Pipe joints or couplings – With strain relief – Extension of socket or sleeve
Patent
1980-05-08
1982-02-02
Callaghan, Thomas F.
Pipe joints or couplings
With strain relief
Extension of socket or sleeve
285246, 285259, 285387, 285DIG22, F16L 3324
Patent
active
043136281
ABSTRACT:
A connection at which two hoses or similar conduits are coupled includes a male coupling on one of the hoses and a female coupling on the other hose. The male coupling consists of a body that receives the hose and a tapered bushing which threads into the hose and spreads it outwardly into the body. The body has a threaded end section. The female coupling consists of a threaded ring having an inwardly opening groove, a ferrule that receives the hose and has at its one end a flange which fits into the groove of the ring, and a tapered bushing that threads into the hose and expands it against the ferrule. When the hose and bushing are out of the ferrule, the flange of the ferrule will fit into the ring, but when the hose is expanded outwardly by the bushing, the flange of the ferrule is captured in the groove of the ring. The ring threads over the threaded end section of the male coupling and forces the ends of the threaded section and the ferrule together. Since both the body of the male coupling and the ferrule of the female coupling are formed from a somewhat flexible material, an extremely good seal is created at the area of abutment. The end of the ring also abuts against a shoulder on the body of the male coupling, while the ring along the side wall of its groove bears tightly against the flange on the ferrule of the female coupling, forming very secure seals at these locations also. This redundancy of seals renders the connection virtually leakproof.
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