Compressed air supply system for a compressed air respiratory device
US7322350B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 21, 2002 |
| Grant date | Jan 29, 2008 |
| Priority date | — |
| Expiry date | Jun 18, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62B7/02
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
In a compressed air breathing apparatus, a single combined high/medium-pressure line (8) consisting of a medium-pressure hose and a coaxial, flexible high-pressure line inside said hose is integrated into the pressure reducer (5) connected to a compressed air bottle so that said line can rotate in axial direction. The free end of the combined high/medium-pressure line (8) can also rotate in axial direction when connected to a manifold block (9) for distributing the supplied high or medium-pressure air to connections for a lung machine (11), a pressure gauge (15), and an alarm whistle (17) that is controlled at high pressure and operated at medium pressure. The manifold block (9) is equipped with an additional high-pressure fast-fill connection (14) and an additional medium-pressure connection (13). A compressed air breathing apparatus of this design is simple, convenient, and safe to handle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.