Abstract: A spring bridge (40), for a spring bridge breathing bag plate system (80) of a closed-circuit respirator (100), includes a spring bridge carrier (42) for the arrangement of at least one spring element (82) of a spring bridge breathing bag plate system (80) and at least one fastening element (44) for holding the spring bridge (40) at the closed-circuit respirator (100). The at least one fastening element (44) is a rotating element and/or a sliding element for the rotatable and/or sliding movement of the spring bridge carrier (42) at and relative to the closed-circuit respirator (100). A spring bridge breathing bag plate system (80) is provided for a closed-circuit respirator (100) as well as for a closed-circuit respirator (100).

Abstract: A filter unit (100) is configured to filter a gas and/or particles out of a gas mixture, especially out of breathing air. A process is provided for manufacturing such a filter unit. A shell surface (M) of a rigid filter (1), for example, including activated carbon, is enclosed by a flexible jacket (3). The jacket is enclosed with a rigid cover (2, 5) at the outflow-side end. The process includes inserting the filter into a shaping body, so that a gap remains between the inner wall of the shaping body and the shell surface (M) of the filter. Free-flowing material is inserted into this gap, and this material forms the jacket after a curing. A second manufacturing process includes cutting a piece off from a tube and pulling over the shell surface (M) of the filter. The piece of tube then forms the jacket of the filter.

Abstract: A cooling element system (100), for use within a cooling device (590) of a closed-circuit respirator (691), includes a plurality of cooling elements and a collar (120). The cooling elements each have an element housing (112), having a liquid-tight closure (114), filled or fillable with a coolant. The element housings allow for a common mounting arrangement of the number of cooling elements within the cooling device. The collar encloses the cooling elements in the common mounting arrangement and has a carrying area (122), which is configured to carry the number of cooling elements in the common mounting arrangement at the carrying area. A removal of the number of cooling elements, in the common mounting arrangement, from the cooling device and an insertion into the cooling device, are possible by means of the carrying area.

Abstract: A spring bridge (40), for a spring bridge breathing bag plate system (80) of a closed-circuit respirator (100), includes a spring bridge carrier (42) for the arrangement of at least one spring element (82) of a spring bridge breathing bag plate system (80) and at least one fastening element (44) for holding the spring bridge (40) at the closed-circuit respirator (100). The at least one fastening element (44) is a rotating element and/or a sliding element for the rotatable and/or sliding movement of the spring bridge carrier (42) at and relative to the closed-circuit respirator (100). A spring bridge breathing bag plate system (80) is provided for a closed-circuit respirator (100) as well as for a closed-circuit respirator (100).