发明名称 |
VENT WITH SCREEN OR PERFORATED ELEMENT |
摘要 |
A vent includes an outer element including an outer perforated area having at least one perforation and an inner element having at least one perforation and a peripheral portion. The outer element and the inner element are separated by a distance to define a plenum between the outer element and the inner element. |
申请公布号 |
US2012085051(A1) |
申请公布日期 |
2012.04.12 |
申请号 |
US20100901263 |
申请日期 |
2010.10.08 |
申请人 |
PEREZ DAVID;ALSAGER RICHARD L. |
发明人 |
PEREZ DAVID;ALSAGER RICHARD L. |
分类号 |
E04B1/70;E04C2/38;E04C2/52 |
主分类号 |
E04B1/70 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|