Pipe joints or couplings – Particular interface – Annular socket
Patent
1998-03-26
2000-02-08
Nicholson, Eric K.
Pipe joints or couplings
Particular interface
Annular socket
285354, 285246, 285423, F16L 1900
Patent
active
060220538
ABSTRACT:
A joint for coupling tubes forming a large diameter portion near one end of a fluorocarbon resin tube and forming a fastened portion by clamping at a crimp portion of the large diameter portion with a cap nut includes of a main body of rigid resin joint having a cylindrical portion formed a ring-shaped groove and cut a bevel at its inner wall end and a hard cap nut having a inner shoulder formed an acute-angle hook. The major portion of the large diameter portion of the fluorocarbon resin tube is inserted into the ring-shaped groove. A tube clamp portion as a hermetic portion is formed to press hard a tube crimp portion against the inner wall end of the cylindrical portion with the inner shoulder of the hard cap nut by tightening the hard cap nut on an external thread of the outer wall of the cylindrical portion.
REFERENCES:
patent: 545928 (1895-09-01), Whitmore
patent: 771682 (1904-10-01), Sussman
patent: 2544108 (1951-03-01), Richardson
patent: 4508374 (1985-04-01), Kantor
Flowell Corporation
Nicholson Eric K.
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