Applicator having cap which pressurizes and seals inner space

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5462379
SERIAL NO

08250019

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An inexpensive applicator in which the air within the inner barrel of a cap enters the fluid tank of the applicator to increase the internal pressure thereof in the process where the cap is engaged with the neck of the applicator, so that the fluid tank need not be pressed between the fingers for application of the fluid to be applied, the cap having in the inner barrel thereof a cylindrical valve member made of a highly flexible material and provided with a diaphragm or with a diaphragm having a ball-like portion formed thereon, and the application member being designed to be retracted and spaced from the caulked front edge of the tip when the application member is abutted against the diaphragm or the ball-like portion of the valve member in the process where the cap is engaged with the body of the applicator, whereas the elastically deformed diaphragm or the ball-like portion of the valve member is designed to close the front end opening of the tip when the cap is fully engaged with the neck.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
SAILOR PEN CO LTD1-15-4 UENO TAITO-KU TOKYO

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Masumoto, Yasuhiro Tokyo, JP 2 7
Shimada, Isao Tokyo, JP 24 311

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