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COUPLING WITH TONGUE AND GROOVE

  • US 20150020371A1
  • Filed: 10/03/2014
  • Published: 01/22/2015
  • Est. Priority Date: 01/20/2012
  • Status: Active Grant
First Claim
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1. A method of coupling first and second pipe elements in end-to-end facing relationship comprising:

  • obtaining a coupling, the coupling includingan annular gasket, the annular gasket including at least one sealing surface directed radially inwardly and an outer surface directed radially outwardly;

    at least one segment, each segment being approximately semi-circular and including at least one inner surface, at least one outer surface, a first end and a second end, each segment including a fastener pad protruding proximate to each end, each fastener pad defining a fastener hole, the first end including a tongue and the second end including a groove, each tongue including an inner surface and protruding circumferentially from each first end, each groove defined circumferentially in each second end, each groove defined circumferentially in at least one end; and

    at least one fastener, wherein at least one portion of a shaft portion of the fastener is sized to engage at least one fastener hole in at least one segment;

    slipping the coupling onto the first pipe element;

    aligning the second pipe element in end-to-end facing relationship with the first pipe element; and

    engaging each fastener to deform each segment into contact with the outer surfaces of the first and second pipe elements.

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