Apparatus for applying a modifying ingredient to open-celled polyurethane material
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United States of America Patent
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Aug 18, 1987
Grant Date -
N/A
app pub date -
Feb 20, 1986
filing date -
Feb 20, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for applying a modifying ingredient to a mass of open-celled polyurethane foam includes the application of an excess of a liquid solution or dispersion of the modifying ingredient to the mass of foam. A fixed frame mounts a plurality of spaced, generally parallel lower backing rollers. A movable frame is mounted above the fixed frame and carries a plurality of spaced, generally parallel pressure rollers for movement toward and away from the backing rollers. A first adjustment device is provided for lowering the movable frame to move the pressure rollers toward the backing rollers, with the mass sandwiched therebetween. A plurality of second adjustment devices are spaced at locations about the rollers for adjusting the pressure between the backing rollers and the pressure rollers uniformly along the rollers both in a direction transversely to and in the direction of movement of the mass through the rollers.
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