US2659623A - Gun construction for gas blast spraying heat-fusible materials - Google Patents

Gun construction for gas blast spraying heat-fusible materials Download PDF

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Publication number
US2659623A
US2659623A US64006A US6400648A US2659623A US 2659623 A US2659623 A US 2659623A US 64006 A US64006 A US 64006A US 6400648 A US6400648 A US 6400648A US 2659623 A US2659623 A US 2659623A
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United States
Prior art keywords
gas
construction
nozzle
head
gas head
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Expired - Lifetime
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US64006A
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English (en)
Inventor
Charles K Wilson
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Metallizing Engineering Co Inc
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Metallizing Engineering Co Inc
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Publication date
Application filed by Metallizing Engineering Co Inc filed Critical Metallizing Engineering Co Inc
Priority to US64006A priority Critical patent/US2659623A/en
Priority to GB17978/49A priority patent/GB643569A/en
Priority to FR990982D priority patent/FR990982A/fr
Priority to DEP52119A priority patent/DE808521C/de
Application granted granted Critical
Publication of US2659623A publication Critical patent/US2659623A/en
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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
    • B05B7/16—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 incorporating means for heating or cooling the material to be sprayed
    • B05B7/20—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 incorporating means for heating or cooling the material to be sprayed by flame or combustion
    • B05B7/201—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 incorporating means for heating or cooling the material to be sprayed by flame or combustion downstream of the nozzle
    • B05B7/203—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 incorporating means for heating or cooling the material to be sprayed by flame or combustion downstream of the nozzle the material to be sprayed having originally the shape of a wire, rod or the like

