Foamable coupling for lamp assembly and methods for using the coupling
US7198686B2 · kind B2 · utility
1Cited by
41References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2003 |
| Grant date | Apr 3, 2007 |
| Priority date | — |
| Expiry date | May 30, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/218
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A foamable copolymer based coupling is provided for securely affixing a light emitting glass lamp in a metal base to form a lamp assembly. The copolymer is preferably selected from ethylene vinyl acetate, ethylene methyl acrylate, and combinations thereof. The foamable coupling may be placed around one end of the glass lamp or in the lamp base before the lamp and base are matingly engaged. The assembled lamp is then heated to a temperature, which causes the foamable coupling to expand and securely affix the lamp in the base.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.