| 发明名称 |
DIAPHRAGM |
| 摘要 |
A diaphragm for a lung demand valve, including a CBRN layer which is sufficiently resistant to the permeation of at least some CBRN agents and a resilient layer which is resiliently deformable. The CRBN layer is arranged to restrict the permeation of at least some CBRN agents through the diaphragm, and the resilient layer is arranged to allow the diaphragm to be resiliently deformed. |
| 申请公布号 |
US2017036045(A1) |
申请公布日期 |
2017.02.09 |
| 申请号 |
US201615295535 |
申请日期 |
2016.10.17 |
| 申请人 |
Draeger Safety UK Limited |
发明人 |
Townsend Paul |
| 分类号 |
A62B9/02;A62B18/10;B01D53/22;F16K7/17;F16K31/126;A62B7/10;A62B7/04 |
主分类号 |
A62B9/02 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A lung demand valve, comprising:
a housing; a valve assembly for controlling the supply of breathable gas to a user; a diaphragm disposed and sealed within the housing for controlling the valve assembly and which responds to the inhalation and exhalation of the user, the diaphragm having a first outer side exposed to ambient conditions and a second inner side exposed to breathable gas, wherein the diaphragm is continuous and prevents the fluid flow across the diaphragm and is of a laminate structure comprising a resilient skeleton layer which provides resilient characteristics to the diaphragm and a continuous barrier layer arranged to restrict the permeation of at least some hazardous agents through the diaphragm. |
| 地址 |
Blyth GB |