Definitions

  • This invention relates to improvements in gun construction for gas blast spraying heat-fusible materials.
  • Heat-fusible material spray guns of the gas blast type are devices in which such material is fed into a, melting zone in which it is melted, being thereafter expelled from the gun in subdivided form by a blast of air or other gas.
  • the materials to be sprayed may be fed into the melting zone either in the form of a rod or Wire or in the form of powder.
  • a mixture of fuel gas and combustion supporting gas such as a mixture of acetylene or propane and air or oxygen is fed to the melting zone through suitable jets which discharge the combustible gas mixture which when ignited causes the melting of the material.
  • the same may not always be completely melted as in some cases only some of the powder is melted, or some of the particles of powder may be only partially melted or heat softened.
  • heat-fusible material spray guns of the gas blast type usually includes a combustible-gas nozzle or burner tip which is provided with a material feeding conduit and a multiple number of combustible-gas jets, substantially surrounding the axis of the feeding conduit, and a blast gas nozzle surrounding the combustible-gas nozzle and the feeding conduit.
  • the blast gas nozzle and the combustible-gas nozzle are mounted on a portion of the gun construction known as the gas head.
  • Both the combustible and the blast gases pass through this head to the nozzle.
  • a gas head may be either an integral part of the gun construction involving the material feeding mechanism or it may be a separate part of the gun. In either case, the gas head is the part of the gun assem bly upon which the blast gas nozzle and the combustible-gas nozzle are mounted. It is to such construction that this invention primarily relates.
  • Spray guns of the above described type are Well known for the spraying of metal, and for convenience the following description is made in connection with metal spray gun constructions, it being understood that the principles of the invention are applicable to constructions using other heat-fusible materials as, for instance, plastics.
  • One type of spray gun of the gas blast type which has been hitherto used involves construction in which some part or parts of the gas head have been separate removable pieces, and in which the passages for the combustible-gas and the combustion supporting gas have existed, at least in part, in grooves or channels in such removable parts. In these, a portion of the head is removable from the remainder of the gas head. This construction has permitted grooving and drilling the removable section, and drilling and, if desired, grooving the remaining portion of the gas head so as to produce practically any desired arrangement of mixing chambers, mixing jets, and syphon jets and Venturi tube combinations.
  • a further disadvantage of these gas head constructions involving tapered seats and metallic packings is that the metallic packings do not permit ready disassembly for cleaning and reassembly by the operator.
  • metallic packings such as copper packings, must be deformed each time they are tightened in place; and hence they make removal of the parts difiicult and usually require replacement of the packing upon each reassembly.
  • Such packings are also dangerous in that they are subject to improper sealing and hence subject to leaks.
  • One object of this invention comprises, inter alia, a heat-fusible material spray gun of the gas blast type construction which overcomes the foregoing and other disadvantages.
  • a further object of this invention is a heatfusible material gas blast spray gun with a gas head construction comprising a removable portion and a remaining portion of such gas head which overcomes the foregoing and other disadvantages.
  • Another object of this invention is a gas blast gun gas head construction comprising a removable portion and a remaining portion of such head which seals adequately and quickly between the two said portions, and which avoids the use of tapered seats and metallic packings.
  • Still another object of the invention is a spray gun gas head construction of the type referred to in which the removable portion of said gas head is readil removable by the operator.
  • Fig. 1 is a central section taken longitudinally through the gas head part of a gas blast gun in accordance with my invention
  • Fig. 2 represents a section through the part of the gas blast gun shown in Fig. 1 in the plane IIII;
  • Fig. 3 is another section of the part of the gas blast gun shown in Fig. 1 taken from the plane III-III;
  • Fig. 4 is another section of the part of the gas blast gun shown in Fig. 1 taken from the plane IV-IV.
  • numeral I designates a removable gas head seat which in this construction is a removable portion of the gas head.
  • the remaining, or fixed portion of the gas head is designated by numeral 2.
  • Gas head seat portion I has a cylindrical outer surface at 3 which fits the cylindrical bore of the fixed portion of the gas head 2. The fit between these two cylindrical surfaces is a free or sliding fit with a very small amount of clearance between these surfaces at 3.
  • Gas head seat portion I has a longitudinal hole 4 through its center which constitutes a conduit for the material being fed to the nozzle end of the gun for spraying.
  • the material being fed to the flame is in the form of a rod or wire 5.
  • annular grooves 6, I, and 8 On the outer periphery of gas head seat portion I are three annular grooves, 6, I, and 8, respectively. Mounted in these annular grooves are three annular resilient packing rings, 8a, 9 and I0, respectively. These rings have a section parallel to the ring axis which is normall circular when the rings are in a relaxed position.
  • the annular grooves 6, I and 8 are so proportioned, however, that when these resilient rings 8a, 9 and II! are in position in the grooves, they are compressed to an oval shape between the bottom of the grooves and the cylindrical bore of the fixed portion of the gas head 2.
  • the gas head seat portion I has a large annular groove I I. It also has an annular groove I2 which extends into a narrower annular portion at I3.
