| US 7,478,914 B2 | ||
| Liquid motion lamp with temperature control system | ||
| Louis J. Finkle, 3300 E. 59th St., Long Beach, Calif. 90805 (US) | ||
| Filed on Nov. 28, 2006, as Appl. No. 11/605,779. | ||
| Claims priority of provisional application 60/814267, filed on Jun. 16, 2006. | ||
| Prior Publication US 2007/0291472 A1, Dec. 20, 2007 | ||
| Int. Cl. F21V 33/00 (2006.01); F27D 21/02 (2006.01); F27D 19/00 (2006.01) | ||
| U.S. Cl. 362—101 [362/154; 362/811; 40/406; 392/316; 392/318; 432/32; 432/49] | 17 Claims |
| 1. A liquid motion lamp comprising:
a container;
a first liquid suitable for residing in the container;
a second liquid suitable for residing in the container and adapted to cooperate with the first liquid, wherein the first liquid
has a lesser density than the second liquid at a higher temperature, and the first liquid has a greater density than the second
liquid at a lower temperature;
a base portion, at least a portion of which is below the container;
a first heat source residing within the base portion;
a temperature sensor measuring the temperature of at least one of the first liquid and the second liquid; and
a control circuit responsive to the temperature sensor and controlling power to the first heat source.
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