Ductwork for delivery of low temperature air

A duct device for insulated delivery of temperature controlled air flow, said device comprising:

• an elongated, tubular member configured as a conduit for deliver of air, said tubular member having a tubular wall fabricated of non-load-bearing insulative material;
• said tubular wall having a plurality of longitudinal cuts forming open, elongate gaps extending substantially parallel with a central axis of the tubular wall and projecting into the insulative material from a surface of the tubular wall;
• a rigid binder solidified and bonded within the gap to the insulative material to provide structural stiffness both radially and axially to the duct device;
• an end reinforcing member comprising a sleeve configured to slide snugly into an end opening of the tubular member, said sleeve including a radial flange extending outward from the sleeve to form a right angle which seats against an end face of the tubular member, said end reinforcing member being bonded at an internal, contacting face and at the end face of the tubular member to strengthen the tubular member at the end opening thereof;
• and
• an interconnect sleeve having an outer wall configuration similar to an inner wall configuration of the reinforcing member and being sized to provide a secure frictional fit of the reinforcing members of two tubular devices around a single interconnect sleeve to enable intercoupling of two tubes along a common axis.

A duct device for insulated delivery of temperature controlled air flow, said device comprising:

• an elongated, tubular member configured as a conduit for deliver of air, said tubular member having a tubular wall fabricated of non-load-bearing insulative material;
• said insulative material including at least one continuous gap formed into the tubular wall and extending along the tubular member, said gap being filled with a rigid binder which bonds to the insulative material and is capable of reinforcing the structural strength of the tubular member;
• an end reinforcing member comprising a sleeve configured to slide snugly into an end opening of the tubular member, said sleeve including a radial flange extending outward from the sleeve to form a right angle which seats against an end face of the tubular member, said end reinforcing member being bonded at an internal, contacting face and at the end face of the tubular member to strengthen the tubular member at the end opening thereof;
• and
• an interconnect sleeve having an outer wall configuration similar to an inner wall configuration of the reinforcing member and being sized to provide a secure frictional fit of the reinforcing members of two tubular devices around a single interconnect sleeve to enable intercoupling of two tubes along a common axis.