US3619549A - Arc torch cutting process - Google Patents
Arc torch cutting process Download PDFInfo
- Publication number
- US3619549A US3619549A US47840A US3619549DA US3619549A US 3619549 A US3619549 A US 3619549A US 47840 A US47840 A US 47840A US 3619549D A US3619549D A US 3619549DA US 3619549 A US3619549 A US 3619549A
- Authority
- US
- United States
- Prior art keywords
- arc
- gas
- liquid
- nozzle
- flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
- H05H1/26—Plasma torches
- H05H1/32—Plasma torches using an arc
- H05H1/34—Details, e.g. electrodes, nozzles
- H05H1/3405—Arrangements for stabilising or constricting the arc, e.g. by an additional gas flow
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K10/00—Welding or cutting by means of a plasma
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/013—Arc cutting, gouging, scarfing or desurfacing
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
- H05H1/26—Plasma torches
- H05H1/32—Plasma torches using an arc
- H05H1/34—Details, e.g. electrodes, nozzles
- H05H1/3468—Vortex generators
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
- H05H1/26—Plasma torches
- H05H1/32—Plasma torches using an arc
- H05H1/34—Details, e.g. electrodes, nozzles
- H05H1/3421—Transferred arc or pilot arc mode
Definitions
- Terminello ABSTRACT High quality, square cuts are obtained in metals Y by an arc process wherein an arc is struck between an elec- [541 g g gf PROCESS trode and workpiece, a gas vortex is passed around the elec- 8 trode and is directed into a constricting nozzle passage where [52] U.S. Cl 219/121 P a liquid, usually water, vortex swirling in the same direction as [51] Int. Cl 323k 9/00 the gas vortex is introduced. The arc passes through the gas [50] and liquid vortex and through the nozzle and is directed in a Field ofSearch ..2l9/75, 121
- This invention relates to a process for cutting metals. More particularly this invention relates to a process for cutting metals with an arc constricted in a nozzle.
- Another object of the invention is to provide a cutting process which produces high quality cuts with essentially no dross and a minimum heat affected zone.
- a further object is to provide an improved arc process for removing metal from a workpiece.
- Another object is to provide a simple process for producing high quality cuts at high speed.
- FIG. la, b and c are photographs of cuts made in 56-inch stainless steel with presently known constricted are cutting techniques
- FIG. 2a, b and c are photographs of cuts made in 54-inch stainless steel with the present invention.
- FIG. 3a, b and c are photographs of cuts made in r-inch stainless steel with a nozzle having a 4/32-inch diameter constricting passage by prior art cutting techniques;
- FIG. 4a, b and c are similar to FIG. 3a, b and c with the exception that a nozzle was used having a 5/32-inch diameter constricting passage;
- FIG. 5a, b and c are photographs of cuts made in -inch stainless steel using the techniques of the present invention and a 5/32-inch diameter constricting passage;
- FIG. 6a, b and c are photographs of cuts made in l-inc stainless steel with prior art techniques;
- FIG. 7a, b of cuts made in I-inch stainless steel with the techniques of the present invention
- FIG. 8 is a schematic diagram of a typical device for practicing the present invention.
- the invention resides in a process for removing metal by establishing an arc between an electrode and a workpiece.
- a vortical flow of gas is introduced around the arc.
- a vortical flow of liquid having the same direction as the vortical flow of gas is introduced around the flow of gas and the arc.
- the arc, gas and liquid are then passed through a nozzle and against a workpiece to remove metal from the workpiece.
- One of the major advantages of the present invention is that not only is better cut quality achieved even over the best cuts now obtainable, but they are achieved with a much simpler process at cutting speeds much higher than speeds now obtainable with the best high quality plasma cutting techniques.
- the invention is predicated on the discovery that the coexistence in an arc constricting passage containing both a gas vortical flow and liquid vortical flow having the same direction of swirl will produce unexpectedly high quality cuts in metals.
- an arc torch is shown at T.
- the torch T is connected on one side to a power supply P.
- the other side of the power source is connected to the work.
- the torch shown diagrammatically, includes a nonconsumable electrode 1.
- Such electrode may be, for example, a tungsten electrode or a thoriated tungsten electrode.
- a nonconsumable electrode 1 is in axial alignment with the center passage 7 in the nozzle N.
- the nozzle N is provided with tangential fluid injection ports 3. In the preferred embodiment, four tangential ports are provided.
- injection ports may be used without departing from the spirit and scope of this invention.
