Sealed ductboard

Details Sealed ductboard Sealed ductboard

1995-06-08

1996-08-27

Nold, Charles

Stock material or miscellaneous articles

Hollow or container type article

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

428 3691, 428 364, 428 60, 428218, 138143, 138149, 138DIG4, F16L 5902

Patent

active

055499422

ABSTRACT:
A duct for transporting air within an air handling system. The inventive device includes a plurality of panels coupled together to form a hollow duct. The panels are sealed along interior surfaces thereof by coextensive foil webs. The panels can be formed from a single blank and subsequently folded into an operative orientation for use in a heating and air conditioning installation.

REFERENCES:
patent: 2576698 (1951-11-01), Russum
patent: 3031358 (1962-04-01), Rutter et al.
patent: 3078880 (1953-05-01), Stephens
patent: 3092529 (1955-06-01), Pearson
patent: 3141809 (1964-07-01), Di Maio et al.
patent: 4183379 (1980-01-01), Marquette et al.
patent: 4280536 (1991-07-01), Gnant
patent: 5310594 (1994-05-01), Holland et al.

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