Abstract

Directing component (1) for a plasma torch, the directing component (1) comprising: a cylindrical portion (17), a conical portion (18), coaxially adjoining the cylindrical portion (17), wherein the cylindrical portion (17) and the conical portion (18) together define a pass-through cavity, a set of mutually angularly spaced apart channels (11) for cooling liquid, each of said channels (11) for cooling liquid having an inlet located at an internal surface of the directing component (1) and an outlet located at an external surface of the directing component (1) and extending at least partially through the conical portion (18), and a set of channels (12) for shield gas, each of said channels (12) for shield gas having an inlet located at an internal surface of the directing component (1) and an inlet at an external surface of the directing component (1) and extending at least partially through the conical portion (18), wherein the channels (11) for cooling liquid form an angle in the range of 30° to 60° with the axis of the directing component (1).

IPC Classes  ?

• H05H 1/28 - Cooling arrangements
• B23K 10/00 - Welding or cutting by means of a plasma

Abstract

Nozzle for a plasma torch, said nozzle comprising: —an internal component (37, 137) which defines an internal pass-through cavity to form a plasma chamber having an outlet opening (7, 107), —an external component (38, 138) which at least partially and coaxially surrounds the internal component (37, 137) and which has a distal conical region, a proximal cylindrical region and an intermediary region (8, 108) between those, wherein radial protrusions (29, 129) are arranged with a mutual angular spacing at an external surface of the external component (38, 138) along a common radial plane between the intermediary region (8, 108) and the proximal cylindrical region.

IPC Classes  ?

• H05H 1/28 - Cooling arrangements

Abstract

Assembly for a plasma arc torch comprising:—an electrical contact element (6), having a proximal contact surface (25) for contact with a power supply component (8) and a cavity with inner side walls for contact with side walls of a proximal end portion (14) of an electrode (3), and—a spring (4) for pushing the electrode (3) away from the electrical contact element (6), and—an insulation element (5) arranged on the electrical contact element (6) and adapted to prevent transfer of electrical current form the electrical contact element (6) to the spring (4).

IPC Classes  ?

• H05H 1/34 - Details, e.g. electrodes, nozzles

Abstract

Nozzle for a plasma torch, said nozzle comprising: - an internal component (37, 137) which defines an internal pass-through cavity to form a plasma chamber having an outlet opening (7, 107), - an external component (38, 138) which at least partially and coaxially surrounds the internal component (37, 137) and which has a distal conical region, a proximal cylindrical region and an intermediary region (8, 108) between those, wherein radial protrusions (29, 129) are arranged with a mutual angular spacing at an external surface of the external component (38, 138) along a common radial plane between the intermediary region (8, 108) and the proximal cylindrical region.

IPC Classes  ?

• H05H 1/28 - Cooling arrangements
• H05H 1/34 - Details, e.g. electrodes, nozzles

Abstract

Directing component (1) for a plasma torch, the directing component (1) comprising: - a cylindrical portion (17), - a conical portion (18), coaxially adjoining the cylindrical portion (17), wherein the cylindrical portion (17) and the conical portion (18) together define a pass-through cavity, - a set of mutually angularly spaced apart channels (11) for cooling liquid, each of said channels (11) for cooling liquid having an inlet located at an internal surface of the directing component (1) and an outlet located at an external surface of the directing component (1) and extending at least partially through the conical portion (18), and - a set of channels (12) for shield gas, each of said channels (12) for shield gas having an inlet located at an internal surface of the directing component (1) and an inlet at an external surface of the directing component (1) and extending at least partially through the conical portion (18), wherein the channels (11) for cooling liquid form an angle in the range of 30° to 60° with the axis of the directing component (1).

IPC Classes  ?

• H05H 1/28 - Cooling arrangements

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.

IPC Classes  ?

• H05H 1/34 - Details, e.g. electrodes, nozzles
• B23K 9/28 - Supporting devices for electrodes

Abstract

Assembly for a plasma arc torch comprising: - an electrical contact element (6), having a proximal contact surface (25) for contact with a power supply component (8) and a cavity with inner side walls for contact with side walls of a proximal end portion (14) of an electrode (3), and - a spring (4) for pushing the electrode (3) away from the electrical contact element (6), and - an insulation element (5) arranged on the electrical contact element (6) and adapted to prevent transfer of electrical current form the electrical contact element (6) to the spring (4).

IPC Classes  ?

