Combined air-supplying/air-purifying system
US7748380B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 6, 2005 |
| Grant date | Jul 6, 2010 |
| Priority date | — |
| Expiry date | Aug 21, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62B18/006
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A combined air-supplying/air-purifying breathing system that includes a self-contained breathing apparatus, a facepiece for delivering breathable air from the self-contained breathing apparatus to a user, and a powered air-purifying respirator having at least one filter and a blower and having an output connected by a hose assembly to the facepiece. A control interface operationally connects the self-contained breathing apparatus to the powered air-purifying respirator. The self-contained breathing apparatus includes a pressure vessel, a cylinder valve assembly and a pressure reducer, all carried by a back frame, and the powered air-purifying respirator is adapted to be mounted on, and carried by, the back frame, by coupling the back frame and the respirator together at respective attachment points.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.