Fluid reaction surfaces (i.e. – impellers) – With illumination means
Patent
1993-09-27
1995-08-01
Look, Edward K.
Fluid reaction surfaces (i.e., impellers)
With illumination means
362 96, 310232, F04D 2900
Patent
active
054375401
ABSTRACT:
A new and improved illuminated blade, ceiling fan apparatus includes a circular planar electrical contact assembly which includes a first circular planar conductor and a second circular planar conductor spaced from the first planar conductor such that the first planar conductor and the second planar conductor are not in electrical contact with each other. A brush contact assembly includes brushes for providing sliding electrical contact with the first planar conductor and the second planar conductor when there is relative rotation between the circular planar electrical contact assembly and the brush contact assembly. Respective sources of illumination, e. g. neon lamps, supported by the fan blade assemblies are in circuit with the circular planar electrical contact assembly and the brush contact assembly, such that the sources of illumination are energized when the brush contact assembly is in electrical contact with the first circular planar conductor and the second circular planar conductor. The fan blade assemblies may include blade members which include hollow interiors and are made from transparent materials. The sources of illumination are housed within the hollow interiors of the transparent blade members. A partially opaque and partially transparent design is supported by a transparent blade member, such that, when a source of illumination is energized, the partially opaque and partially transparent design is provided with backlighting. Either the first circular planar conductor or the second circular planar conductor includes a discontinuous circular conductive path. The discontinuous conductive path provides intermittent illumination.
REFERENCES:
patent: 3701498 (1972-10-01), Ferrara
patent: 5028206 (1991-07-01), Kendregan et al.
patent: 5072341 (1991-12-01), Huang
patent: 5082422 (1992-01-01), Wang
Blocker Blane T.
Blocker Eva B.
Larson James A.
Look Edward K.
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