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 6994446 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 07, 2006

Filed:

Sep. 26, 2003
Applicant:

Ming Huang, Taipei, TW;

Inventor:

Ming Huang, Taipei, TW;

Assignee:

Other;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B43K 29/10 (2006.01);
U.S. Cl.
CPC ...
Abstract

A light emitting rotary double refill pen comprises an upper tube and a lower tube. The lower tube is installed with a refill switching unit for switching two refills. A light emitting set is installed at and secured to a lower end of an inner wall of the positioning tube. The light emitting set is installed with a light emitting body and a battery set. A spring is installed between the light emitting set and the stop cap. A top of the refill switching unit of the lower tube is fixed with an electric disk and is conductive to the light emitting set. A top of the electric disk is installed with a conductive spring and a conductive plate. When the lead is in contact with the conductive plate on the electric disk. The light emitting body lights up, otherwise, the light emitting body extinguishes.


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