Abstract: The invention pertains to a device and a method for sealing a package with a sealing seam by partially fusing together the packaging material, and a supply system for protective gas. The device includes a gas supply for inert gas and an inert gas outlet opening, wherein the gas supply for inert gas and the inert gas outlet opening are arranged such that an inert gas current resulting therebetween flows around the sealing seam during sealing of the package. The method provides a flow of inert gas around the sealing seam during sealing of the package.

Abstract: The invention pertains to a device and a method for sealing a package with a sealing seam by partially fusing together the packaging material, and a supply system for protective gas. The device includes a gas supply for inert gas and an inert gas outlet opening, wherein the gas supply for inert gas and the inert gas outlet opening are arranged such that an inert gas current resulting therebetween flows around the sealing seam during sealing of the package. The method provides a flow of inert gas around the sealing seam during sealing of the package.

Abstract: A valve comprising a valve needle, a valve housing, and a valve face for introducing a medium into a container. When the valve is closed, the front face of the valve needle and the valve housing are substantially flush with an inner surface of the container. Low tolerance range fits can be provided between the container and the valve housing and/or between the valve housing and the valve needle.

Abstract: A valve comprising a valve needle, a valve housing, and a valve face for introducing a medium into a container. When the valve is closed, the front face of the valve needle and the valve housing are substantially flush with an inner surface of the container. Low tolerance range fits can be provided between the container and the valve housing and/or between the valve housing and the valve needle.

Abstract: The apparatus for providing a measured amount of a low boiling liquefied gas which can flow from an outlet of a thermally insulated container includes a fleece made of natural material, plastic material or metal connected with the outlet of the container, advantageously located immediately downstream of the outlet. This fleece provides a satisfactory separation of liquid and gas phases and thus a laminar liquefied gas flow and can assist in preventing freezing at the outlet due to moisture in the air. Advantageously a precise regulating valve which is sunk in the liquefied gas in the supply container provides continuous regulation of the liquefied gas flow.