Pipe joints or couplings – Nonmetal to metal – Internal member
Patent
1995-06-30
1997-04-22
Nicholson, Eric K.
Pipe joints or couplings
Nonmetal to metal
Internal member
285247, 285259, F16L 3322
Patent
active
056223935
ABSTRACT:
A re-usable fitting for a flexible hose includes a body and a nut that have opposed tapering ribs or barbs in complementary pairs that engage the hose substantially as the body and nut are fully tightened. The body forms a hollow nipple extending from a base portion to a head with a series of axially spaced annular barbs and has screw thread formed near the base. Inserting the nipple into an end of the hose flares the end of the hose. The nut has internal screw threads and a complementary set of opposite barbs. Tightening the nut on the nipple displaces the opposed barbs axially until aligned in complementary pairs to annularly constrict the hose. Each annular constriction is smaller than the wall thickness of the hose, both engaging the hose and displacing the hose into gaps on opposite axial sides of each annular constriction.
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Cooling Norman B.
Elbich Robert J.
Nicholson Eric K.
Pure Fit Incorporated
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