The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 8534872 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 17, 2013

Filed:

Oct. 19, 2009
Applicants:

Tay-jian Liu, Taipei Hsien, TW;

NA Zhang, Shenzhen, CN;

Jian-bing Qian, Shenzhen, CN;

Inventors:

Tay-Jian Liu, Taipei Hsien, TW;

Na Zhang, Shenzhen, CN;

Jian-Bing Qian, Shenzhen, CN;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V 29/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An LED illumination device includes a heat dissipation part, an optical part and an electric part. The optical part includes an LED module attached on the heat dissipation part and an envelope mounted on the heat dissipation part and covering the LED module. The electric part includes a casing and a lamp cap. The casing is cup-shaped. The lamp cap includes a sleeve electrode and a spring electrode attached at a bottom of the sleeve electrode. The sleeve electrode and the spring electrode electrically power the LED module. One end of the casing along an axis thereof is mounted on bottom ends of the heat dissipation part and the optical part. The sleeve electrode is disposed around the other end of the casing. The spring electrode is resiliently deformable along an axis of the sleeve electrode.


Find Patent Forward Citations

Liu, Tay-Jian. (2013). Led illumination device (U.S. Patent No. 8534872). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8534872

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