• H05H 1/34 - Details, e.g. electrodes, nozzles

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 ß 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.

IPC Classes  ?

• B23K 9/28 - Supporting devices for electrodes
• B23K 10/00 - Welding or cutting by means of a plasma
• H05H 1/34 - Details, e.g. electrodes, nozzles

Goods & Services

Cutting and welding machines and torches, their consumable parts and spare parts included in this class, plasma welding torches, plasma cutting torches, plasma welding machines, plasma cutting machines, gas-operated torches for cutting, gas operated torches for welding, laser cutting and welding torches for metal working, laser cutting and welding machines for metal working, heads (parts of machines) for cutting by means of water jet and their consumable parts and spare parts included in this class, filters for laser cutting and welding machines, bellows for laser cutting and welding machines, vacuum pumps for laser cutting and welding machines.

Goods & Services

Cutting and welding machines and torches, their consumables and spare parts included in this class, especially plasma torches and machines, gas torches, laser cutting and welding torches, water jet cutting machines and heads and their consumables and spare parts included in this class, filters for laser cutting and welding machines, bellows for laser cutting and welding machines, vacuum pumps for laser cutting and welding machines.

Abstract

A connector assembly for coupling a plasma arc torch or a welding torch to a power supply having a receiving mechanism. The connector assembly includes a connector body, a plug, and a locking key assembly. The connector body has distal and proximal ends, and the plasma arc torch is affixed to the distal end. The plug extends from the proximal end of the connector body and may include a keyseat. The locking key assembly includes an adapter key and a latch. The adapter key is disposed within the plug keyseat and is configured for receipt within a keyway of the receiving mechanism. The latch retains the locking key assembly to the connector body or connector assembly. The locking key assembly releasably couples the connector assembly to the receiving mechanism and the plasma arc torch to the power supply.

IPC Classes  ?

• B23K 10/00 - Welding or cutting by means of a plasma
• H01R 43/26 - Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for engaging or disengaging the two parts of a coupling device
• H05H 1/34 - Details, e.g. electrodes, nozzles
• H01R 13/00 - Details of coupling devices of the kinds covered by groups or
• H01R 13/627 - Snap-action fastening
• H01R 13/629 - Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure

Goods & Services

Cutting and welding machines and thermic lances and soldering blow pipes and spare parts and fittings therefor, included in this class, in particular plasma torches and cutters, gas-operated blow pipes, laser cutters and soldering blow pipes and machines and torches for water jet cutting and spare parts and fittings therefor, included in this class, filters, bellows and vacuum pumps for laser cutting and welding machines.

Goods & Services

Cutting and welding machines and torches, their consumables and spare parts included in this class; especially plasma torches and machines; gas-operated cutting torches; gas-operated welding torches; laser cutting and welding torches and machines; machines and heads for cutting by means of water jet and their consumables and spare parts included in this class; filters; bellows; and vacuum pumps for laser cutting and welding machines. Apparatuses for regulating or controlling electricity for plasma cutting and welding machines and for machines for cutting by means of water jet; optical lenses and mirrors for laser cutting and welding machines; cables for cutting and welding machines.

Goods & Services

Cutting and welding machines and torches, their consumables and spare parts included in this class, especially plasma torches and machines, gas torches, laser cutting and welding torches and machines and heads for cutting by means of water jet and their consumables and spare parts included in this class, filters, bellows and vacuum pumps for laser cutting and welding machines. Apparatuses for regulating or controlling electricity for plasma cutting and welding machines and for machines for cutting by means of water jet, optical lenses and mirrors for laser cutting and welding machines, cables for cutting and welding machines.

Goods & Services

Cutting and welding machines and thermic lances and soldering blow pipes and consumables and spare parts therefor, included in this class, in particular plasma torches and cutters, gas-operated blow pipes, laser cutters and soldering blow pipes and machines and torches for water jet cutting and spare parts and consumables therefor, included in this class, filters, bellows and vacuum pumps for laser cutting and welding machines.

Abstract

An electrode-supporting assembly for a contact-start plasma arc torch has an insulator that partially houses an electrode, and employs a spring-loaded plunger to bias the electrode to a forward position. The spring is engaged between the plunger and a contact element attached to the insulator, and may conduct electrical current to the electrode. The plunger, spring, and contact element are retained in the insulator when the torch is opened to replace the electrode, which is a consumable part. The electrode and the plunger have axially-engagable mating surfaces to assure good thermal and electrical conductivity therebetween. Conductivity can be further enhanced by forming the plunger of silver or a silver-bearing alloy. In some embodiments, a passage through the insulator is partitioned into forward and rear chambers, with the plunger, spring, and contact element trapped in the rear chamber.

