High air velocity duct board having minimal turbulence

Details High air velocity duct board having minimal turbulence High air velocity duct board having minimal turbulence

1996-11-21

1998-07-21

Watkins, III, William P.

Stock material or miscellaneous articles

Hollow or container type article

Glass, ceramic, or sintered, fused, fired, or calcined metal...

428 359, 428 361, 4284111, 428441, 428219, 138149, 442219, 442273, 442212, 442415, F16L 914, B32B 1702

Patent

active

057832684

ABSTRACT:
A rigid fiber glass duct board for air ducts in which the air contacting surface is a mat facing formed from a saturated polyester/glass mat which presents a smooth surface to flowing air and hence avoids surface degradation at very high air velocities. A method of forming such a board is also disclosed.

REFERENCES:
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patent: 3212529 (1965-10-01), Ullman et al.
patent: 3394737 (1968-07-01), Hoffmann et al.
patent: 3768523 (1973-10-01), Schroeder
patent: 4709523 (1987-12-01), Broderick et al.
patent: 4839222 (1989-06-01), Jain
patent: 4968556 (1990-11-01), Jain
patent: 5300592 (1994-04-01), Kanagawa et al.

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