Removable interior window unit for aircraft

In an aircraft having a pressure window mounted in the hull, an interior window assembly comprising:

• an interior wall panel mounted within the aircraft and spaced from said hull, said interior wall panel havng a window opening formed therein in register with said pressure window, the portions of said wall panel surrounding said window opening being of stiffly flexible sheet members that are flexed upon insertion of said window assembly into said window opening, the internal tendency of said wall panels to return to their unflexed state providing a bias force on said wall panel portions in an inboard direction;
• a rigid windowpane mounted in a frame, said frame being of substantially the same size as said window opening;
• a first flange extending from an inboard end of said frame, said first flange being of a dimension larger than the window opening, such that portions of said wall surrounding said window opening abut said first flange;
• and,
• frame constraint means affixed to said hull adjacent said pressure window and removably engaging said window frame to resist movement of said frame in an inboard direction.

In an aircraft having a pressure window mounted in the hull, an interior window assembly comprising an interior wall panel mounted within the aircraft, and spaced from said hull, said interior wall panel having a window opening formed therein in register with said pressure window, the portions of said wall panel surrounding said window opening being biased in an inboard direction;

• a rigid windowpane mounted in a frame, said frame being of substantially the same size as said window opening;
• a first flange extending from an inboard end of said frame, said first flange being of a dimension larger than the window opening such that portions of said wall surrounding said window opening abut said first flange;
• a second flange extending outwardly from said frame positioned within the space between said interior wall and said hull;
• and
• frame constraint means affixed to said hull adjacent said pressure window and removably engaging said window frame, said frame constraint means including a spring arm having a first end affixed to said hull and a second end of substantially hook shape that releasably engages said second flange to restrain said window frame from inboard movement.

In an aircraft having a pressure window mounted in the hull, an interior window assembly comprising:

• an interior wall panel mounted within the aircraft, and spaced from said hull, said interior wall panel having a window opening formed therein in register with said pressure window, the portions of said wall panel surrounding said window opening being biased in an inboard direction;
• a rigid windowpane mounted in a frame, said frame being of substantially the same size as said window opening;
• a first flange extending from an inboard end of said frame, said first flange being of a dimension larger than the window opening such that portions of said wall surrounding said window opening abut said first flange;
• a second flange extending outwardly from said frame positioned within the space between said interior wall and said hull;
• frame constraint means affixed to said hull adjacent said pressure window and removably engaging said window frame to resist movement of said frame in an inboard direction, said frame constraint means including first and second spring arms, each of said spring arms having a first end affixed to said hull and a second end of substantially hook shape that releasably engages said second flange to restrain said frame from inboard movement, said first and second spring arms being spaced from one another and engaging said second flange on opposite sides of said frame, said frame including release openings adjacent said second flange to permit access to each of said spring arms from the interior of said aircraft;
• first and second clip members, each of which is releasably affixed to said second flange in the area of engagement of the respective spring arms with said second flange, each said clip member having a trip hole formed therein in register with its associated release hole;
• and
• a shade mounted on said frame inboard of said windowpane and operable between a position in which it covers said windowpane and a position in which it is contained within said frame, said frame including a guide channel in which said window shade travels, said first and second release holes being formed in said guide channel.