Adjustable width steam box for fabric processing and method of using the same
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United States of America Patent
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Jun 14, 2016
Grant Date -
Feb 6, 2014
app pub date -
Jul 31, 2013
filing date -
Jul 31, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A high efficiency steam box, particularly for the processing of fabrics. The box housing is subdivided into a plurality of steam chambers isolated from each other but communicating with a perforated steam tube which extends throughout the housing. Steam is delivered to the center portions of the steam tube and flows toward the ends. Valve pistons are movably positioned in the opposite end portions of the steam tube to confine the steam. The valve pistons are axially adjustable by a screw shaft extending through the steam tube and can be positioned to isolate outer chambers when processing narrow fabrics to prevent or minimize the discharge of steam from steam discharge slots extending beyond the edges of the fabric. Steam flow control can be integrated with positioning of the valve pistons to provide uniform steam flow per unit length of the discharge slots for optimum efficiency in processing and steam utilization.
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