Length adjustable earplug cord
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United States of America Patent
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N/A
Issued Date -
Oct 20, 2005
app pub date -
Apr 7, 2005
filing date -
Apr 15, 2004
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A cord-earplug set (10) which includes a cord (16) that connects together a pair of earplugs (12, 14), the cord having a length that can be readily increased by a worker who pulls apart the opposite ends of the cord. The cord has an initial length much less than the usual two feet, such as 11 to 14 inches, and is constructed so the cord can be stretched by a worker pulling apart the cord ends with a force on the order of magnitude of 15 pounds. The cord is preferably formed of an elastomeric polymer of uniform diameter along its length so when the cord ends are pulled apart (by pulling apart the earplugs) to stretch the cord, the cord sections lengthen evenly to leave a cord of approximately constant diameter along its length.
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