Device for venting air from or supplying air to a room
AssigneeRheinmetall Waffe Munition GmbH
InventorIngomar Welke
Life of this patent
Estimating the term…
Abstract
The invention relates to a device for venting or supplying air to a room, said room being delimited by walls. The room is completely surrounded by the walls and has a ventilation system for supplying an airflow in order to exchange the air in the room with the air outside of the room. For this purpose, the closed room is interrupted by an opening through which the airflow can enter or exit the room. The opening is then covered by at least three perforated plates, wherein the perforated plates are arranged in a layered manner relative to one another, and the perforated plates have two different degrees of hardness.
Claims17
A device for removing air from, or supplying air to, a space that is surrounded by walls, the device comprising:
- a ventilation system for generating an air flow;
- an opening in at least one of the walls at which the air flow begins or ends;
- at least three perforated plates covering the opening, the at least three perforated plates being arranged in layers relative to one another, the at least three perforated plates having two different hardnesses and the at least three perforated plates each being rigidly fixed with respect to one another.
Dependencies are inferred from the claim text.