CPC F16L 21/002 (2013.01) [F16L 13/103 (2013.01)] | 8 Claims |
1. A tubing coupler, the coupler comprising:
a tubular body;
a stock body portion that is grooveless; and
a first engagement end with a first set of grooves disposed thereon to engage with an inside portion of a first piece of tubing, the first set of grooves has a sidewall thickness, the sidewall thickness is greater at a central portion of the first set of grooves than the sidewall thickness of the first set of grooves adjacent to the stock body portion and greater than the sidewall thickness of the first set of grooves between the central portion and a terminal end of the first engagement end.
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