An ambient oxygen concentrating torch has an oxygen concentrating unit disposed in operational communication with a second compressor whereby oxygen is sourced from the ambient atmosphere by Pressure Swing Adsorption and producible for pressurization and storage interior to a pressure tank. Controlled release of the stored oxygen is thereby enabled for combination with a hydrocarbon to effect combustion and production of a high-temperature flame as used in welding and cutting. Because oxygen is sourced from the ambient environment, and is continuously producible therefrom, need of separate oxygen canisters is entirely obviated.

An ambient oxygen concentrating torch has an oxygen concentrating unit disposed in operational communication with a second compressor whereby oxygen is sourced from the ambient atmosphere by Pressure Swing Adsorption and producible for pressurization and storage interior to a pressure tank. Controlled release of the stored oxygen is thereby enabled for combination with a hydrocarbon to effect combustion and production of a high-temperature flame as used in welding and cutting. Because oxygen is sourced from the ambient environment, and is continuously producible therefrom, need of separate oxygen canisters is entirely obviated.

An automated oxy-fuel thermal processing system including an oxy-fuel torch, an automated machine tool operatively coupled to the torch for moving the torch relative to a work piece, and a circuit including a voltage source or a current electrically connected to the torch and configured to be electrically connected to the work piece. The automated oxy-fuel thermal processing system may further include a processor that is operatively connected to the torch, the automated machine tool, the circuit, and the voltage source or current source, wherein the processor is configured to control the operation of the torch, the automated machine tool and the voltage source or current source, and to monitor a current or voltage in the circuit in a predefined manner.

An automated oxy-fuel thermal processing system including an oxy-fuel torch, an automated machine tool operatively coupled to the torch for moving the torch relative to a work piece, and a circuit including a voltage source or a current electrically connected to the torch and configured to be electrically connected to the work piece. The automated oxy-fuel thermal processing system may further include a processor that is operatively connected to the torch, the automated machine tool, the circuit, and the voltage source or current source, wherein the processor is configured to control the operation of the torch, the automated machine tool and the voltage source or current source, and to monitor a current or voltage in the circuit in a predefined manner.

The present invention relates to methods and apparatus for detection of fire states in the presence of welding activities. In some examples, the welding detection system may algorithmically calculate a risk of a fire state developing. In some embodiments, the welding fire detection and prevention system may communicate warning states to users, supervisors, equipment and/or building monitoring systems.

A protective cutting torch tip cover system is provided, for use with an oxygen and acetylene cutting torch having a conical torch tip having a plurality of ports through which oxygen and acetylene gases pass prior to combustion, which includes a generally conical shaped cover formed of elastomeric material and configured for elastic frictional engagement with said cutting torch tip and a protective cover storage device for holding the protective cover up and away from the torch flame when not installed on the torch tip.

Electrostatic transfer head array assemblies and methods of transferring and bonding an array of micro devices to a receiving substrate are described. In an embodiment, a method includes picking up an array of micro devices from a carrier substrate with an electrostatic transfer head assembly supporting an array of electrostatic transfer heads, contacting a receiving substrate with the array of micro devices, transferring energy from the electrostatic transfer head assembly to bond the array of micro devices to the receiving substrate, and releasing the array of micro devices onto the receiving substrate.

In a nozzle distance confirming device and a method of nozzle distance confirmation, first, a nozzle distance confirming member together with an exchange section is attached to a tip section of a nozzle main body. Next, a tip section of a needle is caused to abut on the nozzle distance confirming member, whereby the nozzle distance confirming member is exposed from the exchange section and brought into contact with a workpiece. Next, a position of the needle is detected by an eddy current sensor.

In a nozzle distance confirming device and a method of nozzle distance confirmation, first, a nozzle distance confirming member together with an exchange section is attached to a tip section of a nozzle main body. Next, a tip section of a needle is caused to abut on the nozzle distance confirming member, whereby the nozzle distance confirming member is exposed from the exchange section and brought into contact with a workpiece. Next, a position of the needle is detected by an eddy current sensor.

A method of monitoring a heating operation on an component by a flame torch, including the steps of producing a flame with the flame torch, rotating the component with respect to the flame so that a circular weld is created on the component, and providing a first sensor that is operatively engaged with the component so that the first sensor monitors rotation or non-rotation of the components.