Ductwork for delivery of low temperature air

Details Ductwork for delivery of low temperature air Ductwork for delivery of low temperature air

1992-12-24

1995-02-28

Reese, Randolph A.

Pipe joints or couplings

With casing, lining or protector

Insulated

285915, 138153, 138170, 138128, F16L 1112

Patent

active

053931050

ABSTRACT:
A duct device for insulated delivery of temperature controlled air. The device comprises an elongated, tubular member configured as a conduit for delivery of air and having a tubular wall fabricated of non-load-bearing insulative material. This insulated material includes at least one continuous gap formed into the tubular wall and extending along the tubular member. This gap is filled with a rigid binder which bonds to the insulative material and is capable of reinforcing the structural strength of the tubular member. This binder filled gap operates as a strut, which may be positioned longitudinally along the tubular member, or in other patterns such as a helical configuration. Reinforcing structure is also disclosed for the end sections of the tubular member, along with interconnecting structure.

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Military Standardization Handbook-Plastics pp. 43-44-on polyethylenes.

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