公开(公告)号：US4512244A

公开(公告)日：1985-04-23

申请号：US554601

申请日：1983-11-23

Applicant: Jan J. Knaap

Inventor： Jan J. Knaap

IPC: E06B7/02 ,  F24F13/18

CPC classification number: E06B7/02

Abstract: A closable ventilation grating of the type having two grids, one being slidable along the other, which is adapted for use with sealed unit insulating glass is disclosed. The grating comprises a lower, hollow member which has parallel pending flanges for mounting the grating on sealed unit insulating glass. The grating also comprises grids which are easily adaptable to a desired length as they are comprised of a number of similar, standardized sections and a standardized operating section where required.

Abstract translation: 公开了一种具有两个格栅的可关闭通风格栅，其中一个可以沿另一个滑动，适用于密封单元中空玻璃。 光栅包括下部中空构件，其具有用于将光栅安装在密封的单元中空玻璃上的平行待定凸缘。 光栅还包括可以容易地适应期望长度的网格，因为它们由多个相似的标准化部分和需要的标准化操作部分组成。