- Other liquids may be used as the fluid; however, water is preferred.
- the water enters the torch through the injection ports 3 and achieves vortical flow in the chamber 5.
- the chamber 5 has an annular outlet 6 in the center passage 7. The vortical flow of liquid leaves the ample, in R. M. Gages US. Pat. No. 2,862,099, issued Nov. 25, 1958.
- the center passage 7 provides arc constriction as taught by Gage.
- the nozzle passage 7 is large enough (five thirty-seconds inch) so as to minimize the possibility of a double arc situation in the current range of up to about 400 amps.
- the arc is further constricted by the vortical flow of liquid from the chamber 5.
- the equivalent of a smaller nozzle passage is achieved while minimizing the danger of destroying the nozzle.
- Table 1 summarizes examples of the invention which produced cuts of the quality shown in the photographs.
- nitrogen is the gas utilized; however, it should be understood that the gas is not critical except that it should be compatible with the material being cut.
- water is preferred to form the constricting fluid vortex since it is obviously the most accessible and cheap liquid to use, other liquids might be used.
- Water is the preferred liquid because in practice, as will be noted from the photographs, cuts made with water exhibit essentially no heat affected zone and little or no dross on most materials. Also, water minimizes surface discoloration caused by excessive heat normally generated by the arc.
Abstract
Description
Claims (6)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US4784070A | 1970-06-19 | 1970-06-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3619549A true US3619549A (en) | 1971-11-09 |
Family
ID=21951277
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US47840A Expired - Lifetime US3619549A (en) | 1970-06-19 | 1970-06-19 | Arc torch cutting process |
Country Status (12)
Country | Link |
---|---|
US (1) | US3619549A (en) |
JP (2) | JPS5431983B1 (en) |
AT (1) | AT316275B (en) |
BE (1) | BE768745A (en) |
CA (1) | CA927740A (en) |
CH (1) | CH528326A (en) |
DE (1) | DE2130394B2 (en) |
ES (1) | ES392393A1 (en) |
FR (1) | FR2099260A5 (en) |
GB (1) | GB1326128A (en) |
NL (1) | NL156567B (en) |
ZA (1) | ZA712540B (en) |
Cited By (48)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3720598A (en) * | 1970-12-31 | 1973-03-13 | Ibm | Cryogenic arc furnace and method of forming materials |
US3833787A (en) * | 1972-06-12 | 1974-09-03 | Hypotherm Inc | Plasma jet cutting torch having reduced noise generating characteristics |
US3851864A (en) * | 1973-06-26 | 1974-12-03 | Lukens Steel Co | Apparatus and process for suppression of noise and fumes generated by plasma-arc cutting operation |
US4058698A (en) * | 1974-04-02 | 1977-11-15 | David Grigorievich Bykhovsky | Method and apparatus for DC reverse polarity plasma-arc working of electrically conductive materials |
US4291217A (en) * | 1978-09-30 | 1981-09-22 | Messer Griesheim | Process for underwater plasma cutting of workpieces |
US4311897A (en) * | 1979-08-28 | 1982-01-19 | Union Carbide Corporation | Plasma arc torch and nozzle assembly |
US4338509A (en) * | 1980-04-25 | 1982-07-06 | Vysoka Skola Chemicko-Technologicka | Process of and apparatus for producing a homogeneous radially confined plasma stream |
US4791268A (en) * | 1987-01-30 | 1988-12-13 | Hypertherm, Inc. | Arc plasma torch and method using contact starting |
US4816637A (en) * | 1985-11-25 | 1989-03-28 | Hypertherm, Inc. | Underwater and above-water plasma arc cutting torch and method |
US4902871A (en) * | 1987-01-30 | 1990-02-20 | Hypertherm, Inc. | Apparatus and process for cooling a plasma arc electrode |
US5124525A (en) * | 1991-08-27 | 1992-06-23 | Esab Welding Products, Inc. | Plasma arc torch having improved nozzle assembly |
