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公开(公告)号：US11770891B2
公开(公告)日：2023-09-26
申请号：US16403846
申请日：2019-05-06
Applicant: Hypertherm, Inc.
Inventor： Yu Zhang , Zheng Duan , Mahyar Esmaili , Mike Kornprobst , Brett Hansen , Garrett Quillia
CPC classification number: H05H1/34 , B23K10/02 , H05H1/3457 , H05H1/3468 , H05H1/3489
Abstract: A cartridge for an air-cooled plasma arc torch is provided. The cartridge includes a swirl ring having a molded thermoplastic elongated body with a distal end, a proximal end, and a hollow portion configured to receive an electrode. The swirl ring also has a plurality of gas flow openings defined by the distal end of the elongated body and configured to impart a swirling motion to a plasma gas flow for the plasma arc torch. The swirl ring further includes a nozzle retention feature on a surface of the elongated body at the distal end for retaining a nozzle to the elongated body. The cartridge further includes a cap affixed to the proximal end of the elongated body of the swirl ring for substantially closing the proximal end of the elongated body.
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公开(公告)号：US20230269859A1
公开(公告)日：2023-08-24
申请号：US18005408
申请日：2021-07-13
Applicant: Freiburger Medizintechnik GmbH
Inventor： Loic Ledernez , Michael Bergmann , Markus Altenburger
CPC classification number: H05H1/36 , H05H1/3423 , H05H1/3494 , H05H2245/32
Abstract: The invention relates to an electrode arrangement for a plasma jet device comprising a first and a second printed circuit board each having an exposed surface of a circuit path serving as electrode and facing the other printed circuit board, a spacer arranged between the first and second circuit board and a plasma cell arranged between the first and second printed circuit board and the spacer wherein the plasma cell has a gas inlet and a plasma outlet. The invention further relates to a plasma head comprising said electrode arrangement.
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公开(公告)号：US11701734B2
公开(公告)日：2023-07-18
申请号：US16521626
申请日：2019-07-25
Applicant: The ESAB Group Inc.
Inventor： Andrew Raymond
CPC classification number: B23K10/006 , F16K1/52 , H05H1/34 , H05H1/36
Abstract: Apparatus and methods associated with operating a plasma torch are disclosed. According to some implementations, the apparatus and methods involve the delivery of a process gas to a shuttle valve at first and second pressures for the purpose of altering an axial position of a valve element located inside the shuttle valve. The shuttle valve is configured such that at different axial positions of the valve element the flow of process gas into the plasma torch is altered.
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公开(公告)号：US20230217579A1
公开(公告)日：2023-07-06
申请号：US17945762
申请日：2022-09-15
Applicant: Chang Hoon LEE
Inventor： Chang Hoon LEE
CPC classification number: H05H1/3494 , C23C4/134 , H05H1/42 , H05H2240/10 , H05H2245/40
Abstract: A suspension coating system using an atmospheric pressure plasma generator includes a support that fixedly supports a substrate, a plasma generator that generates active species through plasma discharge, and includes a nozzle unit of which at least a portion is disposed to face the substrate, and a suspension providing device that transfers a suspension including nanoparticles and a binder to one side of the nozzle unit.
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公开(公告)号：US11678428B2
公开(公告)日：2023-06-13
申请号：US16530505
申请日：2019-08-02
Applicant: The ESAB Group Inc.
Inventor： Andrew Raymond , Jeffrey S. Underhill
IPC: H05H1/34
CPC classification number: H05H1/34
Abstract: A method of assembling an electrode by securing together an emitter of the electrode inside an emitter holder while at the same time securing together the emitter holder inside a distal end of a tubular body of the electrode. According to one implementation the securing together includes simultaneously applying a proximally directed force to the emitter and a distally directed force to the emitter holder to cause a bulging of the emitter inside the emitter holder and a bulging of the emitter holder inside the distal end of the tubular body.
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Patent Agency Ranking
公开(公告)号：US20230063837A1
公开(公告)日：2023-03-02
申请号：US17885505
申请日：2022-08-10
Applicant: PLASMA SCIENCE SYSTEM CO., LTD.
