Compressible coupling
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United States of America Patent
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Nov 28, 2017
Issued Date -
N/A
app pub date -
Mar 17, 2015
filing date -
Sep 17, 2012
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Abstract
A coupling comprises an inner body having an interior bore configured to receive a tube or the like. A collar is arranged to be axially received about the inner body. The collar being configured such that when it is forced onto the inner body, it applies a circumferential compressive force to deform the body inwardly. At least one interior annular projection defines one or more annular teeth arranged such that when a tube is received in the bore and the inner body is inwardly deformed by the collar, the one or more annular teeth engage the tube to seal with it. The inner surface of the bore comprises a plurality of circumferentially arranged projections defining a series of circumferentially spaced teeth axially spaced from the at least one annular protuberance and configured to engage the tube following compression of the inner body by the collar to prevent relative rotation between the tube and the inner body.
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