Coupling assembly for fluid delivery

An intermediate transition device for interconnecting a fluid distribution source or fluid reservoir to a conduit, comprising:

• an elongated adapter body that includes:
• a first outlet end and an opposite second inner attachment end;
• an adapter bore that tapers radially inwardly from the first outlet end to a uniform diameter and then extends with the uniform diameter to the second inner attachment end;
• exterior engagement structure for engagement to an outlet of the fluid distribution source or an inlet of the fluid reservoir;
• at least one rib inboard of the engagement structure and circumambient the adapter body for providing an abutment surface for the adapter body when the adapter body is secured to the outlet or inlet;
• a pair of externally threaded stepped sections adjacent the rib and circumjacent that part of the adapter bore that is of uniform diameter;
• a ring portion for assembly to the adapter body including:
• at least one protrusion coaxially extending from the ring portion and the protrusion having a first inner threaded portion;
• a lip extending laterally from the protrusion and integrally formed therefrom, the lip and the protrusion capable of engaging and locking onto the conduit;
• at least one inner annular channel adjacent the protrusion and terminating with an abutment;
• a flange coextensive with the channel and bordering the channel;
• a pair of internally threaded stepped sections for mateable engagement to the threaded stepped sections of the adapter body;
• and
• the adapter body and the ring portion capable of sealable interfitting assembly for operating as an integral one piece unit so that the conduit can be interconnected to the fluid distribution source thereby allowing conveyance of the fluid from the fluid distribution source a fluid reservoir through the adapter bore and ring portion to the conduit, or from the conduit through the ring portion and adapter bore to the fluid reservoir.

A transition device for interconnecting an outlet of a fire hydrant to a hose, comprising:

• an elongated, generally cylindrical body portion having a first hydrant connection end and an opposite ring portion defining a second hose connection end;
• a fluid conveyance bore tapering radially inwardly from the first connection end to a uniform diameter and then extending through the body portion to the second hose connection end of the ring portion while maintaining the uniform diameter;
• engagement structure adjacent the first connection end for mateable engagement to the outlet;
• a circumferential rib adjacent the engagement structure for providing an abutment for the outlet when the hydrant connection end has been completely engaged with the outlet;
• at least one stepped threaded section adjacent the rib and circumjacent that portion of the fluid conveyance bore that is of uniform diameter;
• the ring portion for interfitting assembly to the cylindrical body portion including:
• at least one protrusion integrally formed from the ring portion and extending coaxially therefrom, a lip laterally projecting from the protrusion, an interior surface that is coextensive with the protrusion and the interior surface conforming to the curvature of the fluid conveyance bore, a first inner threaded portion formed on the interior surface, a second interior threaded portion circumambient that portion of the fluid conveyance bore that is of uniform diameter, the second interior threaded portion located adjacent and inboard of the first inner threaded portion, at least one inner annular channel adjacent the protrusion for cooperating with the protrusion and the lip to secure the hose to the ring portion;
• and
• the first inner threaded portion and the second interior threaded portion capable of threadable engagement to the stepped threaded section for attaching the ring portion to the body portion so that fluid can be directed from the outlet of the fire hydrant through the fluid conveyance bore and thence to the hose.

A transition device for interconnecting an outlet of a fire hydrant to a hose, comprising:

• a cylindrical body portion for attachment to the outlet, the cylindrical body portion having a first outlet end, an oppositely disposed interior end, a fluid conveyance bore tapering radially inwardly from the first outlet end to a uniform diameter and then extending through the cylindrical body portion to the interior end while maintaining the uniform diameter throughout, and a plurality of exterior stepped threaded sections circumjacent that portion of the fluid conveyance bore that is of uniform diameter;
• a ring portion for sealable securement to the cylindrical body portion, the ring portion including at least one protrusion integrally formed from the ring portion and coaxially extending therefrom, a lip laterally projecting from the protrusion, an interior surface that is coextensive with the protrusion and which conforms to the curvature of the fluid conveyance bore, a first inner threaded portion formed on the interior surface, a second interior threaded portion circumambient that portion of the fluid conveyance bore that is of uniform diameter and which is located adjacent and inboard of the first inner threaded portion, at least one inner annular channel adjacent the protrusion for cooperating with the protrusion and lip to secure the ring portion to the hose;
• and
• the first inner threaded portion and the second interior threaded portion of the ring portion capable of sealable interfitting external engagement to the stepped threaded sections of the cylindrical body portion for mounting the ring portion on and around the cylindrical body portion so that fluid can be directed from the outlet of the fire hydrant through the fluid conveyance bore and to the hose.

