Patent ID: 11883696
Assignee: DRäGER SAFETY AG & CO. KGAA
Field: Other consumer goods (Other fields)
Classification: CPC A | IPC A

Claim 16:
17. A process for the assembly of a closed-circuit breathing apparatus comprising at least one respirator component, a breathing tube with at least a plurality of corrugations and a counter-fastening section and closed-circuit breathing apparatus housing comprising a housing mount and a housing cover, the housing mount and the cover cooperating to cover a housing interior, wherein the housing mount comprises a first partial section of at least one passage opening for passage of a breathing tube into the housing interior, the housing cover comprises a second partial section of said at least one passage opening, the housing mount or the housing cover or both the housing mount and the housing cover comprises a fastening section for mechanical fastening to the counter-fastening section of the breathing tube, which the breathing tube is guided through the at least one passage opening, the at least one respirator component is mounted in the housing interior, the at least one respirator component is fluid-communicatingly connected to the breathing tube and the counter-fastening section of the breathing tube is fastened to the fastening section of the housing, the breathing tube comprising a sealing section at one end of the breathing tube configured to fluid-tightly connect the breathing tube to the at least one respirator component, the process comprising the steps of:
inserting the breathing tube into the first partial section of the at least one passage opening in the housing mount;
arranging a union nut over an interior rib of the sealing section at the one end of the breathing tube and an external groove of the at least one respirator component in the housing interior;
providing a fastened connection between the fastening section and the counter-fastening section, the fastening section being adjacent to the sealing section and at least one of the corrugations, wherein at least a portion of the fastening section is attached to the breathing tube and the at least a portion of the fastening section is positioned within the counter-fastening section, the counter-fastening section being defined by a groove that is formed between two ridges of the plurality of corrugations; and
closing of the housing with the housing cover, the fastening section being defined by an extent of both the housing mount and the housing cover.