Illumination – With static structure – Wall or ceiling
Patent
1983-03-24
1984-05-15
Lechert, Jr., Stephen J.
Illumination
With static structure
Wall or ceiling
362150, 362294, 362218, 362373, 362404, F21S 102
Patent
active
044491662
ABSTRACT:
A combination light and air ventilation fixture for suspended ceilings is provided. A surrounding frame forms the air supply and air exhaust ducts, in addition to supporting the light producing portion of the fixture. The air ducts are substantially identical in construction, each consisting of two planar, stamped formations, joined together, with the air passageway located therebetween. A separate U-shaped, stamped formation separates the different air ducts to complete the frame. These U-shaped members are provided with lower flanges, corresponding to the lower flanges of the air ducts, and thus appear visually continuous with the air ducts. Cast corner members join the planar formations of the air ducts to the U-shaped members, forming the completed frame. Placement of the fixture in the suspended ceiling support grid is assisted by placement clips attached to the frame, which are received by slots located in the ceiling grid. The clips enable the fixtures to be easily arranged in regular geometric patterns.
REFERENCES:
patent: 3101038 (1974-08-01), Archer
patent: 3193001 (1974-09-01), Meckler
patent: 3312160 (1967-04-01), Rackley
patent: 3375773 (1968-04-01), Wotowiec et al.
patent: 3636340 (1972-01-01), Mulvey
patent: 3743826 (1973-07-01), Halfaker
patent: 4060025 (1977-11-01), Pelosi, Jr.
patent: 4161019 (1979-07-01), Mulvey
patent: 4175281 (1979-11-01), Lonseth
patent: 4175360 (1979-11-01), Mulvey
patent: 4382400 (1983-05-01), Stutzman
Ceiling Dynamics, Inc.
Chovanes Eugene
Lechert Jr. Stephen J.
Locker Howard J.
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