Variable volume floor diffuser with attachment means

Details Variable volume floor diffuser with attachment means Variable volume floor diffuser with attachment means

2011-05-31

2011-05-31

McAllister, Steven B (Department: 3749)

Ventilation

Having inlet airway

Including specific air distributor

C454S284000, C454S290000, C454S292000, C454S322000, C454S323000, C454S324000, C454S330000, C454S331000

Reexamination Certificate

active

07950988

ABSTRACT:
A diffuser for positioning in an opening of a passageway having conditioned air, the diffuser including a grate assembly, a pan assembly, and a retention assembly. The grate assembly includes an upper portion and a lower portion. The upper portion contains an aperture, a plurality of slotted sections, and a flange. The lower portion includes downwardly depending sidewalls and a stop. The pan assembly includes a tray with an aperture and a plurality of upwardly depending legs. The retention assembly couples the grate assembly with the pan assembly and contains a first member that is movable from a first position to a second position for selectively engaging the stop.

REFERENCES:
patent: 2891615 (1959-06-01), Farrell
patent: 3391629 (1968-07-01), Snell
patent: 4434710 (1984-03-01), Bolton et al.
patent: 5109756 (1992-05-01), Barboza et al.
patent: 5472380 (1995-12-01), Sarazen et al.
patent: 6083100 (2000-07-01), Hardy et al.
patent: 6478673 (2002-11-01), Haynes
patent: 05332601 (1993-12-01), None

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