Centro-maskin Goteborg Ab

Ab Volvo

Bengt A Johansson

Thomas Sahlmen

Claes Annerstedt

Frank G Jonsson

Per Frid

Ake K Nyvall

Bo C Larsson

Device for selective climate control in vehicle cabins

Thimble for a rope

Cover for fishing hooks

A method of forming and collecting slag products in connection with gas planing, at which method the melt is moved in an ambient atmosphere through such a distance, that the substances in the melt are oxidized and/or cooled so much prior to their collecting, that there is no risk that the products at their collecting are sintered together.

Method of forming and collecting slag products formed at a melting

A method for starting a gas deseaming of ingots and billets employs a point-shaped heating source. A motion is imparted to said heating source parallel to the orifice of a gas-planing nozzle. An oxidizing gas jet emerging from said nozzle burns away metal melted by said point-shaped heating source. A device for performing this method comprises electric arc generating means including an electrode and guide means capable of guiding the electrode along a path opposite the orifice of a gas-planing nozzle and in parallel relation thereto.

Method and a device for initiating an oxygen deseaming process

The present invention relates to a method and an apparatus for treating the surface of a workpiece. The invention ensures correct working of the workpiece surface and renders an accurate control of the working place in question possible. The removal of worked material during the working can also be carried out expediently according to the invention, which shows both a method, at which the working occurs during several working steps, and an apparatus for carrying out the method which in the embodiment shown is an apparatus for gas planing working where ignition and extinction of each separate nozzle is simplified and at the same time the melt can be handled more easily.

Method and apparatus for workpiece surface treatment

A method and a device for gas planing with at least one gas planing device, at which the gas flowing out of the device is shielded off in lateral direction, and gas streams are directed substantially perpendicular from both sides to the gas flowing out of the planing device for applying a retaining effect on the melt being formed, and simultaneously gas streams are directed to the forward portion of the melt for applying a lifting and removing effect thereon.

Method and device for gas planing a workpiece surface to remove surface

A method of gas planing for removing surface defects on a workpiece, where the working gas is supplied to the workpiece via a planing device, and air or another non-oxidizing gas mixture under pressure is supplied to the melt at the completion of the planing operation.

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Gothenburg, Sweden

Bengt A Johansson