Ventilation – Having inlet airway – Including specific air distributor
Patent
1997-07-23
1999-08-17
Joyce, Harold
Ventilation
Having inlet airway
Including specific air distributor
454324, F24F 1306
Patent
active
059385251
ABSTRACT:
An air diffuser for under floor air and electrical distribution systems, which can be rapidly converted to a cable grommet assembly, is provided with a diffuser grille having generally helical slots that produce a swirling air flow pattern with low impulse, low turbulence and high induction. The helical air slots allow the grille to be rotated or spun off a mold, which allows the grilles to be molded more rapidly and economically. The grille sets on a housing which contains a flow regulator. Both the housing and the flow regulator have side walls with air slots. The regulator is connected to the grille and can be rotated by rotating the grille to regulate that air flow through the diffuser. The air diffusers and cable grommet assemblies are supported by common mounting systems that can be installed through the floors of overlying an air distribution and electrical cable plenum. The mounting system includes a trim ring installed in a hole in the floor, which supports the other components of the air diffuser or grommet assembly, and a retaining ring which is dropped through the hole before the trim ring is installed and then ratcheted onto the trim ring.
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Krantz, Underfloor Air Supply System, Technical Manual (Jan. 14, 1991).
Floor Diffusers, Type FB in aluminum and plastic, Gebr. Trox GmbH (1991).
Birdsong John R.
Porter Kennon B.
Joyce Harold
Tompkins Industries, Inc
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