Ring binder mechanism having blocking device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7654764
APP PUB NO 20080286035A1
SERIAL NO

11749290

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A ring binder includes a housing, a driving mechanism moveable relative to the housing, and rings for holding the loose-leaf pages. Each ring has a first ring member and a second ring member moveable relative to each other between a closed position and an opened position. A ring actuator is positionable relative to the housing and operatively connected to the driving mechanism for moving the ring members between their closed and opened positions. A blocking device blocks the ring members in their closed position against movement to their opened position. The blocking device is positionable relative to the housing between a blocking position wherein the ring members are inhibited by the blocking device against movement from their opened position, and an unblocking position wherein the ring members are selectively moveable from their closed position to their opened position by positioning of the actuator. The blocking device is operable independent of the actuator.

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First Claim

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Family

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Patent Owner(s)

Patent OwnerAddress
WORLD WIDE STATIONERY MFG CO LTD19/F KOON WAH MIRRORS FACTORY 3RD INDUSTRIAL BUILDING 5-9 KA HING RD KWAI CHUNG NEW TERRITORY

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
To, Chun On Hong Kong, CN 4 34

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