LED lamp having enhanced waterproofing

Details LED lamp having enhanced waterproofing LED lamp having enhanced waterproofing

2011-08-30

2011-08-30

Bruce, David V (Department: 2875)

Illumination

Light source and modifier

With sealing means or artificial atmosphere

C362S249020, C362S294000

Reexamination Certificate

active

08007131

ABSTRACT:
An LED lamp includes a heat sink, a plurality of LED modules attached to the heat sink, and an envelope disposed on the base of the heat sink. The heat sink includes a base and a plurality of fins extending from the base. The envelope defines a receiving groove therein surrounding the LED modules. The receiving groove is stepped to have an upper portion and a lower portion recessed downwardly from a bottom of the upper portion. The LED lamp further includes an annular waterproof gasket. The waterproof gasket includes a main body received in the upper portion of the receiving groove and an engaging portion protruding downwardly from a bottom thereof and engagingly received in the lower portion of the receiving groove. The lower portion and the upper portion of the receiving groove are both rectangular in cross-section.

REFERENCES:
patent: 2008/0253127 (2008-10-01), Willwohl et al.
patent: 2009/0180281 (2009-07-01), Ahland et al.
patent: 2009/0296416 (2009-12-01), Luo et al.

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