1979-10-24
1981-05-12
Makay, Albert J.
98 40D, 98 40VM, 98DIG10, F24F 700
Patent
active
042664705
ABSTRACT:
A universal air diffuser comprised of a fiberglass plenum having an open side and means for attaching a duct connector on a closed side opposite the open side. The closed side of the fiberglass plenum is covered with a close-fitting non-porous material which reinforces the fiberglass to allow cutting holes for attachment of air ducts. A plurality of shallow grooves on the exterior of the closed surface provide cutting lines for hole patterns to cut holes for various standard size ducts. The reinforcing material is a fiberglass-reinforced foil which maintains the integrity of the hole cut in the surface and provides a non-porous surface for adhering to duct tape.
REFERENCES:
patent: 2050023 (1936-08-01), Slayter
patent: 2861510 (1958-11-01), Wulle
patent: 2900182 (1959-08-01), Hinks
patent: 3276928 (1966-10-01), Pearson et al.
patent: 4040213 (1977-08-01), Capaul
patent: 4159674 (1979-07-01), Brumlev, Jr.
Farason Harry J.
Fogg Ralph L.
Schroeder Clifford A.
Voorhees Robert E.
C. A. Schroeder Inc.
Cislo Donald M.
Joyce Harold
Makay Albert J.
O'Reilly David
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