US5164568A (en) * | 1989-10-20 | 1992-11-17 | Hypertherm, Inc. | Nozzle for a plasma arc torch having an angled inner surface to facilitate and control arc ignition |
US5194715A (en) * | 1991-11-27 | 1993-03-16 | Esab Welding Products, Inc. | Plasma arc torch used in underwater cutting |
US5208441A (en) * | 1991-04-29 | 1993-05-04 | Century Manufacturing Co. | Plasma arc ignition system |
US5380976A (en) * | 1992-12-11 | 1995-01-10 | Hypertherm, Inc. | Process for high quality plasma arc and laser cutting of stainless steel and aluminum |
US5414236A (en) * | 1992-12-11 | 1995-05-09 | Hypertherm, Inc. | Process for high quality plasma arc cutting of stainless steel and aluminum |
US5416296A (en) * | 1994-03-11 | 1995-05-16 | American Torch Tip Company | Electrode for plasma arc torch |
US6054669A (en) * | 1998-05-20 | 2000-04-25 | The Esab Group, Inc. | Plasma marking torch and method of operating same |
AT406559B (en) * | 1998-01-23 | 2000-06-26 | Fronius Schweissmasch | BURNER FOR CUTTING PROCESS |
US6163009A (en) * | 1998-10-23 | 2000-12-19 | Innerlogic, Inc. | Process for operating a plasma arc torch |
US6326583B1 (en) | 2000-03-31 | 2001-12-04 | Innerlogic, Inc. | Gas control system for a plasma arc torch |
US6498317B2 (en) | 1998-10-23 | 2002-12-24 | Innerlogic, Inc. | Process for operating a plasma arc torch |
US6677551B2 (en) | 1998-10-23 | 2004-01-13 | Innerlogic, Inc. | Process for operating a plasma arc torch |
US6841754B2 (en) | 2001-03-09 | 2005-01-11 | Hypertherm, Inc. | Composite electrode for a plasma arc torch |
US20050258151A1 (en) * | 2004-05-18 | 2005-11-24 | The Esab Group, Inc. | Plasma arc torch |
US20090200032A1 (en) * | 2007-10-16 | 2009-08-13 | Foret Plasma Labs, Llc | System, method and apparatus for creating an electrical glow discharge |
US20090206721A1 (en) * | 2007-10-16 | 2009-08-20 | Foret Plasma Labs, Llc | System, method and apparatus for coupling a solid oxide high temperature electrolysis glow discharge cell to a plasma arc torch |
US8785808B2 (en) | 2001-07-16 | 2014-07-22 | Foret Plasma Labs, Llc | Plasma whirl reactor apparatus and methods of use |
US8810122B2 (en) | 2007-10-16 | 2014-08-19 | Foret Plasma Labs, Llc | Plasma arc torch having multiple operating modes |
US8833054B2 (en) | 2008-02-12 | 2014-09-16 | Foret Plasma Labs, Llc | System, method and apparatus for lean combustion with plasma from an electrical arc |
US8904749B2 (en) | 2008-02-12 | 2014-12-09 | Foret Plasma Labs, Llc | Inductively coupled plasma arc device |
US9185787B2 (en) | 2007-10-16 | 2015-11-10 | Foret Plasma Labs, Llc | High temperature electrolysis glow discharge device |
US9230777B2 (en) | 2007-10-16 | 2016-01-05 | Foret Plasma Labs, Llc | Water/wastewater recycle and reuse with plasma, activated carbon and energy system |
US9445488B2 (en) | 2007-10-16 | 2016-09-13 | Foret Plasma Labs, Llc | Plasma whirl reactor apparatus and methods of use |
US9499443B2 (en) | 2012-12-11 | 2016-11-22 | Foret Plasma Labs, Llc | Apparatus and method for sintering proppants |
US9516736B2 (en) | 2007-10-16 | 2016-12-06 | Foret Plasma Labs, Llc | System, method and apparatus for recovering mining fluids from mining byproducts |
US9560731B2 (en) | 2007-10-16 | 2017-01-31 | Foret Plasma Labs, Llc | System, method and apparatus for an inductively coupled plasma Arc Whirl filter press |
US9560732B2 (en) | 2006-09-13 | 2017-01-31 | Hypertherm, Inc. | High access consumables for a plasma arc cutting system |
US9662747B2 (en) | 2006-09-13 | 2017-05-30 | Hypertherm, Inc. | Composite consumables for a plasma arc torch |
US9699879B2 (en) | 2013-03-12 | 2017-07-04 | Foret Plasma Labs, Llc | Apparatus and method for sintering proppants |
