Hose fitting having ferrule anti-rotation ratchet teeth

A hose fitting adapted to be coupled to an open end of a flexible hose, said fitting comprising:

• a tubular member formed from a polymeric material and including first and second ends and having helical barbs on an outer surface thereof disposed between said first and second ends for deforming said hose when said tubular member is inserted into an open end of said hose;
• a fluid coupling connected to said hose fitting proximate said first end of said tubular member for allowing said fitting to be attached to other fluid components;
• a wall disposed between said tubular member and said fluid coupling and extending outwardly and circumferentially about said tubular member, said wall including ratchet teeth thereon;
• and,
• a ferrule formed from a polymeric material and having a helical groove on an inner surface thereof for allowing said ferrule to be threaded onto deformations in said hose created by said helical barbs of said tubular member, said ferrule having an end surface including ratchet teeth for engaging said ratchet teeth on said wall and locking said ferrule to said wall when said ferrule is threaded on the deformations in said hose.

A combined hose and fitting comprising:

• a flexible hose;
• a tubular member having protrusions on an outer surface portion thereof, said tubular member being inserted in the open end of said hose such that said protrusions deform said hose, said tubular member further including ratchet teeth extending outwardly of an outer surface of said hose when said tubular member is inserted into said hose;
• and,
• a ferrule having a female threaded inner surface threadingly engaging said outer surface of said hose, said ferrule further including ratchet teeth for engaging said ratchet teeth of said tubular member, wherein said ferrule is locked to said tubular member through engagement of the respective ratchet teeth of said ferrule and said tubular member.

A combined hose and fitting comprising:

• a flexible hose;
• a tubular member having a helical protrusion on an outer surface portion thereof, said tubular member being disposed within the open end of said hose such that said helical protrusion deforms said hose, said tubular member further including ratchet teeth extending outwardly of an outer surface of said hose;
• and,
• a ferrule having a female threaded inner surface threadingly engaging said outer surface of said hose, said ferrule further including ratchet teeth for engaging said ratchet teeth of said tubular member, wherein the inner surface of said ferrule is threaded in a direction allowing the ferrule to be rotated on the hose and moved toward the open end of said hose until the respective ratchet teeth of said ferrule and said tubular member engage each other to prevent rotation of said ferrule in an opposite direction.