Abstract: Systems and apparatus are disclosed relating to improved fluid supply systems. In some examples, the improved fluid supply systems use an electrically controllable proportional valve and a surge prevention process to prevent a surge of pressurized fluid at the end of a welding-type operation. In particular, the surge prevention process may coordinate closure of the proportional valve and an on/off solenoid valve so that pressure in the fluid flow path can equalize to an ambient pressure after a welding operation (and/or a post flow operation) has ended. This coordination ensures that there is no pressure buildup and/or associated surge of fluid when the on/off solenoid valve is next opened (e.g., at the start of the next welding operation).

Abstract: Methods and apparatus are disclosed relating to mixing fluids in welding-type equipment. In some examples, a welding-type power supply (and/or wire feeder) may include multiple fluid paths through which to provide fluid from multiple fluid reservoirs to multiple welding-type tools. The power supply may be configured to automatically control fluid flow rates through the fluid paths via proportional valves. Further, the welding-type power supply may be configured to allow and/or prohibit mixing of fluids from different flow paths via control of various valves.

Abstract: Methods and apparatus are disclosed relating to mixing fluids in welding-type equipment. In some examples, a welding-type power supply (and/or wire feeder) may include multiple fluid paths through which to provide fluid from multiple fluid reservoirs to multiple welding-type tools. The power supply may be configured to automatically control fluid flow rates through the fluid paths via proportional valves. Further, the welding-type power supply may be configured to allow and/or prohibit mixing of fluids from different flow paths via control of various valves.

Abstract: An example welding torch includes: a handle piece that is electrically and mechanically connected to the torch head on a first end of the handle piece; a power supply connector configured to be coupled to a welding power supply on a first end of the power supply connector, wherein at least one of the handle piece or the power supply connector are a single piece; a welding cable that is electrically and mechanically connected to both a second end of the handle and a second end of the power supply connector; a first cover over the torch head, the handle piece, and a first portion of the welding cable connected to the handle piece; and a second cover over the power supply connector and a second portion of the welding cable connected to the power supply connector.

Abstract: Methods and apparatus are disclosed relating to mixing fluids in welding-type equipment. In some examples, a welding-type power supply (and/or wire feeder) may include multiple fluid paths through which to provide fluid from multiple fluid reservoirs to multiple welding-type tools. The power supply may be configured to automatically control fluid flow rates through the fluid paths via proportional valves. Further, the welding-type power supply may be configured to allow and/or prohibit mixing of fluids from different flow paths via control of various valves.

Abstract: Systems and apparatus are disclosed relating to improved fluid supply systems. In some examples, the improved fluid supply systems use an electrically controllable proportional valve and a surge prevention process to prevent a surge of pressurized fluid at the end of a welding-type operation. In particular, the surge prevention process may coordinate closure of the proportional valve and an on/off solenoid valve so that pressure in the fluid flow path can equalize to an ambient pressure after a welding operation (and/or a post flow operation) has ended. This coordination ensures that there is no pressure buildup and/or associated surge of fluid when the on/off solenoid valve is next opened (e.g., at the start of the next welding operation).

Abstract: Embodiments of a welding torch with an improved handle are provided. The welding torch may include an electrical conductor, an outer material layer disposed about the electrical conductor, and a sealed vacuum region disposed between the electrical conductor and the outer material layer.

Abstract: Embodiments of a the present disclosure include a remote control system for a welding system having a control device and control circuitry configured to select a first operating parameter adjustment for a first operating parameter of the welding system based on a first actuation of the control device, wherein the first operating parameter adjustment comprises an adjustment to a rate of change of the first operating parameter.

Abstract: Embodiments of a the present disclosure include a remote control system for a welding system having a control device and control circuitry configured to select a first operating parameter adjustment for a first operating parameter of the welding system based on a first actuation of the control device, wherein the first operating parameter adjustment comprises an adjustment to a rate of change of the first operating parameter.

Abstract: Embodiments of a welding torch with an improved handle are provided. The welding torch may include an electrical conductor, an outer material layer disposed about the electrical conductor, and a sealed vacuum region disposed between the electrical conductor and the outer material layer.

Abstract: Embodiments of a the present disclosure include a remote control system for a welding system having a control device and control circuitry configured to select a first operating parameter adjustment for a first operating parameter of the welding system based on a first actuation of the control device, wherein the first operating parameter adjustment comprises an adjustment to a rate of change of the first operating parameter.