US9761413B2 (en) | 2007-10-16 | 2017-09-12 | Foret Plasma Labs, Llc | High temperature electrolysis glow discharge device |
US9949356B2 (en) | 2012-07-11 | 2018-04-17 | Lincoln Global, Inc. | Electrode for a plasma arc cutting torch |
US10098217B2 (en) | 2012-07-19 | 2018-10-09 | Hypertherm, Inc. | Composite consumables for a plasma arc torch |
US10194516B2 (en) | 2006-09-13 | 2019-01-29 | Hypertherm, Inc. | High access consumables for a plasma arc cutting system |
US10244614B2 (en) | 2008-02-12 | 2019-03-26 | Foret Plasma Labs, Llc | System, method and apparatus for plasma arc welding ceramics and sapphire |
US10267106B2 (en) | 2007-10-16 | 2019-04-23 | Foret Plasma Labs, Llc | System, method and apparatus for treating mining byproducts |
US10368557B2 (en) | 2001-07-16 | 2019-08-06 | Foret Plasma Labs, Llc | Apparatus for treating a substance with wave energy from an electrical arc and a second source |
US11806686B2 (en) | 2007-10-16 | 2023-11-07 | Foret Plasma Labs, Llc | System, method and apparatus for creating an electrical glow discharge |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2640506C3 (en) * | 1976-09-09 | 1981-01-22 | Messer Griesheim Gmbh, 6000 Frankfurt | Gas mixture for the production of beard-free separating cuts during plasma cutting |
FR2370534A1 (en) * | 1976-11-10 | 1978-06-09 | Secim | REVERSE SPINNING PRESS |
DE3050798C2 (en) * | 1979-08-28 | 1984-10-31 | Union Carbide Corp | Plasma burner using transferred arc - esp. for high speed cutting of thick metal plates, has arc constricting channels of defined related length |
FR2545024B1 (en) * | 1983-04-28 | 1985-08-23 | Delattre Levivier | TUBE PLASMA CUTTING METHOD AND MACHINE |
JPS60227920A (en) * | 1984-04-25 | 1985-11-13 | Kobe Steel Ltd | Indirect extruding method of tubular product |
DE3574833D1 (en) * | 1984-04-20 | 1990-01-25 | Kobe Steel Ltd | INDIRECT EXTRUSION METHOD AND DEVICE. |
CA1261927A (en) * | 1985-11-25 | 1989-09-26 | Hypertherm, Inc. | Underwater and above-water plasma arc cutting torch and method |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2906858A (en) * | 1957-10-10 | 1959-09-29 | Union Carbide Corp | Liquid vortex arc torch process |
US3149222A (en) * | 1962-08-21 | 1964-09-15 | Giannini Scient Corp | Electrical plasma-jet apparatus and method incorporating multiple electrodes |
US3534388A (en) * | 1968-03-13 | 1970-10-13 | Hitachi Ltd | Plasma jet cutting process |
-
1970
- 1970-06-19 US US47840A patent/US3619549A/en not_active Expired - Lifetime
-
1971
- 1971-04-20 ZA ZA712540A patent/ZA712540B/en unknown
- 1971-05-06 CA CA112296A patent/CA927740A/en not_active Expired
- 1971-06-18 ES ES392393A patent/ES392393A1/en not_active Expired
- 1971-06-18 NL NL7108433.A patent/NL156567B/en unknown
- 1971-06-18 FR FR7122381A patent/FR2099260A5/fr not_active Expired
- 1971-06-18 JP JP4340771A patent/JPS5431983B1/ja active Pending
- 1971-06-18 AT AT528271A patent/AT316275B/en active
- 1971-06-18 GB GB2859371A patent/GB1326128A/en not_active Expired
- 1971-06-18 DE DE19712130394 patent/DE2130394B2/en not_active Withdrawn
- 1971-06-18 CH CH893771A patent/CH528326A/en not_active IP Right Cessation
- 1971-06-18 BE BE768745A patent/BE768745A/en unknown
-
1976
- 1976-06-09 JP JP51066629A patent/JPS52752A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2906858A (en) * | 1957-10-10 | 1959-09-29 | Union Carbide Corp | Liquid vortex arc torch process |
US3149222A (en) * | 1962-08-21 | 1964-09-15 | Giannini Scient Corp | Electrical plasma-jet apparatus and method incorporating multiple electrodes |
US3534388A (en) * | 1968-03-13 | 1970-10-13 | Hitachi Ltd | Plasma jet cutting process |
Cited By (78)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3720598A (en) * | 1970-12-31 | 1973-03-13 | Ibm | Cryogenic arc furnace and method of forming materials |
