Buckles – buttons – clasps – etc.
Patent
1975-06-04
1977-02-22
Camby, John J.
Buckles, buttons, clasps, etc.
240 9A, F24F 1302
Patent
active
040086542
ABSTRACT:
A multipurpose, recessed luminaire capable of utilization in air handling applications is provided having a simplified air blade construction. The particular construction utilized in the air blade design is responsible for the ability of the luminaire to exhibit a multipurpose capacity. The luminaire or light fixture includes a body defining a lamp housing. The body has a peripheral lip about it, the lip defining a cavity along at least two opposed sides of the body. The cavity is the primary air path when the luminaire is used in air transfer applications. The air blade is mounted along the peripheral lip and is adjustable between positions which block air flow, provide horizontal air distribution, or provide vertical air distribution, horizontal and vertical distribution referring to the general direction of air flow travel after exiting the cavity. The air blade inlcudes a first wall, a second wall initially generally perpendicular to the first wall, and a third wall meeting the first wall at a predetermined angle. In the preferred embodiment, both the first and third walls have relief means formed in them so that these walls may be folded against one another and against the second wall to give the luminaire its multipurpose capabilities. The third wall is designed to function as a positive blade stop in the horizontal air distribution position of the air blade.
REFERENCES:
patent: 2985090 (1961-05-01), Quin
patent: 3126811 (1964-03-01), Kennedy
patent: 3181450 (1965-05-01), Kruger
patent: 3185069 (1965-05-01), Straub et al.
patent: 3295432 (1967-01-01), Palmquist
patent: 3308744 (1967-03-01), Schach
patent: 3419714 (1968-12-01), Slauer
patent: 3838268 (1974-09-01), Fabbri
Stahlhut Leo G.
Trantina Walter J.
Camby John J.
Emerson Electric Co.
Yuen Henry C.
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