Respirator flow control apparatus and method
US10137320B2 · kind B2 · utility
8Cited by
64References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2014 |
| Grant date | Nov 27, 2018 |
| Priority date | — |
| Expiry date | May 4, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62B18/10
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A respirator has a shell that defines a breathable air zone for a user wearing the respirator. An air flow control system for the respirator has an air delivery conduit within the shell of the respirator, a valve member moveable relative to the air delivery conduit and within the shell to vary the amount of air flow through the air delivery conduit, and a valve actuator outside of the shell of the respirator. The valve actuator is manipulatable by a user 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.