Abstract: A cutting torch system comprises a cutting torch and a control system. The cutting torch includes a cutting oxygen channel for supplying cutting oxygen, a heating oxygen channel for supplying heating oxygen, a fuel gas channel for supplying fuel gas, an ignition mixer configured to selectively generate ignition gas from the heating oxygen and the fuel gas, and at least one sensor adapted for measuring a pressure and/or flow rate in one of the channels. The control system is adapted to maintain a temperature of the cutting torch to allow operation of the at least one sensor by adjusting a flow rate and/or a pressure of the gasses supplied to the cutting torch and/or by switching the cutting torch between an ignition mode and a cleaning and cooling mode.

Abstract: The invention relates to a shut-off valve for controlling flow of a pressurised gas. The shut-off valve comprises a body defining a passage extending between a gas inlet channel and a gas outlet channel, and a sealing element arranged to, in a first position, close the passage, and in a second position, open the passage to allow gas to flow between the gas inlet channel and the gas outlet channel through the passage. The invention also relates to a method for controlling flow of a pressurised gas by means of a shut-off valve.

Abstract: The invention relates to a protective valve ring (1) for an oxygen gas cylinder (3). The protective valve ring (1) comprises a body (4) adapted to enclose an outlet (5) of a cylinder valve (2). The body (2) comprises an incombustible and heat absorbing material, and has an internal shaping adapted to guide any potential oxygen gas leak away from inflammable parts of the gas cylinder (3). The invention also relates to a shut-off valve (2) for controlling flow of a pressurised gas and a method for attaching a protective valve ring (1) to a shut-off valve (2) of an oxygen gas cylinder (3).

Abstract: The invention relates to shut-off valve for controlling flow of a pressurised gas. The shut-off valve comprising a body defining a passage extending between a gas inlet channel and a gas outlet channel, a sealing element, and an emergency stop mechanism. The sealing element arranged to, in a first position, close the passage, and in a second position, open the passage to allow gas to flow between the gas inlet channel and the gas outlet channel through the passage. The invention also relates to a method for controlling flow of a pressurised gas with a shut-off valve and a method for activating an emergency stop of a shut-off valve.

Abstract: A cutting torch system comprises a cutting torch and a control system. The cutting torch includes a cutting oxygen channel for supplying cutting oxygen, a heating oxygen channel for supplying heating oxygen, a fuel gas channel for supplying fuel gas, an ignition mixer configured to selectively generate ignition gas from the heating oxygen and the fuel gas, and at least one sensor adapted for measuring a pressure and/or flow rate in one of the channels. The control system is adapted to maintain a temperature of the cutting torch to allow operation of the at least one sensor by adjusting a flow rate and/or a pressure of the gasses supplied to the cutting torch and/or by switching the cutting torch between an ignition mode and a cleaning and cooling mode.

Abstract: A cutting torch comprises a cutting oxygen channel for supplying cutting oxygen, a heating oxygen channel for supplying heating oxygen, a fuel gas channel for supplying fuel gas, an ignition mixer configured to generate ignition gas from heating oxygen and fuel gas, a heating oxygen bypass channel originating from the heating oxygen channel and coupled to the ignition mixer, the heating oxygen bypass channel configured to supply heating oxygen to the ignition mixer, a fuel gas bypass channel originating from the fuel gas channel and coupled to the ignition mixer, the fuel gas bypass channel configured to supply fuel gas to the ignition mixer, and a fuel gas shut-off valve located on the fuel gas bypass channel. The shut-off valve is configured to turn off the supply of the fuel gas to the ignition mixer, and the ignition mixer supplies only heating oxygen to the cutting oxygen channel.

Abstract: The invention relates to a protective valve ring (1) for an oxygen gas cylinder (3). The protective valve ring (1) comprises a body (4) adapted to enclose an outlet (5) of a cylinder valve (2). The body (2) comprises an incombustible and heat absorbing material, and has an internal shaping adapted to guide any potential oxygen gas leak away from inflammable parts of the gas cylinder (3). The invention also relates to a shut-off valve (2) for controlling flow of a pressurised gas and a method for attaching a protective valve ring (1) to a shut-off valve (2) of an oxygen gas cylinder (3).

