Fountain pen with leak proof piston converter

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6409405
SERIAL NO

09493921

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A piston converter for a fountain pen that permits a user to selectively engage the drive mechanism to the converter is disclosed. The converter has a hollow body fluidly connected to a nib of the pen at one end and a plunger assembly slidably disposed therein. The plunger assembly is engaged to a hollow drive rod. An engagement rod with a first end and an engagement end extends into the drive rod. The drive rod has an internal cavity configured to engage the engagement end of the engagement rod. The engagement end of the engagement rod can be selectively moved into or out of the engagement cavity, thereby permitting selective engagement of the drive mechanism for the piston converter.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
TRANSOM CROSS US LLC10990 WILSHIRE BOULEVARD SUITE 440 LOS ANGELES CA 90024

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Eddington, Ryan S Dallas City, IL 6 34

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