Pen self-illuminating when being used

Details Pen self-illuminating when being used Pen self-illuminating when being used

1996-10-29

1998-04-07

Sember, Thomas M.

Illumination

With implement or hand held holder therefor

Pen or pencil

362202, 401195, B43K 2910

Patent

active

057355924

ABSTRACT:
A pen self-illuminating when being used is disclosed. The pen includes a barrel with an ink reservoir therein. The ink reservoir has a pair of opposed ears extending from a middle portion thereof and a first spring mounted on the pair of opposed ears. A clip is disposed on the barrel and a switch member is disposed on the clip. The switch member comprises a cover, a mercury battery, a conducting strip, a spacer and a lamp. The cover has an electropad and a terminal thereon. The electropad is connected with one electrode of the mercury battery. The lamp is connected between the electropad and the terminal. The spacer is disposed between the mercury battery and the conducting strip. The conducting strip defines a central opening therein, an elastic trip extending from a periphery defining the opening and a contact strip extending upwardly from a periphery thereof. When the pen is being used, the ink reservoir moves upwardly to propel the elastic strip of the conducting strip upwardly to contact with the electrodes of the mercury battery. Thereby, the lamp will be turned on.

REFERENCES:
patent: 5251112 (1993-10-01), Chen
patent: 5470164 (1995-11-01), Chen
patent: 5544967 (1996-08-01), Yao

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