  • a multiple number of relatively small jets or passages I4 are provided in gas head seat portion I extending parallel to the axis of seat portion I from annular groove I I to annular groove portion I3.
  • Passages I5 extend in gas head seat I and parallel to the axis thereof from annular groove portion I3 to the forward end I6 of said gas head seat.
  • passages I5 There are the same number of passages I5 as there are jets I4, and each passage I5 is in line with a corresponding passage I4.
  • Combustible-gas nozzle I! is mounted on gas head seat I at its end I6.
  • Nozzle I1 is provided with a multiple number of jets or passages I8 which lead from end to end of said nozzle and which converge toward the flame end.
  • Nozzle I1 is provided with an annular groove I9 at its base or seat where it contacts gas head seat I at I8.
  • Nozzle I1 is also provided with a relatively hard bushing 20, permanently mounted in a central longitudinal hole 2 I. Hole 2! acts as a conduit for wire material 5, and bushing 2! acts as a guide for such wire.
  • the number of jets I8 may, if desired, correspond to the number of passages I5, or may be some other number. If desired, jets I6 may correspond in number to passages I5 and may also be 50 located that the entrance end of each jet I8 is in direct alignment with each corresponding passage I5. If desired, means may be provided (not shown in the illustrations) for locating nozzle IT, with respect to gas head seat I, so that such jet and gas passage alignment be assured. Such alignment is not necessary, however, but in the event that such alignment is not provided for, then annular groove I9 must be sufiiciently large to provide for proper distribution of gas flowing from passages I5 to jets I8.
  • a threaded plug 22 which is threaded into fixed gas head. portion 2 at threads 23. Plug 22 shoulders tightly against shoulder 24. A multiple number of holes 25 are provided in plug 22 to permit the use of a spanner wrench for tightening or loosening this plug.
  • wire guide tube 26 Centrally mounted in plug 22 is wire guide tube 26.
  • a threaded clamping tube 21 is provided which threads directly into fixed gas head portion 2 at threads 28.
  • This clamping tube is provided with a shoulder 29 which clamps directly to the shoulder of combustible-gas nozzle I I.
  • Clamping tube 2! is provided with a hexagon external shape to fit a wrench.
  • clamping tube 21 When clamping tube 21 is tightened in place it clamps nozzle I'I tightly against face I6 of gas head seat portion I and simultaneously clamps gas head seat portion I firmly against plug 22 which forms a solid bottom or seat at the end 01' the cylindrical bore in fixed gas head portion 2.
  • Blast gas nozzle 30 is constructed with a conical internal bore which is spaced apart from the conical external surface of nozzle I! to form a conical passage 3!.
  • Nozzle 39 has an extended external cylindrical portion 32 which fits into a corresponding bore 33 in clamping sleeve 27. The end of nozzle 30 seats against shoulder 34 in clamping sleeve 21.
  • Blast gas nozzle clamping ring 35 is threaded on to fixed gas head portion 2 at threads 36' and clamps nozzle 30 in place by pressing against shoulder 3! of nozzle 30.
  • Gas space 38 is formed between clamping ring 35 and fixed portion of the gas head 2.
  • a multiple number of radial holes 39 are provided in clamping tube 21 extendin radially therethrough at the point where shoulder 34 is provided therein.
  • Slight annular grooves 40 and 4] are provided in the bore of fixed gas head portion 2 and are so located longitudinally that they are in line with annular grooves H and I2, respectively.
  • a gas passage 42 is provided in fixed gas head portion 2 leading from a source of combustion supporting gas (not shown) to annular groove 40.
  • Gas passage 43 is provided in fixed gas head portion 2 leading from a source of combustible-gas (not shown) to annular groove 4
  • Gas passage 44 is provided in fixed gas head portion 2 lead- T ing from a source of blast gas (not shown) to gas chamber 38.
  • the material to be sprayed is fed progressively in the form of a wire through wire guide tube 26, wire conduit 4, wire conduit 2
  • a combustible gas such as acetylene is fed into passage 43 whence it flows into and fills annular groove 12 and the extension l3 thereof.
  • a combustion supporting gas such as oxygen is fed into passage 42 from whence it flows into and fills annular groove H. From annular groove II, the combustion supporting gas flows through the multiple jets l4 across annular groove portion l3 and into passages I5. As combustion supporting gas flows across groove portion l 3 it draws with it combustible-gas which also enters passages I5.
  • Both these gases are mixed as they flow through passages l5, forming a gas mixture of combustible-gas and combustion supporting gas.
  • This gas mixture flows from passages i5, through a portion of annular groove is and into jets I8, from whence it emerges at the end of nozzle I! to burn and form the necessary heating zone.
  • Compressed blast gas such as air
  • passage 44 Compressed blast gas, such as air
  • Compressed blast gas is fed into passage 44 from whence it flows into chamber 38, through multiple holes 39, and thence into conical space 3!, where it emerges at the end of nozzle I! in the form of a cone of blast gas exterior to and surrounding the flame.
  • the blast gas continues to flow it emerges from the end of blast gas nozzle 39 and converges upon the flame surrounding the end of the wire 5 at its heated tip with sufilcient force to atomize the heat softened material of said wire and to propel the atomized particles of material to the surface being sprayed.
  • the resilient packing rings 8a, 9 and ID are preferably made of a synthetic rubber such as neoprene.
  • are provided so that these rings will slide easily past the port ends of the passages 42 and 43 when assembling or disassembling.
  • the very slight space or clearance between the cylindrical outer surface 3 of gas head seat 1 and the corresponding bore of fixed gas head portion 2 is made as small as is practical but still permit easy sliding of the seat member within the bore. This very small clearance is maintained so that only a very small amount of gas could leak across between the cylindrical portions of the seat plug l and the bore.