IPC Classes  ?

• H05H 1/34 - Details, e.g. electrodes, nozzles
• B23K 10/00 - Welding or cutting by means of a plasma
• H05H 1/38 - Guiding or centering of electrodes

Goods & Services

Cutting and welding machines and torches, their consumables and spare parts included in this class, especially plasma torches and machines, gas torches, laser cutting and welding torches, machines and heads for cutting by means of water jet and their consumables and spare parts included in this class, filters, bellows and vacuum pumps for laser cutting and welding machines. Apparatuses for regulating or controlling electricity for plasma cutting and welding machines, and for machines for cutting by means of water jet, optical lenses and mirrors for laser cutting and welding machines, cables for cutting and welding machines.

Abstract

A power transfer assembly for a contact-start plasma arc torch conducts electrical current to an electrode through mating structures provided on two conductive elements. The mating structures are defined by sidewalls that are parallel to an assembly axis, and are configured to translatably engage each other, but are blocked from rotating with respect to each other. A compression and torsion spring serves to bias the conductive elements apart to bias the electrode to a forward position, and to apply a torsional load to the mating structures to maintain their sidewalls in contact. The mating structures can be provided by a shaped recess in one conductive element and a corresponding shaped protrusion extending from the other element. The spring can be secured to the conductive elements to maintain the components of the power transfer assembly together when the torch in which they are employed is disassembled.

IPC Classes  ?

• B23K 10/00 - Welding or cutting by means of a plasma
• H05H 1/34 - Details, e.g. electrodes, nozzles
• F16H 1/06 - Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with parallel axes

Abstract

A nozzle for a plasma arc torch is provided with a distal region sidewall formed by rotation of a variably curved element about a nozzle axis. The distal region sidewall has an inclination to the nozzle axis that increases at an increasing rate as it approached a nozzle terminal plane that terminates an orifice of the nozzle. The distal region sidewall is substantially tangent to the nozzle terminal plane where it intersect the same. The desired curvature can be formed by rotation of a portion of an ellipse or parabola. The curvature of the distal region sidewall appears to draw a portion of the shield gas along the nozzle to provide improved cooling and greater stability to the plasma arc, which can improve the quality of cuts made by the arc and can increase nozzle life.

IPC Classes  ?

• H05H 1/34 - Details, e.g. electrodes, nozzles
• H05H 1/28 - Cooling arrangements

Goods & Services

Gas-operated cutting torches, cutting torches, gas-operated welding torches, torches for plasma cutting and their parts included in this class, hand-held and machine operated plasma cutting systems and their parts included in this class. Apparatus for regulating or controlling electricity for plasma torches.

Goods & Services

Gas-operated cutting torches, cutting torches, gas-operated welding torches, torches for plasma cutting and their parts included in this class; handheld and machine operated plasma cutting systems and their parts included in this class.

Goods & Services

Gas-operated cutting torches, cutting torches, gas-operated welding torches, torches for plasma cutting and their parts included in this class; handheld and machine operated plasma cutting systems and their parts included in this class.

Abstract

An electrode-supporting assembly for a contact-start plasma arc torch has an insulator that partially houses an electrode, and employs a spring-loaded plunger to bias the electrode to a forward position. The spring is engaged between the plunger and a contact element attached to the insulator, and may conduct electrical current to the electrode. The plunger, spring, and contact element are retained in the insulator when the torch is opened to replace the electrode, which is a consumable part. The electrode and the plunger have axially-engagable mating surfaces to assure good thermal and electrical conductivity therebetween. Conductivity can be further enhanced by forming the plunger of silver or a silver-bearing alloy. In some embodiments, a passage through the insulator is partitioned into forward and rear chambers, with the plunger, spring, and contact element trapped in the rear chamber.

IPC Classes  ?

• B23K 9/00 - Arc welding or cutting
• B23K 10/00 - Welding or cutting by means of a plasma
• H05H 1/34 - Details, e.g. electrodes, nozzles

Goods & Services

(1) Gas cutting torches, cutting torches, gas welding torches, burners for plasma cutting and their structural replacement parts.

Goods & Services

Gas-operated cutting blow pipes, thermic lances (machines), gas-operated soldering blow pipes.