Ventilation – Having inlet airway – Including specific air distributor
Patent
1992-11-09
1994-01-25
Joyce, Harold
Ventilation
Having inlet airway
Including specific air distributor
454292, 248343, F24F 1306
Patent
active
052811875
ABSTRACT:
A unitary vent and duct assembly for installation within a framed section of a suspended ceiling structure comprises a cowling having a substantially closed top end and a substantially closed bottom end. The bottom end of the cowling is covered with a foraminous grill that allows passage of air into or out of the assembly. The assembly is sized to fit within a framed section of a suspended ceiling structure and has a plurality of spring biased barb bearing clips arrayed about its periphery. A semi-rigid flexible and lengthwise expandable duct is coupled to the top portion of the cowling and communicates with the interior thereof. In use, the vent and duct assembly is pressed into place within a framed section of a suspended ceiling structure, whereupon the peripheral clips engage and fasten to the struts of the ceiling structure to hold the assembly firmly but releasibly in place. The flexible duct can then be pulled away from the cowling and toward a main supply or return duct to which it is to be coupled. The flexible duct, being semi-rigid, maintains its shape and length as it is stretched away from the cowling to eliminate kinks and sags. Further, since the assembly is securely held in place with its peripheral clips, the pulling of the flexible duct does not dislodge the assembly.
REFERENCES:
patent: 2342965 (1944-02-01), Palmer
patent: 2662743 (1953-12-01), Frenger
patent: 2734446 (1956-02-01), O'Day
patent: 3327606 (1967-06-01), Little et al.
patent: 4088293 (1978-05-01), Delmore
patent: 4122762 (1978-10-01), Williams
patent: 4159674 (1979-07-01), Brumleu, Jr.
patent: 4760981 (1988-08-01), Hodges
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