Writing instrument having an ink balance mechanism

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9266380
APP PUB NO 20150063894A1
SERIAL NO

14149804

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Abstract

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A writing instrument is provided with a barrel including a bottom opening; a partition disposed in the barrel to divide the barrel into an upper ink reservoir filled with ink and a lower storage filled with an absorbent material; a writing member partially disposed in the absorbent material and extending out of the bottom opening; and a conveying line disposed through the partition. The conveying line includes a venting channel and an ink conveying channel. Each of the venting channel and the ink conveying channel communicate with both the ink and the absorbent material. A smooth writing can be carried out.

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Patent Owner(s)

Patent OwnerAddress
MICROPOROUS TECHNOLOGY (NINGBO) LIMITEDNINGBO ZHEJIANG 315470
NINGBO WUYUN PEN MANUFACTURING CO LTD315400 MIDDLE GUBEI ROAD SIMEN TOWN YUYAO CITY NINGBO CITY ZHEJIANG PROVINCE NINGBO CITY ZHEJIANG PROVINCE 315400

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Wang, Liping Yuyao, CN 148 523
Wen, Yang Yuyao, CN 44 286

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