Pipe joints or couplings – Particular interface – Tapered
Patent
1995-07-05
1997-08-19
Melius, Terry Lee
Pipe joints or couplings
Particular interface
Tapered
2853824, 29511, 29516, 29520, F16L 3500
Patent
active
056580258
ABSTRACT:
A flare-tube assembly is provided that includes a tube having a flare at a forward end thereof which angles outwardly and rearwardly and is generally S-shaped in cross-section. The flare-tube assembly also includes an inverted flare fitting which has external threads, an opening extending therethrough, and a shoulder encircling the opening at a forward end of the fitting. The shoulder has a recessed portion near an outer diameter of the shoulder which is inwardly arcuate in cross-section. The tube extends through the opening with the shoulder of the fitting facing a rear side of the flare. During installation, the fitting is torqued such that the shoulder of the fitting first engages and compresses an outer portion of the flare to form a seal at the outer portion. Upon further torquing, the shoulder of the fitting engages the entire surface of the flare to compress the entire flare.
REFERENCES:
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patent: 5439259 (1995-08-01), Taga et al.
Melius Terry Lee
Shackelford Heather
Universal Enterprises Inc.
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