Abstract: The object of the invention is an air supply unit (1) for recovering heat energy from an air stream (e.g., exhaust air) and transferring the heat energy to another air stream (e.g., supply air). The air supply unit (1) comprises a casing (25), in the casing (25) an exhaust air channel (4) for leading exhaust air (2) through the casing (25) of the air supply unit (1), in the casing (25) a supply air channel (7) for leading supply air (7) through the casing (25) of the air supply unit (1), and in the casing (25) a heat exchanger (10) for transferring heat energy between the exhaust air (2) flowing in the exhaust air channel (4) that leads through the casing (25) and the supply air (3) flowing in the supply air channel (7). In the casing (25), the air supply unit (1) comprises a heat pump (11) having a first heat interchanger (12) having a first interior for refrigerant, and a second heat interchanger (13) having a second interior for refrigerant.

Abstract: A closure device for packages having at least one self-adhesive closure element is disclosed. It comprises a self-adhesive glue layer (L1, L2) on the closure element, arranged for closing of the package. A release layer (F1, F2) covers the glue layer (L1, L2). At least one tear strip (G1, G2) is provided such that it can be torn through the package when the package is closed to form an opening. The tear strip (G1, G2) is provided on a part of the package forming the closure element, and on one side thereof that is facing inwards when the package is closed. Finally, the tear strip (G1, G2) is provided with a silicone layer on the side thereof facing the material of the package when the package is in a closed condition.

Abstract: A closure device for packages having at least one self-adhesive closure element is disclosed. It comprises a self-adhesive glue layer (L1, L2) on the closure element, arranged for closing of the package. A release layer (F1, F2) covers the glue layer (L1, L2). At least one tear strip (G1, G2) is provided such that it can be torn through the package when the package is closed to form an opening. The tear strip (G1, G2) is provided on a part of the package forming the closure element, and on one side thereof that is facing inwards when the package is closed. Finally, the tear strip (G1, G2) is provided with a silicone layer on the side thereof facing the material of the package when the package is in a closed condition.

Abstract: A closure device for packages having at least one self-adhesive closure element is disclosed. It comprises a self-adhesive glue layer (L1, L2) on the closure element, arranged for closing of the package. A release layer (F1, F2) covers the glue layer (L1, L2). At least one tear strip (G1, G2) is provided such that it can be torn through the package when the package is closed to form an opening. The tear strip (G1, G2) is provided on a part of the package forming the closure element, and on one side thereof that is facing inwards when the package is closed. Finally, the tear strip (G1, G2) is provided with a silicone layer on the side thereof facing the material of the package when the package is in a closed condition.

Abstract: A package, such as for perilous samples, comprises a compartmented package body having first and second layers disposed, respectively, to opposite sides of an intermediate layer, with a first compartment disposed between the first and intermediate layers and a second compartment disposed between the second and intermediate layers. Each compartment has an opening and an associated adhesive sealing flap for sealing the opening. The openings, with the associated sealing flaps, are disposed at opposite ends of the package body. The sealing flaps are provided with removable tear strips for opening the corresponding compartments. A preferred method for producing the package utilizes three sheet materials corresponding to the layers of the package body. Portions corresponding to the flaps are provided at opposite edges of the sheet material corresponding to the second layer. The portions are slotted and material of the tear strips is attached to cover the slots on one side.

Abstract: The invention relates to a package with shock-absorbing material for shipment of risk samples contained, for instance, in a primary package. The package of the invention includes a shock-absorbing, translucent inner casing with liquid-absorbing material therein and a partly translucent outer casing with a cover flap which seals both the inner and outer casings. A specification or other document may be inserted in a compartment intermediate the respective casings, and means are provided to prevent reading of the document from the outside.