Liquid motion lamp

Details Liquid motion lamp Liquid motion lamp

2006-11-21

2006-11-21

Ward, John Anthony (Department: 2875)

Illumination

Light modifier

Fluid medium type

C362S101000, C362S096000, C040S406000, C040S409000

Reexamination Certificate

active

07137720

ABSTRACT:
An improved liquid motion lamp includes a second heat source to reduce warm-up time and a removable base cover to simplify changing a first heat source. The first heat source is preferably a light bulb residing in the base of the lamp, which light bulb provides both heat to cause motion of liquids within the lamp, and light to enhance a viewing effect. The sliding cover is preferably an open ended cylinder which slides upwards to provide access to the light bulb. The liquids comprises a first liquid which is a solid at room temperature and which is preferably paraffin based, and a second liquid which is preferably water. The first liquid may be empirically determined by mixing trial batches of paraffin and chlorinated paraffin to determine the correct ratio for a given lot of paraffins. The first liquid may be prepared, and shipped with the lamp in a solid phase. The second liquid may be added at the lamp's final destination.

REFERENCES:
patent: 3387396 (1968-06-01), Smith
patent: 3570156 (1971-03-01), Walker
patent: 4419283 (1983-12-01), Schneider
patent: 5778576 (1998-07-01), Kaviani
patent: 6604835 (2003-08-01), Zale
patent: 6681508 (2004-01-01), Unger et al.
patent: 6746131 (2004-06-01), Goldstein et al.
patent: 2003/0202340 (2003-10-01), Wu

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