Respirator flow control apparatus and method
US9868001B2 · kind B2 · utility
19Cited by
68References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 3, 2008 |
| Grant date | Jan 16, 2018 |
| Priority date | — |
| Expiry date | Dec 23, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62B18/003
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An air flow control system for a respirator (10) is described which includes a shell that defines a breathable air zone for a user (18) wearing the respirator (10), an air delivery conduit (27) within the shell of the respirator, and a valve member (557) moveable relative to the air delivery conduit and within the shell to vary the air flow through the air delivery conduit. The air flow control system also includes an outer device (46) outside of the shell of the respirator that is rotatable by a user (18) of the respirator while wearing the respirator to control movement of the valve member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.