  • Another advantage of the construction in accordance with the invention is the fact that flash back can occur and the burning may continue inside the gas head for a considerable time without causing serious damage to the equipment. In no case will any serious warpage of th metal parts occur which will prevent proper sealing since the final sealing is by means of the resilient packing rings. In fact, the fire may burn inside the gas head for some little time without damaging these rings due to the high rate of heat conductance of the metal in the gas head. Even if the rings are eventually damaged they may be easily and quickly replaced and are by their nature inexpensive.
  • my invention applies broadly to gun construction for gas blast spraying heat fusible materials and preferably metal, and essentially comprises the improvement therein of a gas head for said gun having a first portion with a substantially cylindrical bore surface and a second portion with a substantially cylindrical outer surface substantially fitting said bore surface, first gas duct means for combustible gas and, second gas duct means for combustion supporting gas in each of said first and second portions, each of said duct means terminating at one of said surfaces with said first duct means in said first and second portions in gas passing registry with each other and said second duct means in said first and second portions in gas passing registry with each other, at least one annular groove on at least one of said surfaces between the terminal portions of said first and second gas duct means thereon, at least one resilient packing means in said groove compressed therein between said first and second portions, and. means for removably holding said second portion in substantially fixed gas duct registry position with said first portion.
  • annular grooves for holding the packing means and preferably resilient packing rings of, for instance, synthetic rubber may be cut into the bore of fixed gas head portion 2 or into the external surface of gas head seat portion I, or, may be out part way into each of these surfaces. Within the preferred embodiment of the invention shown, however, it is preferred to cut the grooves into the external surface of gas head seat portion I.
  • the removable gas head seat portion I is made of a single piece in the preferred embodiment of this invention and is so illustrated in the figures. If desired, such as for convenience of manufacture, it may be made in two or more pieces within the scope of this invention.
  • Improvement in gun construction for gas blast spraying heat fusible materials comprising a gas head for said gun having a first portion with a substantially cylindrical bore surface and a second portion with a substantially cylindrical outer surface substantially fitting said bore surface, first gas duct means for combustible gas and second gas duct means for combustion supporting gas in each of said first and second portions, each of said duct means terminating at one of said surfaces with said first duct means in said first and second portions in gas passing registry with each other and said second duct means in said first and second portions in gas passing registry with each other, at least one annular groove on at least one of said surfaces between the terminal portions of said first and second gas duct means thereon, at least one resilient packing means in said groove compressed therein between said first and second portions, and means for removably locking said second portion in substantially fixed gas duct registry position with said first portion.
  • said packing means are at least one packing ring for each of said grooves.
  • Improvement in gun construction for gas blast spraying heat fusible materials comprising a gas head for said gun having a first portion with a substantially cylindrical bore surface and a second portion with a substantially cylindrical outer surface substantially fitting said bore surface, first gas duct means for combustible gas and second gas duct means for combustion supporting gas in each of said first and second portions, each of said duct means terminating at one of said surfaces with said first duct means in said first and second portions in gas passing registry with each other and said second duct means in said first and second portions in gas passing registry with each other, at least one annular groove on at least one of said surfaces between the terminal portions of said first and second gas duct means thereon, at least one resilient packing means in said groove compressed therein between said first and second portions, additional annular grooves on at least one of said surfaces, each having at least one of said packing rings therein and at least one of said additional grooves and rings being positioned between each end of said second portion and the thereto nearest terminal gas duct portion thereon, combustible gas jet ducts in said
  • packing means are at least one packing ring of synthetic rubber for each of said grooves.
  • said second portion and said nozzle define a heat fusible material feeding conduit
  • said stop means substantially define a plug carrying a wire feed bushing adjacent said second portion in registry with said feed conduit, and in which said bushing is slidable in the direction of said second portion and secured against mo tion away from said second portion.
  • packing means are at least one packing ring of synthetic rubber for each of said grooves.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Gas Burners (AREA)
US64006A 1948-12-07 1948-12-07 Gun construction for gas blast spraying heat-fusible materials Expired - Lifetime US2659623A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US64006A US2659623A (en) 1948-12-07 1948-12-07 Gun construction for gas blast spraying heat-fusible materials
GB17978/49A GB643569A (en) 1948-12-07 1949-07-07 Construction of gun for spraying heat-fusible materials
FR990982D FR990982A (fr) 1948-12-07 1949-07-19 Pistolet à jet de gaz pour projection de matières fusibles
DEP52119A DE808521C (de) 1948-12-07 1949-08-16 Metallspritzpistole

