Hanover, NH, United States
Hanover, NH, United States

Hypertherm is a American corporation which designs and manufactures advanced cutting systems such as plasma cutting machinery and related high-technology industrial applications for specific use in a wide variety of industries such as shipbuilding, manufacturing, and automotive repair. It also develops and produces man-portable handheld and mechanized plasma cutters, fiber lasers, and waterjet cutting systems, along with consumables, CNC motion and height controls, and nesting and process optimization software. The company employs around 1,400 people: approximately 1,100 people at its main headquarters in New Hampshire, and another 300 throughout its international offices in Europe, Asia, and Latin America. Wikipedia.

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Patent
Hypertherm | Date: 2017-06-21

A cartridge (100) for an air-cooled plasma arc torch is provided. The cartridge includes a swirl ring (102) 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 (102) also has a plurality of gas flow openings (136) 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 (102) further includes a nozzle retention feature (216) 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 (106) affixed to the proximal end of the elongated body of the swirl ring (102) for substantially closing the proximal end of the elongated body.


Patent
Hypertherm | Date: 2017-03-15

The invention features a replaceable cartridge for a plasma arc torch. The cartridge includes a cartridge body (112) having a first section (112A) and a second section (112B). The first and second sections are joined at an interface (132) to form a substantially hollow chamber. The interface (132) provides a coupling force that secures the first and second sections together. The cartridge also includes an arc constricting member (124) located in the second section; an electrode (120) included within the substantially hollow chamber; and a contact start spring element (128) affixed to the electrode (120). The spring element (128) imparts a separating force that biases the electrode (120) toward at least one of the first section or the second section of the body (112). The separating force has a magnitude that is less than a magnitude of the coupling force.


In some aspects, torch receptacles for coupling a plasma arc torch to a torch lead can include: a body having a first end to connect to the torch lead and a second end to connect to a torch body; a set of ports within the first end to fluidly connect to a set of fluid conduits within the torch lead; and a multiway valve within the body and fluidly connected to the set of ports and to a torch gas conduit formed in the second end, the multiway valve being configured to: i) manipulate a flow of fluids between the first end and the second end to select from primary gases entering the set of ports, ii) deliver a selected primary gas to the torch body through the torch gas conduit, and iii) fluidly connect the torch gas conduit to a gas supply manifold of the plasma cutting system.


In some aspects, plasma torch cutting systems can include a housing and a plasma torch power supply within the housing and configured to generate a signal that initiates generation of a plasma arc in a torch head, the power supply including an integrated circuit comprising a plurality of electronic components used to generate the signal that initiates generation of the plasma arc, at least one of the electronic components being at least partially formed of a wide bandgap semiconductor material.


Patent
Hypertherm | Date: 2017-07-26

In some aspects, consumables for a material processing head can include a body that is substantially axially symmetric about a central longitudinal axis; and a ring-shaped data tag attached to the body, the data tag having a central axis that is substantially coaxial to the central longitudinal axis of the body, the data tag having a conductive coil formed around the central axis of the data tag.


In some aspects, electrodes can include a front portion shaped to matingly engage a nozzle of the plasma cutting system, the front portion having a first end comprising a plasma arc emitter disposed therein; and a rear portion thermally connected to a second end of the front portion, the rear portion shaped to slidingly engage with a complementary swirl ring of the plasma cutting system and including: an annular mating feature extending radially from a proximal end of the rear portion of the electrode to define a first annular width to interface with the swirl ring, the annular mating feature comprising a sealing member configured to form a dynamic seal with the swirl ring to inhibit a flow of a gas from a forward side of the annular mating feature to a rearward side of the annular mating feature.


Patent
Hypertherm | Date: 2017-03-15

The invention features a frame for a plasma arc torch cartridge. The frame includes a thermally conductive frame body (308) having a longitudinal axis, a first end configured to connect to a first consumable component, and a second end configured to mate with a second consumable component. The frame body surrounds at least a portion of the second consumable component. The frame also includes a set of flow passages (328A, 328B) formed within the frame body. The set of flow passages fluidly connects an internal surface of the frame body and an external surface of the frame body. The set of flow holes is configured to impart a fluid flow pattern about the second consumable component.


Patent
Hypertherm | Date: 2017-03-15

An orifice assembly for a liquid jet cutting system includes a generally cylindrical base, an orifice member, and an orifice cap. The base includes a conduit that extends through a central axis from a top surface to a bottom surface of the base. The base also includes a pedestal that defines a protrusion from the top surface, the pedestal having a planar top region substantially parallel to the planar bottom region of the base. The orifice member sits on the planar top region of the pedestal. The orifice member defines an intermediate conduit therethrough, the intermediate conduit in fluid communication with the base conduit. The orifice cap defines an upper conduit therethrough, the upper conduit in fluid communication with the intermediate conduit of the orifice member. The orifice cap is configured to secure the orifice member to the pedestal.


The invention features a seal assembly (300) for a high pressure liquid system. The seal assembly includes a seal carrier (304) having a base portion (305) defining a proximal end, a distal end (306), and a bore (310). The seal carrier (304) also includes a seal (308) disposed within the bore (310) of the seal carrier. The seal carrier (304) also includes a backup ring (312) disposed within the bore (310) of the seal carrier. The seal carrier (304) also includes a hoop ring (316) disposed substantially between the seal (308) and the backup ring (312), the hoop ring (316) having a proximal surface (317) and an outer surface (318).


Patent
Hypertherm | Date: 2016-06-03

Systems and methods can be provided to use an automated cutting system to identify an edge or multiple edges of a workpiece. An automated cutting system receives trace data for a test path to be traced over a workpiece. The automated cutting system includes a torch from which gas is flowed. The torch is controlled in accordance with the trace data to trace the test path over the workpiece. A set of back pressure values are obtained by monitoring a back pressure of the gas during the tracing of the path. The back pressure values are mapped to a set of coordinates. An edge of the workpiece is identified using the set of back pressure values and the set of coordinates.

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