Reinforced flexible tubing and method of making same
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United States of America Patent
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Nov 10, 2015
Grant Date -
Feb 14, 2013
app pub date -
Aug 12, 2011
filing date -
Aug 12, 2011
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Abstract
A method for making helically corrugated rubber tubing with a helical reinforcing element embedded therein and with a relatively smooth interior surface. The tubing is formed with separate inner and outer tubular wall portions with fabric material in between. The inner and outer wall portions may be formed of different elastomeric compositions. Also the method provides for annular cuffs at the opposite ends of the tubing.
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