Expandable liquid volume in an LED bulb
US8562185B2 · kind B2 · utility
2Cited by
19References
43Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2012 |
| Grant date | Oct 22, 2013 |
| Priority date | — |
| Expiry date | Sep 28, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49002
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An LED bulb includes a base, a shell connected to the base, one or more LEDs, a thermally conductive liquid, and a flexible diaphragm. The one or more LEDs are disposed within the shell. The thermally conductive liquid is held within the shell. The flexible diaphragm is in fluidic connection to the thermally conductive liquid, and is configured to deflect from a first position to a second position to compensate for expansion of the thermally conductive liquid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.