| 发明名称 |
PRESSURE DIFFERENTIAL INDICATOR WITH FIRE STOP |
| 摘要 |
An across the wall pressure differential indicating apparatus comprising a wall duct having first and second open ends, first and second mounting plates respectively attached to the wall duct at the first and second open ends respectively, a low speed airflow indicator adapted to indicate a pressure differential and mounted in fluid communication with the wall duct such that substantially all airflow passing through the wall duct also passes through the indicator, and an intumescent material disposed in the wall duct between the first and second ends. |
| 申请公布号 |
US2015268118(A1) |
申请公布日期 |
2015.09.24 |
| 申请号 |
US201414218228 |
申请日期 |
2014.03.18 |
| 申请人 |
PYLE Robert D |
发明人 |
PYLE Robert D |
| 分类号 |
G01L13/00;G01F1/28 |
主分类号 |
G01L13/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An across the wall pressure differential indicating apparatus comprising:
a wall duct having first and second open ends, first and second mounting plates respectively attached to the wall duct at the first and second open ends respectively, a low speed airflow indicator adapted to indicate a pressure differential and mounted in fluid communication with the wall duct such that substantially all airflow passing through the wall duct also passes through the indicator, and an intumescent material disposed in the wall duct between the first and second ends. |
| 地址 |
Cincinnati OH US |
