1983-03-21
1985-05-14
Joyce, Harold
F24F 13072
Patent
active
045164835
ABSTRACT:
An air-discharge device for incorporation in a ceiling comprises an elongate housing of substantially rectangular cross section, such housing having two longitudinal vertical sides, two vertical ends, and a longitudinal upper horizontal side, the longitudinal lower horizontal side being open and substantially flush with the ceiling, each longitudinal vertical side being formed with an elongate lower edge. An air inlet is provided in the housing. Two longitudinal walls extend obliquely into the housing from the respective lower edges of the vertical sides, the inner edges of these two walls defining a longitudinal air passage slot therebetween. A plurality of air-deflecting L-shaped guide blades extends lengthwise along the housing between such two walls, the guide blades being alternately secured at one end of the vertical portion of the L to the respective two walls, each guide blade having the horizontal portion of its L lying in a plane including the elongate lower edges, the guide blades thereby forming with the respective two walls alternately directed air discharge outlets. As a result, the air discharged through such outlets flows substantially along the ceiling.
REFERENCES:
patent: 3227063 (1966-01-01), Lambert
patent: 3266408 (1966-08-01), Palmquist
patent: 3654471 (1972-04-01), Nilsson
patent: 3757668 (1973-09-01), Dean, Jr.
patent: 3974755 (1976-08-01), Honmann
Joyce Harold
Schneider Rolf E.
U.S. Philips Corporation
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