A transition device for interconnecting the outlet of a fluid source or the inlet of a fluid reservoir to a conduit, comprising:

• a cylindrical body portion having a first outlet end, an opposite second interior end, a plurality of annular exterior threaded sections with each exterior threaded section having a diameter that differs from the diameters of the other threaded sections, a fluid conveyance bore extending through the cylindrical body portion from the first outlet end to the second interior end and the fluid conveyance bore tapering radially inwardly from the first outlet end to a uniform diameter and then maintaining the uniform diameter to the second interior end;
• a ring portion for sealable attachment to the cylindrical body portion, the ring portion including a ring bore that is coaxial with the fluid conveyance bore when the ring portion is assembled to the cylindrical body portion, at least one protrusion integrally formed from the ring portion and extending coaxially therefrom, the protrusion including a laterally extending lip and an interior body surface having a first inner threaded portion, a second interior threaded portion circumjacent the ring bore and capable of mateable engagement to at least one of the annular threaded sections, at least one inner annular channel adjacent the protrusion and cooperating with the protrusion for attaching the ring portion to the conduit;
• and
• the ring portion being externally assembled to the cylindrical body portion so that the first and second threaded portions of the ring portion are interfittingly engaged to the annular threaded sections of the cylindrical body portion whereby the ring portion is sealably and externally secured to the cylindrical body portion with the first outlet end of the cylindrical body portion connected to the outlet of the fluid source and the ring portion connected to the conduit so that fluid can be conveyed from the fluid source through the assembled cylindrical body portion and ring portion and to the conduit, or form the conduit through the ring portion and cylindrical body to the fluid reservoir.

A transition device for interconnecting the outlet of a fire hydrant to a hose, comprising:

• a cylindrical handle for securement to the fire hydrant, the cylindrical handle having an inner bore, interior annular threads and at least one pair of oppositely disposed handles that outwardly extend from the handle;
• a cylindrical adapter fitting for connection to the fire hose, the adapter fitting including an interior adapter bore and external annular adapter threads spaced along the length of the adapter fitting;
• and
• whereupon the adapter fitting is securable to the handle and the threadable engagement of the handle to the outlet of the fire hydrant causes the adapter fitting to be drawn to the outlet resulting in a sealable connection of the adapter fitting to the outlet of the fire hydrant.

A transition device for interconnecting an outlet of a fire hydrant to a hose, comprising:

• a cylindrical body portion for attachment to the outlet, the cylindrical body portion having a first outlet end, an oppositely disposed interior end, a fluid conveyance bore tapering radially inwardly from the first outlet end to a uniform diameter and then extending through the cylindrical body portion to the interior end while maintaining the uniform diameter throughout, and an exterior threaded section circumjacent that portion of the fluid conveyance bore that is of uniform diameter;
• a ring portion for sealable securement to the cylindrical body portion, the ring portion including at least one protrusion integrally formed from the ring portion and coaxially extending therefrom, a lip laterally projecting from the protrusion, an interior surface that is coextensive with the protrusion and which conforms to the curvature of the fluid conveyance bore, an interior threaded portion circumambient that portion of the fluid conveyance bore that is of uniform diameter, at least one inner annular channel adjacent to the protrusion for cooperating with the protrusion and lip to secure the ring portion to the hose;
• and
• the threaded portion of the ring portion capable of sealable interfitting external engagement to the threaded sections of the cylindrical body portion for mounting the ring portion on and around the cylindrical body portion so that fluid can be directed from the outlet of the fire hydrant through the fluid conveyance bore and to the hose.