Door opening and closing assisting device and method

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20060038412A1
SERIAL NO

11205989

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An embodiment of the apparatus relates to a door opening and closing assisting device comprising: a spring force to urge the door in a closed direction when the door is half-opened or less and supplies no closing force when the door is more than half-opened. The assisting device is housed either in the door or the main body. The method relates to assisting in opening and closing a door comprising: elastically deforming a spring in response to the door being opened to a half-opened position; disconnecting the spring force if the door is more than half-opened and reconnecting the spring force to the door when the door is half-opened or less.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
SANKYO SEIKI MFG CO LTDSUWA-GUN NAGANO-KEN 393-8511

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hayashi, Katsuhiko Nagano, JP 191 2315
Muramatsu, Kenji Nagano, JP 45 371
Takasawa, Kiyotsugu Nagano, JP 16 122

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