Composite curtain assembly for continuous furnace entrance and exit
OwnerNgoc N. Nguyen, Carole S. Nguyeninventors
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Abstract
An insulating curtain assembly for a continuous furnace, having an extremely durable woven metal-wire covering protecting a thermal insulating fabric which lacks durability. A plurality of horizontally oriented hinges enable the curtain to closely follow a top surface of products having varying thicknesses when those products are entering or exiting the furnace.
Claims15
An insulating curtain assembly for a continuous furnace having a product entry opening and a product exit opening at longitudinal ends of the furnace, each opening extending horizontally between furnace side walls and extending vertically from a product conveying surface to a furnace end wall, each curtain assembly comprising
- a woven metal-wire fabric having a plurality of elongated segments arranged side-by-side and hingedly connected to each other along hinging axes, for hanging vertically in a furnace opening with said hinging axes oriented parallel to the conveyor surface, and
- a thermal insulating fabric arranged as backing to at least a portion of said woven metal-wire fabric, for providing an insulating heat barrier for blocking an opening of the furnace,
- wherein when hanging vertically in said furnace opening a face of said woven metal-wire fabric is directed so as to be encountered by product moving along said product conveying surface whereby said thermal insulating fabric is protected from encountering said product.
Dependencies are inferred from the claim text.