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US64006A US2659623A (en) 1948-12-07 1948-12-07 Gun construction for gas blast spraying heat-fusible materials

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DE (1) DE808521C (fr)
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GB (1) GB643569A (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2759531A (en) * 1951-04-06 1956-08-21 Union Carbide & Carbon Corp Gas mixing apparatus for blowpipes
US2861900A (en) * 1955-05-02 1958-11-25 Union Carbide Corp Jet plating of high melting point materials
US2920001A (en) * 1955-07-11 1960-01-05 Union Carbide Corp Jet flame spraying method and apparatus
US3095264A (en) * 1963-06-25 Device for aspirating and heating a liquid fumigant
US3122321A (en) * 1960-07-08 1964-02-25 Metco Inc Flame spray gun nozzle extension
US3190559A (en) * 1962-01-16 1965-06-22 Metco Inc Flame spray construction
US4325512A (en) * 1980-02-04 1982-04-20 Norton Company Flame spray gun
EP0341672A1 (fr) * 1988-05-11 1989-11-15 The Perkin-Elmer Corporation Pistolet-pulvérisateur à chaud à haute vitesse et méthode
EP0379119A1 (fr) * 1989-01-17 1990-07-25 The Perkin-Elmer Corporation Pulvérisateur thermique à écran et méthode
EP0377452A3 (fr) * 1989-01-04 1991-05-02 The Perkin-Elmer Corporation Méthode de pulvérisation thermique pour la production de noyaux pour le moulage de verre
EP0375931A3 (fr) * 1988-12-28 1991-10-30 Sulzer Metco (US) Inc. Procédé de pulvérisation de matériaux non fusibles par projection à grande vitesse des particules
US11059099B1 (en) 2014-03-11 2021-07-13 Tekna Plasma Systems Inc. Process and apparatus for producing powder particles by atomization of a feed material in the form of an elongated member

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2117275B (en) * 1982-03-26 1986-03-12 Hayden Nilos Conflow Ltd Liquid spray head

Citations (14)

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Publication number Priority date Publication date Assignee Title
US976717A (en) * 1910-04-27 1910-11-22 Newton J Anderson Torch.
US1118215A (en) * 1914-02-26 1914-11-24 William A Mossman Welding-torch.
US1310106A (en) * 1919-07-15 Bichabd f
US1414454A (en) * 1920-06-10 1922-05-02 William P Brown Mixer for welding torches
US1564363A (en) * 1925-03-21 1925-12-08 Welders Supply & Mfg Co Torch tip
US1958044A (en) * 1930-12-08 1934-05-08 Edward H Hendricks Torch for removing defects from billets
US2176813A (en) * 1937-11-08 1939-10-17 George L Hammon Welding implement
US2196647A (en) * 1932-03-24 1940-04-09 William J Wesseler Material fusing and projecting apparatus
US2227753A (en) * 1938-10-14 1941-01-07 Herbert S Ingham Metal spray gun
US2231199A (en) * 1937-12-20 1941-02-11 Smith Welding Equipment Corp Torch
US2258340A (en) * 1939-08-11 1941-10-07 Smith Welding Equipment Corp Cutting torch
US2397165A (en) * 1943-10-25 1946-03-26 Metallizing Engineering Co Inc Gun construction for gas blast spraying heat-fusible materials
US2483312A (en) * 1944-08-02 1949-09-27 Bendix Aviat Corp Valve
US2539487A (en) * 1948-04-13 1951-01-30 Metallizing Engineering Co Inc Gun construction for blast gas spraying heat fusible materials