US3833787A (en) * | 1972-06-12 | 1974-09-03 | Hypotherm Inc | Plasma jet cutting torch having reduced noise generating characteristics |
US3851864A (en) * | 1973-06-26 | 1974-12-03 | Lukens Steel Co | Apparatus and process for suppression of noise and fumes generated by plasma-arc cutting operation |
US4058698A (en) * | 1974-04-02 | 1977-11-15 | David Grigorievich Bykhovsky | Method and apparatus for DC reverse polarity plasma-arc working of electrically conductive materials |
US4291217A (en) * | 1978-09-30 | 1981-09-22 | Messer Griesheim | Process for underwater plasma cutting of workpieces |
US4311897A (en) * | 1979-08-28 | 1982-01-19 | Union Carbide Corporation | Plasma arc torch and nozzle assembly |
US4338509A (en) * | 1980-04-25 | 1982-07-06 | Vysoka Skola Chemicko-Technologicka | Process of and apparatus for producing a homogeneous radially confined plasma stream |
US4816637A (en) * | 1985-11-25 | 1989-03-28 | Hypertherm, Inc. | Underwater and above-water plasma arc cutting torch and method |
US4791268A (en) * | 1987-01-30 | 1988-12-13 | Hypertherm, Inc. | Arc plasma torch and method using contact starting |
US4902871A (en) * | 1987-01-30 | 1990-02-20 | Hypertherm, Inc. | Apparatus and process for cooling a plasma arc electrode |
US5164568A (en) * | 1989-10-20 | 1992-11-17 | Hypertherm, Inc. | Nozzle for a plasma arc torch having an angled inner surface to facilitate and control arc ignition |
US5208441A (en) * | 1991-04-29 | 1993-05-04 | Century Manufacturing Co. | Plasma arc ignition system |
US5124525A (en) * | 1991-08-27 | 1992-06-23 | Esab Welding Products, Inc. | Plasma arc torch having improved nozzle assembly |
US5194715A (en) * | 1991-11-27 | 1993-03-16 | Esab Welding Products, Inc. | Plasma arc torch used in underwater cutting |
US5653896A (en) * | 1992-12-11 | 1997-08-05 | Hypertherm, Inc. | Process for high quality plasma arc and laser cutting of stainless steel and aluminum |
US5414236A (en) * | 1992-12-11 | 1995-05-09 | Hypertherm, Inc. | Process for high quality plasma arc cutting of stainless steel and aluminum |
US5558786A (en) * | 1992-12-11 | 1996-09-24 | Hypertherm, Inc. | Process for high quality plasma arc and laser cutting of stainless steel and aluminum |
US5380976A (en) * | 1992-12-11 | 1995-01-10 | Hypertherm, Inc. | Process for high quality plasma arc and laser cutting of stainless steel and aluminum |
US5416296A (en) * | 1994-03-11 | 1995-05-16 | American Torch Tip Company | Electrode for plasma arc torch |
AT406559B (en) * | 1998-01-23 | 2000-06-26 | Fronius Schweissmasch | BURNER FOR CUTTING PROCESS |
US6326581B1 (en) | 1998-01-23 | 2001-12-04 | Fronius Schweissmaschinen Produktion Gmbh & Co. Kg | Torch for cutting processes |
US6054669A (en) * | 1998-05-20 | 2000-04-25 | The Esab Group, Inc. | Plasma marking torch and method of operating same |
US6163009A (en) * | 1998-10-23 | 2000-12-19 | Innerlogic, Inc. | Process for operating a plasma arc torch |
US6498317B2 (en) | 1998-10-23 | 2002-12-24 | Innerlogic, Inc. | Process for operating a plasma arc torch |
US6677551B2 (en) | 1998-10-23 | 2004-01-13 | Innerlogic, Inc. | Process for operating a plasma arc torch |
US6326583B1 (en) | 2000-03-31 | 2001-12-04 | Innerlogic, Inc. | Gas control system for a plasma arc torch |
US20050067387A1 (en) * | 2001-03-09 | 2005-03-31 | Hypertherm, Inc. | Composite electrode for a plasma arc torch |
US6841754B2 (en) | 2001-03-09 | 2005-01-11 | Hypertherm, Inc. | Composite electrode for a plasma arc torch |
US20060289407A1 (en) * | 2001-03-09 | 2006-12-28 | Cook David J | Composite electrode for a plasma arc torch |
US7659488B2 (en) | 2001-03-09 | 2010-02-09 | Hypertherm, Inc. | Composite electrode for a plasma arc torch |
