Impermeable corrugator belt for application on air bearing pressure zones of a corrugator machine
AssigneeAlbany International Corp.
InventorJoseph D. Lanthier
Life of this patent
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Abstract
An impermeable corrugator belt for a corrugator machine includes a multi-layer base fabric having a layer of a polymeric resin material on one of its two sides. When arranged in the form of an endless loop, the side having the layer of polymeric resin material is on the inside thereof. The polymeric resin material renders the corrugator belt impermeable, and therefore suitable for use on a corrugator machine having air-bearing pressure zones. Instead of a multi-layer base fabric, a spiral coil carrier may be used as the base of the corrugator belt.
Claims10
In a corrugator machine comprising air bearings which direct a high-velocity flow of air against the inside of a corrugator belt thereby forcing said belt toward hot plates on said corrugator machine, the improvement comprising an impermeable corrugator belt, said impermeable corrugator belt comprising:
- a base in the form of an endless loop having an inside and an outside;
- and
- a layer of a polymeric resin material on said inside of said base, said layer of polymeric resin material being impermeable to air so as to seal said corrugator belt to prevent the passage of said high-velocity flow of air therethrough,
- whereby said high-velocity flow of air does not cause slippage between said belt and corrugated box board being manufactured on said corrugator machine by joining a corrugated layer to an uncorrugated layer with an adhesive.
Dependencies are inferred from the claim text.