Abstract: A cutting torch comprises a cutting oxygen channel for supplying cutting oxygen, a heating oxygen channel for supplying heating oxygen, a fuel gas channel for supplying fuel gas, an ignition mixer configured to generate ignition gas from heating oxygen and fuel gas, a heating oxygen bypass channel originating from the heating oxygen channel and coupled to the ignition mixer, the heating oxygen bypass channel configured to supply heating oxygen to the ignition mixer, a fuel gas bypass channel originating from the fuel gas channel and coupled to the ignition mixer, the fuel gas bypass channel configured to supply fuel gas to the ignition mixer, and a fuel gas shut-off valve located on the fuel gas bypass channel. The shut-off valve is configured to turn off the supply of the fuel gas to the ignition mixer, and the ignition mixer supplies only heating oxygen to the cutting oxygen channel.

Abstract: The invention relates to an electronic gauge (I) for use with a compressed gas cylinder (2). The electronic gauge (I) comprises a display interface (4), a pressure sensor (5) having a pressure sensing element (6) and an amplification circuit (7) for amplifying a signal from the pressure sensing element (6), a temperature sensor (8), and a control electronics board (I 0) connected to the display interface (4), the pressure sensing element (6) and the temperature sensor (8). The invention also relates to a method of calculating time remaining until substantially all gas in a compressed gas cylinder (2) has been depleted, and a method of monitoring that a residual pressure valve of a gas cylinder (2) is operational.

Abstract: The present invention relates to a cutting torch system having an ignition mode and a cooling and cleaning mode. The cutting torch system comprises a cutting torch (1) having a cutting oxygen channel (4), a heating oxygen channel (5), and a fuel gas channel (6) The heating oxygen channel (5) and the fuel gas channel (6) are connected to an ignition mixer (7) and a fuel gas shut-off valve (8) is arranged upstream of the ignition mixer (7). The fuel gas shut-off valve (8) is configured to be open in the ignition mode and closed in the cleaning and cooling mode. The ignition mixer (7) is adapted for mixing heating oxygen and fuel gas into an ignition gas and communicating the ignition gas into the cutting oxygen channel (4) in the ignition mode, and for communicating heating oxygen into the cutting oxygen channel (4) in the cleaning and cooling mode.

Abstract: The invention relates to shut-off valve for controlling flow of a pressurised gas. The shut-off valve comprising a body defining a passage extending between a gas inlet channel and a gas outlet channel, and a sealing element, and an emergency stop mechanism. The sealing element arranged to, in a first position, close the passage, and in a second position, open the passage to allow gas to flow between the gas inlet channel and the gas outlet channel through the passage. The invention also relates to a method for controlling flow of a pressurised gas with a shut-off valve and a method for activating an emergency stop of a shut-off valve.

Abstract: The invention relates to a shut-off valve for controlling flow of a pressurised gas. The shut-off valve comprises a body defining a passage extending between a gas inlet channel and a gas outlet channel, and a sealing element arranged to, in a first position, close the passage, and in a second position, open the passage to allow gas to flow between the gas inlet channel and the gas outlet channel through the passage. The invention also relates to a method for controlling flow of a pressurised gas by means of a shut-off valve.

Abstract: The invention relates to a method and a user interface for remote monitoring and controlling of a patient oxygen therapy device. The invention also relates to a patient oxygen therapy device and a computer program product.

Abstract: The present invention relates to a cutting torch system having an ignition mode and a cooling and cleaning mode. The cutting torch system comprises a cutting torch (1) having a cutting oxygen channel (4), a heating oxygen channel (5), and a fuel gas channel (6) The heating oxygen channel (5) and the fuel gas channel (6) are connected to an ignition mixer (7) and a fuel gas shut-off valve (8) is arranged upstream of the ignition mixer (7). The fuel gas shut-off valve (8) is configured to be open in the ignition mode and closed in the cleaning and cooling mode. The ignition mixer (7) is adapted for mixing heating oxygen and fuel gas into an ignition gas and communicating the ignition gas into the cutting oxygen channel (4) in the ignition mode, and for communicating heating oxygen into the cutting oxygen channel (4) in the cleaning and cooling mode.