Inventor： Jong Pil YOON
Abstract: The present inventive concept relates to a device for treating an exhaust gas, and more particularly, to a plasma device capable of, even when connected to a vacuum pump, extending a lifetime of an electrode of a plasma torch. In the plasma device according to the present inventive concept, since an orifice is installed in a connection unit for connection with a vacuum pump to prevent a decrease in pressure of the vacuum pump, a pressure of a plasma reaction unit including the plasma torch of the plasma device can be maintained similar to normal pressure, thereby reducing the wear of a tungsten electrode in the plasma torch to extend a lifetime of the electrode.
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公开(公告)号：US20230024945A1
公开(公告)日：2023-01-26
申请号：US17786780
申请日：2020-12-21
Applicant: MOLECULAR PLASMA GROUP SA
Inventor： Gill SCHELTJENS , Joanna DONTEN , Bertrand SCHONS , Regis HEYBERGER
IPC: C23C16/513 , C23C16/455 , H05H1/34 , C23C4/134
Abstract: A plasma coating an object has an object profile, and includes the steps of: providing a replaceable shield including a jet inlet, a nozzle outlet and a sidewall extending from the jet inlet to the nozzle outlet; detachably attaching the replaceable shield to a jet outlet of a plasma jet generator; placing the object at the nozzle outlet such that the object profile fits closely to the nozzle outlet edge to within a distance of at least 0.1 mm and at most 5 mm; plasma coating the object with a low-temperature, oxygen-free plasma at an operating pressure which is higher than the atmospheric pressure by providing a plasma jet in the shield via the plasma jet generator and injecting coating precursors in the plasma jet in the shield; identifying the provided shield prior to providing the plasma jet.
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公开(公告)号：US20230012660A1
公开(公告)日：2023-01-19
申请号：US17377587
申请日：2021-07-16
Applicant: Lincoln Global, Inc.
Inventor： Christopher J. Williams
Abstract: A plasma cutting system includes a power supply that outputs first and second plasma cutting currents. A torch is connected to the power supply and includes a first cathode that receives the first plasma cutting current, a first electrode and swirl ring, a second cathode that receives the second plasma cutting current, and a second electrode and swirl ring. The torch simultaneously generates a first and second plasma arcs from the electrodes. A gas controller is configured to separately control a flow of a first plasma gas to the first swirl ring and a flow of a second plasma gas flow to the second swirl ring. A torch actuator moves the torch during cutting, and includes a motor having a hollow shaft rotor for rotating the torch during cutting. A motion controller is operatively connected to the torch actuator to control movements of the torch during cutting.
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公开(公告)号：US20220408540A1
公开(公告)日：2022-12-22
申请号：US17770346
申请日：2020-10-17
Applicant: Thermacut, k.s.
Inventor： George A. Crowe
Abstract: Cutting or welding torch component comprising a ridge (8) forming a thread for connecting the component to other parts of the cutting or welding torch, the thread having a pressure flank (81, 91), a clearance flank (82, 92), a root flat (84, 94) and a crest flat (83, 93), wherein—the angle included by the pressure flank (81, 91) and clearance flank (82, 92) is 60° or less, —the angle α included by the pressure flank (81, 91) and a plane perpendicular to the longitudinal axis (10, 20, 30) of the thread is 40° to 50°, —the angle β included by the clearance flank (82, 92) and a plane perpendicular to the longitudinal axis (10, 20, 30) of the thread is 0° to 20°, and—the height (VZ) of the ridge (8) is 0.4 times the pitch of the thread or less.
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公开(公告)号：US20220369448A1
公开(公告)日：2022-11-17
申请号：US17740874
申请日：2022-05-10
Applicant: Hypertherm, Inc.
Inventor： John Peters , Brian Currier
IPC: H05H1/34
Abstract: An electrode for a consumable cartridge of a plasma arc torch is provided. The electrode comprises a substantially hollow body defining a proximal end, a distal end and a longitudinal axis extending therebetween. The electrode also includes a plurality of flanges, including a proximal flange and a distal flange, disposed circumferentially about an external surface of the hollow body and extending radially outward. Each flange defines one or more holes configured to conduct a gas flow therethrough along the external surface of the hollow body. The one or more holes on the proximal flange define a first combined cross-sectional flow area that is different from a second combined cross-sectional flow area defined by the one or more holes on the distal flange.
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