Coupling device and method for manufacturing a grip ring to be used in such a coupling device
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United States of America Patent
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Jan 10, 2012
Grant Date -
Jun 23, 2011
app pub date -
Dec 23, 2010
filing date -
Jun 26, 2008
priority date (Note) -
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Abstract
A coupling device for a tube comprising a coupling piece with an insert end for the tube and a sealing organ which is suitable for realizing a seal around the tube inserted in the coupling piece, whereby the sealing organ comprises a series of elements which together form a ring enclosing the tube, and whereby the elements have been provided with at least one grip ring, extending over at least a part of the circumference of the tube, which at least one grip ring is embodied with inwardly and/or outwardly pressed out first projections and second projections extending away from the surface of the grip ring, whereby the first projections and the second projections are provided with, in the plane of these projections extending first anchor teeth and second anchor teeth.
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