Aircraft window construction

US5988566A · kind A · utility

Assignee

• Daimler Chrysler Aerospace Airbus GmbH · DE

Inventor

• Juergen Meyer · Taunusstein, DE

Key dates

• Filing date: Dec 4, 1997
• Grant date: Nov 23, 1999
• Expiry date: Dec 4, 2017

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B64C1/1492
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A window for an aircraft cabin has a first pane (3) with a high fatigue strength on the inside facing the cabin and a second pane (4) with a lower fatigue strength smaller than the first fatigue strength on the outside facing the atmosphere. The space (3A) between the window panes (3, 4) is sealed but connected through a pipe to an air pressure controller responsive to the atmospheric pressure. The pressure controller may be an air pump (12) or variable volume chambers (19, 20) for keeping the pressure in the space between the panes at the prevailing atmospheric pressure without actually venting the space to the atmosphere.