Patent ID: 6766832
Filing Date: 2004-07-27
Classification: F16L,F24F,Y10S

Abstract:
A transitional telescoping plenum apparatus comprising:a first tier including at least first, second, third, and fourth corner sections interleaved to provide said first tier with an at least four-sided configuration that is adjustable in width and length dimensions, said first tier providing a mounting flange at a first edge thereof and a tier-connecting flange at a second edge thereof; and a second tier including at least first, second, third, and fourth corner sections interleaved to provide said second tier with an at least four-sided configuration complimentary to said at least four-sided configuration of said first tier and adjustable in width and length dimensions, said second tier providing a tier-connecting flange at a first edge thereof communicating with said tier-connecting flange of said first tier to connect said first and second tiers, wherein the height of the transitional telescoping plenum apparatus is adjustable according to the distance maintained between said tier-connecting flanges of said first tier and said second tier.