USRE46925E1 (en) | 2001-03-09 | 2018-06-26 | Hypertherm, Inc. | Composite electrode for a plasma arc torch |
US10368557B2 (en) | 2001-07-16 | 2019-08-06 | Foret Plasma Labs, Llc | Apparatus for treating a substance with wave energy from an electrical arc and a second source |
US8785808B2 (en) | 2001-07-16 | 2014-07-22 | Foret Plasma Labs, Llc | Plasma whirl reactor apparatus and methods of use |
US8796581B2 (en) | 2001-07-16 | 2014-08-05 | Foret Plasma Labs, Llc | Plasma whirl reactor apparatus and methods of use |
US20050258151A1 (en) * | 2004-05-18 | 2005-11-24 | The Esab Group, Inc. | Plasma arc torch |
US6969819B1 (en) | 2004-05-18 | 2005-11-29 | The Esab Group, Inc. | Plasma arc torch |
US10194516B2 (en) | 2006-09-13 | 2019-01-29 | Hypertherm, Inc. | High access consumables for a plasma arc cutting system |
US9662747B2 (en) | 2006-09-13 | 2017-05-30 | Hypertherm, Inc. | Composite consumables for a plasma arc torch |
US9560732B2 (en) | 2006-09-13 | 2017-01-31 | Hypertherm, Inc. | High access consumables for a plasma arc cutting system |
US8810122B2 (en) | 2007-10-16 | 2014-08-19 | Foret Plasma Labs, Llc | Plasma arc torch having multiple operating modes |
US9761413B2 (en) | 2007-10-16 | 2017-09-12 | Foret Plasma Labs, Llc | High temperature electrolysis glow discharge device |
US9051820B2 (en) | 2007-10-16 | 2015-06-09 | Foret Plasma Labs, Llc | System, method and apparatus for creating an electrical glow discharge |
US9105433B2 (en) | 2007-10-16 | 2015-08-11 | Foret Plasma Labs, Llc | Plasma torch |
US9111712B2 (en) | 2007-10-16 | 2015-08-18 | Foret Plasma Labs, Llc | Solid oxide high temperature electrolysis glow discharge cell |
US10267106B2 (en) | 2007-10-16 | 2019-04-23 | Foret Plasma Labs, Llc | System, method and apparatus for treating mining byproducts |
US9185787B2 (en) | 2007-10-16 | 2015-11-10 | Foret Plasma Labs, Llc | High temperature electrolysis glow discharge device |
US9230777B2 (en) | 2007-10-16 | 2016-01-05 | Foret Plasma Labs, Llc | Water/wastewater recycle and reuse with plasma, activated carbon and energy system |
US9241396B2 (en) | 2007-10-16 | 2016-01-19 | Foret Plasma Labs, Llc | Method for operating a plasma arc torch having multiple operating modes |
US9445488B2 (en) | 2007-10-16 | 2016-09-13 | Foret Plasma Labs, Llc | Plasma whirl reactor apparatus and methods of use |
US11806686B2 (en) | 2007-10-16 | 2023-11-07 | Foret Plasma Labs, Llc | System, method and apparatus for creating an electrical glow discharge |
US9516736B2 (en) | 2007-10-16 | 2016-12-06 | Foret Plasma Labs, Llc | System, method and apparatus for recovering mining fluids from mining byproducts |
US9560731B2 (en) | 2007-10-16 | 2017-01-31 | Foret Plasma Labs, Llc | System, method and apparatus for an inductively coupled plasma Arc Whirl filter press |
US20090206721A1 (en) * | 2007-10-16 | 2009-08-20 | Foret Plasma Labs, Llc | System, method and apparatus for coupling a solid oxide high temperature electrolysis glow discharge cell to a plasma arc torch |
US9644465B2 (en) | 2007-10-16 | 2017-05-09 | Foret Plasma Labs, Llc | System, method and apparatus for creating an electrical glow discharge |
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Also Published As
Publication number | Publication date |
---|---|
ZA712540B (en) | 1972-01-26 |
BE768745A (en) | 1971-12-20 |
JPS52752A (en) | 1977-01-06 |
CA927740A (en) | 1973-06-05 |
FR2099260A5 (en) | 1972-03-10 |
JPS5431983B1 (en) | 1979-10-11 |
DE2130394B2 (en) | 1976-04-01 |
DE2130394A1 (en) | 1971-12-23 |
GB1326128A (en) | 1973-08-08 |
AT316275B (en) | 1974-07-10 |
NL7108433A (en) | 1971-12-21 |
NL156567B (en) | 1978-04-17 |
ES392393A1 (en) | 1974-08-01 |
CH528326A (en) | 1972-09-30 |
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