Flexible hose coupling and swivel nut connector assembly

Claim 1

In a re-usable coupling for flexible hose assemblies in which a swivel nut is rotatably mounted on the connector end between a flanged head and a shouldered enlargement of the coupling body, the body also having inwardly thereof means for attaching a socket sleeve hose clamping means, and a reduced nipple end section insertable in the end of a hose and provided with surfaces for cooperating with said hose clamping means so as to provide a fluid tight mounting on said hose, the improvement which comprises a two piece nipple body structure having an elongated tubular nipple stem section provided with a flanged head at its fore end and extending inwardly thereof in sequence; a neck portion, a reduced central shell support portion terminating in a shallow shouldered recess, and a nipple insert portion; and a shell body section having a bore engaging said central support portion of the stem and in abutting relationship against the inner end of said neck, the shell having at its fore end a shouldered torque applying tool surface and inwardly thereof an intermediate portion provided with clamping sleeve attachment means and a shouldered inner end in the form of a thin tubular skirt extension of said shell bore, the wall of said skirt extension being compressed and annularly deformed into sealed locking engagement in said shallow recess of the stem section, whereby an internally collared swivel connector may be assembled on said neck portion prior to sealing said body sections together.