone nozzle 1 (male) inside of catalyst cone nozzle 2. takes place in such a way that the pressure air is separated from the catalyst liquid.
The contact surfaces of opposed nozzles 1 and 2. have supporting planes 1b and 2b that register perfectly one with the other so that the air flowing through the channels 1a, in the peripheral part of nozzle 1, is prevented from entering the catalyst channel 3b.
This embodiment of the three pieces 1, 2 and 3 provides an efiective construction and operation advantage, inasmuch as the assembling and disassembling is made very much easier. This is a very important feature of said apparatus, which require a frequent cleaning.
This construction feature enables moreover, besides the usual flow regulation of the catalyst liquid, also the calibration of the nozzle relating thereto according to different sizes in conformity with the additive percentage of said catalyst.
It will be understood that various modifications and changes can be possibly carried out both in the arrangement of the containers for the two liquids and in the distribution system, without departing from the spirit of the invention or the features thereof as resulting from the appended claim.
We claim:
A spray gun, comprising a central nozzle having an axial outlet hole, a container for a main liquid, a vertical tube communicating with the interior of said container and said outlet hole for supplying said main liquid to said outlet hole, said nozzle having circularly spaced peripheral channels formed upon the outer surface thereof, another container for a secondary liquid located above the first-mentioned container, a regulator communicating with said peripheral channels, another tube communicating with the interior of said other container and said regulator for supplying said secondary liquid to said peripheral channels, a second nozzle coaxially enclosing and spaced from the first-mentioned nozzle, said second nozzle having inner surfaces directed toward the peripheral channels of the first-mentioned nozzle to deviate said secondary liquid flowing through the peripheral channels toward said outlet hole, a head coaxially enclosing said 20 second nozzle and having inner passages converging to- Ward said outlet hole and peripheral channels circularly spaced relatively to said outlet hole and having outlet portions directed angularly towards the axis of the firstmentioned nozzle, a distributor-regulator communicating with the inner passages and peripheral channels of said head, and means supplying compressed air to said distributor-regulator.
References Cited in the file of this patent UNITED STATES PATENTS 2,200,675 Northcutt May 14, 1940 2,724,615 Ariotti NOV. 22, 1955 2,757,048 Balmer July 31, 1956 2,786,716 Peeps Mar. 26, 1957 2,971,700 Peeps Feb. 14, 1961 FOREIGN PATENTS 909,276 Germany Apr. 15, 1954
US854117A 1958-12-05 1959-11-19 Spray gun Expired - Lifetime US3074651A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1471058 1958-12-05
IT1797058 1958-12-05

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US3074651A true US3074651A (en) 1963-01-22

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CH (1) CH380602A (en)
DE (1) DE1261788B (en)
FR (1) FR1242480A (en)
GB (1) GB940841A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3232540A (en) * 1963-07-17 1966-02-01 Cassanmagnago Ugo Spray gun for two-component paints, with separate concentrical nozzles
US4811904A (en) * 1983-12-21 1989-03-14 Manfred Ihmels Spray medium inset for spraying pistols and a spraying pistol suitable for application of such insets
US5799876A (en) * 1995-05-31 1998-09-01 Martin Marietta External mixed plural component spray gun
EP1424135A1 (en) * 2002-11-29 2004-06-02 Anest Iwata Europe Srl A manual spray gun and associated disposable cup
US20110200835A1 (en) * 2008-10-31 2011-08-18 E.I. Du Pont De Nemours And Company Method for producing coating layer
US20110245411A1 (en) * 2008-12-23 2011-10-06 E.I. Du Pont De Nemours And Company Method for producing sprayable lacquer
US20120141683A1 (en) * 2009-06-25 2012-06-07 E.I. Du Pont De Nemours And Company Spray device for coating and use thereof