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1310106A (en) * 1919-07-15 Bichabd f
US976717A (en) * 1910-04-27 1910-11-22 Newton J Anderson Torch.
US1118215A (en) * 1914-02-26 1914-11-24 William A Mossman Welding-torch.
US1414454A (en) * 1920-06-10 1922-05-02 William P Brown Mixer for welding torches
US1564363A (en) * 1925-03-21 1925-12-08 Welders Supply & Mfg Co Torch tip
US1958044A (en) * 1930-12-08 1934-05-08 Edward H Hendricks Torch for removing defects from billets
US2196647A (en) * 1932-03-24 1940-04-09 William J Wesseler Material fusing and projecting apparatus
US2176813A (en) * 1937-11-08 1939-10-17 George L Hammon Welding implement
US2231199A (en) * 1937-12-20 1941-02-11 Smith Welding Equipment Corp Torch
US2227753A (en) * 1938-10-14 1941-01-07 Herbert S Ingham Metal spray gun
US2258340A (en) * 1939-08-11 1941-10-07 Smith Welding Equipment Corp Cutting torch
US2397165A (en) * 1943-10-25 1946-03-26 Metallizing Engineering Co Inc Gun construction for gas blast spraying heat-fusible materials
US2483312A (en) * 1944-08-02 1949-09-27 Bendix Aviat Corp Valve
US2539487A (en) * 1948-04-13 1951-01-30 Metallizing Engineering Co Inc Gun construction for blast gas spraying heat fusible materials

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3095264A (en) * 1963-06-25 Device for aspirating and heating a liquid fumigant
US2759531A (en) * 1951-04-06 1956-08-21 Union Carbide & Carbon Corp Gas mixing apparatus for blowpipes
US2861900A (en) * 1955-05-02 1958-11-25 Union Carbide Corp Jet plating of high melting point materials
US2920001A (en) * 1955-07-11 1960-01-05 Union Carbide Corp Jet flame spraying method and apparatus
US3122321A (en) * 1960-07-08 1964-02-25 Metco Inc Flame spray gun nozzle extension
US3190559A (en) * 1962-01-16 1965-06-22 Metco Inc Flame spray construction
US4325512A (en) * 1980-02-04 1982-04-20 Norton Company Flame spray gun
JP2783289B2 (ja) 1988-05-11 1998-08-06 ザ・パーキン‐エルマー・コーポレイシヨン 高速粉末熱スプレーガンおよび方法
EP0341672A1 (fr) * 1988-05-11 1989-11-15 The Perkin-Elmer Corporation Pistolet-pulvérisateur à chaud à haute vitesse et méthode
EP0375931A3 (fr) * 1988-12-28 1991-10-30 Sulzer Metco (US) Inc. Procédé de pulvérisation de matériaux non fusibles par projection à grande vitesse des particules
EP0377452A3 (fr) * 1989-01-04 1991-05-02 The Perkin-Elmer Corporation Méthode de pulvérisation thermique pour la production de noyaux pour le moulage de verre
EP0379119A1 (fr) * 1989-01-17 1990-07-25 The Perkin-Elmer Corporation Pulvérisateur thermique à écran et méthode
US4964568A (en) * 1989-01-17 1990-10-23 The Perkin-Elmer Corporation Shrouded thermal spray gun and method
US11059099B1 (en) 2014-03-11 2021-07-13 Tekna Plasma Systems Inc. Process and apparatus for producing powder particles by atomization of a feed material in the form of an elongated member
US11110515B2 (en) 2014-03-11 2021-09-07 Tekna Plasma Systems Inc. Process and apparatus for producing powder particles by atomization of a feed material in the form of an elongated member
US11565319B2 (en) 2014-03-11 2023-01-31 Tekna Plasma Systems Inc. Process and apparatus for producing powder particles by atomization of a feed material in the form of an elongated member
US11638958B2 (en) 2014-03-11 2023-05-02 Tekna Plasma Systems Inc. Process and apparatus for producing powder particles by atomization of a feed material in the form of an elongated member
US11951549B2 (en) 2014-03-11 2024-04-09 Tekna Plasma Systems Inc. Process and apparatus for producing powder particles by atomization of a feed material in the form of an elongated member

Also Published As

Publication number Publication date
DE808521C (de) 1951-07-16
GB643569A (en) 1950-09-20
FR990982A (fr) 1951-09-28

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