Coupling seal having ramp surfaces
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United States of America Patent
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Sep 1, 2020
Grant Date -
May 25, 2017
app pub date -
Nov 18, 2016
filing date -
Nov 23, 2015
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Abstract
A seal for a coupling joining pipe elements has angularly oriented ramp surfaces on an outer surface. The ramp surfaces are arranged in diametrically opposite pairs which are positioned at the three o'clock and nine o'clock positions at the interface between segments forming the coupling. The ramps are expected to mitigate pinching of the seals between the segments as the segments are drawn together, compressing the seals to form a fluid tight pipe joint.
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