Flow-through dryer
OwnerHelio Ribeiro, William Sellars +3inventors
InventorsHelio Ribeiro, William Sellars, Crawford Williams, Ron Charno, John Kawand
Life of this patent
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Abstract
A flow-through dryer for drying webs of material comprising a rotatable drying drum having a cylindrical drum face and section flanges on the drum ends that enclose an interior space. The drum face is configured as a series of spaced pleated vent plates mounted circumferentially about the outside of drying drum. The pleated vent plates are perforated to allow air flow into the interior space and have an outer edge that is adapted to support the web of material about the drying drum.
Claims22
A rotatable drying drum for drying webs of material, the drum comprising a central axis and a drive shaft for rotating the drum about its central axis:
- a cylindrical drum face enclosing an interior space within the drying drum, the drum face being formed from a plurality of pleated vent plates mounted circumferentially about the outside of the drying drum, the pleated vent plates being perforated to facilitate air flow through the drum face into the interior space and each having an outer edge, the outer edge adapted for supporting the webs of material about the drying drum;
- and
- section flanges attached on opposite ends of the pleated vent plates.
A rotatable drying drum for drying webs of material, comprising:
- a cylindrical drum face enclosing an interior space within the drying drum, the drum face being formed from a plurality of pleated vent plates having a cross-section of an inverted V shape mounted circumferentially about the outside of the drying drum, the pleated vent plates being perforated to facilitate air flow into the interior space and each having an outer edge, the outer edge adapted for supporting the webs of material about the drying drum;
- and
- section flanges attached on opposite ends of the pleated vent plates.
A rotatable drying drum for drying webs of material, comprising:
- a cylindrical drum face enclosing an interior space within the drying drum, the drum face being formed from a plurality of pleated vent plates mounted circumferentially about the outside of the drying drum, the pleated vent plates having perforated sides extending inward and away from the respective outer edge to facilitate air flow into the interior space and each having an outer edge adapted for supporting the webs of material about the drying drum;
- wherein the sides terminate in a lower base portion having a non-perforated skirt, the base portion being located opposite the upper edge, and
- section flanges attached on opposite ends of the pleated vent plates.
Dependencies are inferred from the claim text.