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2517715C2 (en) * 1975-04-22 1977-02-10 Hans Behr PROCESS AND DEVICE FOR MIXING AND / OR DISPERSING AND BLASTING THE COMPONENTS OF A FLOWABLE MATERIAL FOR COATING SURFACES
AT355161B (en) * 1977-12-27 1980-02-25 Vianova Kunstharz Ag PAINT PROCESS
FR2483267A2 (en) * 1977-12-27 1981-12-04 Vianova Kunstharz Ag Water based spray painting applicator - preheats water used in auxiliary nozzles for main mixing nozzle
FR2450124A1 (en) * 1979-03-01 1980-09-26 Amiaut Jean Electric paint spray gun - has resistance heating elements controlling temp. for paints which thicken when cold
US6189809B1 (en) * 1999-09-23 2001-02-20 Illinois Tool Works Inc. Multi-feed spray gun

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2200675A (en) * 1937-09-11 1940-05-14 Northcutt Ellie Hugh Container for spray guns
DE909276C (en) * 1941-06-18 1954-04-15 Siemens Ag Process for producing metal precipitates by condensing metal vapor at high, in particular atmospheric, pressure
US2724615A (en) * 1950-10-27 1955-11-22 Glidden Co Spraying device
US2757048A (en) * 1953-01-09 1956-07-31 A Landolt A G Dr Spraying pistol
US2786716A (en) * 1954-03-29 1957-03-26 Vilbiss Co Spray gun
US2971700A (en) * 1957-07-22 1961-02-14 Vilbiss Co Apparatus for coating articles with chemically reactive liquids

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB510049A (en) * 1938-01-25 1939-07-25 Albert Krautzberger Improvements in apparatus for spraying paint and other substances
GB566543A (en) * 1943-07-21 1945-01-03 Semtex Ltd Improvements in or relating to spray producers
GB733401A (en) * 1950-09-20 1955-07-13 Rheem Mfg Co Improvements in flame spray apparatus, particularly for spraying with a fusible material
DE946812C (en) * 1951-08-13 1956-08-09 Anton Fischer Method and device for treating printing plates and photographic image carriers with caustic or strengthening or weakening fluids
DE1034076B (en) * 1955-03-22 1958-07-10 Walther Fa Richard C Spray gun with two concentric ring nozzles and a retractable lockable hollow needle
DE1774059A1 (en) * 1968-03-28 1972-02-24 Georg Wagner Winter preparation for self-sellers, preferably for drinks machines

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2200675A (en) * 1937-09-11 1940-05-14 Northcutt Ellie Hugh Container for spray guns
DE909276C (en) * 1941-06-18 1954-04-15 Siemens Ag Process for producing metal precipitates by condensing metal vapor at high, in particular atmospheric, pressure
US2724615A (en) * 1950-10-27 1955-11-22 Glidden Co Spraying device
US2757048A (en) * 1953-01-09 1956-07-31 A Landolt A G Dr Spraying pistol
US2786716A (en) * 1954-03-29 1957-03-26 Vilbiss Co Spray gun
US2971700A (en) * 1957-07-22 1961-02-14 Vilbiss Co Apparatus for coating articles with chemically reactive liquids

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3232540A (en) * 1963-07-17 1966-02-01 Cassanmagnago Ugo Spray gun for two-component paints, with separate concentrical nozzles
US4811904A (en) * 1983-12-21 1989-03-14 Manfred Ihmels Spray medium inset for spraying pistols and a spraying pistol suitable for application of such insets
US5799876A (en) * 1995-05-31 1998-09-01 Martin Marietta External mixed plural component spray gun
EP1424135A1 (en) * 2002-11-29 2004-06-02 Anest Iwata Europe Srl A manual spray gun and associated disposable cup
US20110200835A1 (en) * 2008-10-31 2011-08-18 E.I. Du Pont De Nemours And Company Method for producing coating layer
US20110245411A1 (en) * 2008-12-23 2011-10-06 E.I. Du Pont De Nemours And Company Method for producing sprayable lacquer
US20120141683A1 (en) * 2009-06-25 2012-06-07 E.I. Du Pont De Nemours And Company Spray device for coating and use thereof
CN102802805A (en) * 2009-06-25 2012-11-28 纳幕尔杜邦公司 Spray device for coating and use thereof

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Publication number Publication date
DE1261788B (en) 1968-02-22
CH380602A (en) 1964-09-15
FR1242480A (en) 1961-01-04
GB940841A (en) 1963-11-06

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