Abstract: An attachment system, for attaching a gas nozzle on a gas nozzle mount arranged on a welding torch, allows detachable attachment of the gas nozzle. To create such an attachment one part of the gas nozzle mount is designed to be eccentric and for mounting a fixing element. Via an additional part of the gas nozzle mount and via at least one part of a penstock of the welding torch, a guide is formed for the gas nozzle and the gas nozzle can be secured via a rotational movement.

Abstract: Attachment system for a gas nozzle (33) on a gas nozzle mount (30) arranged on a welding torch (10), which is designed for the detachable attachment of the gas nozzle (33). To create such an attachment one part of the gas nozzle mount (30) is designed to be eccentric and for mounting a fixing element (35) and by means of an additional part of the gas nozzle mount (30) with at least one part of a penstock (31) of the welding torch (10) a guide is formed for the gas nozzle (33) and the gas nozzle (33) can be secured by means of a rotational movement.

Abstract: A volume-flexible body fillable with a fluid including two sheets preferably welded together along the peripheral edges and preferably made of synthetic material, as well as a connection piece for a line for fluid inlet or outlet, preferably gas, especially air, into or from the body, whereby the connection piece (4, 10, 12a) extends into the body (K) from the location of entry parallel to the plane defined by the peripheral edge (3) and possibly extending past the location of entry parallel to the plane defined by the peripheral edge (3) and leading through the edge and/or penetrating one of the sheets (1) and leading into the interior of the body (K).

Abstract: A volume-flexible body fillable with a fluid including two sheets preferably welded together along the peripheral edges and preferably made of synthetic material, as well as a connection piece for a line for fluid inlet or outlet, preferably gas, especially air, into or from the body, whereby the connection piece (4, 10, 12a) extends into the body (K) from the location of entry parallel to the plane defined by the peripheral edge (3) and possibly extending past the location of entry parallel to the plane defined by the peripheral edge (3) and leading through the edge and/or penetrating one of the sheets (1) and leading into the interior of the body (K).

Abstract: A volume-flexible body that can be filled with fluid including sheets preferably welded along the circumferential edges made preferably of synthetic material whereby the sheets form additionally a hinged section along which the sheets are folded forming at least two sections of the inflatable body lying partially on top of one another, and whereby a conduit is formed extending at least through the hinged area between the two sections of the fillable body. At least one element (7, 9) is provided in the length of the conduit (4), which keeps the plastic sheets at a distance apart across at least a part of the width of the conduit (4) even in the deflated condition of the body (K) to decrease the flow resistance between the sections of the body as much as possible and to guarantee a simple and smooth fluid exchange even at a small pressure difference.