Patent ID: 6601575
Filing Date: 2003-08-05
Classification: F24C

Abstract:
A window for a hot chamber, said hot chamber being sealed off from surroundings thereof, said window comprising a multi-pane module;wherein said multi-pane module comprises at least two transparent panes (1,2); peripheral spacers (3) holding said at least two transparent panes (1,2) spaced apart from each other at a predetermined distance from each other so that said transparent panes (1,2) and said spacers (3) bound an interior space (9) between the transparent panes (1,2), wherein said at least two transparent panes are interconnected with the peripheral spacers (3) in a gas-tight fashion and said spacers (3) are provided with at least one through-going opening (5) between said interior space (9) and surroundings (10) of the multi-pane module; and a respective replaceable, permeable filter pad (6) arranged in each of said at least one through-going opening (5) so as to close said interior space (9) bounded by said transparent panes and said spacers, but wherein said permeable filter pad (6) permits gases to penetrate therethrough for gas exchange between said interior space (9) and said surroundings (10) of the multi-pane module in order to prevent pressure from building up in said interior space, but prevents water vapor and other vapors, said other vapors comprising grease, oil and contaminating particles, from entering said interior space from said surroundings (10).