Humanized convenient door lock

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9963918
SERIAL NO

14853951

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Importance

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Abstract

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A humanized convenient door lock includes a lock housing, a latch, a security hook, an outside handle operation mechanism, an inside handle operation mechanism, a cylinder driving mechanism, and an inside deadlocking rotary knob driving mechanism. The inside handle operation mechanism drives and controls the latch, the security hook, and the inside deadlocking rotary knob driving mechanism. To open the door, it only needs a one-time operation by pressing down a handle, thereby providing ease and convenience. The design is a humanized one, making it particularly suit for the needs of the disabled and the elderly and for urgent door opening.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
DONGGUAN DAZHAN METAL CO LTDDONGGUAN GUANGDONG

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chang, Tung-Ming Dongguan, CN 4 72

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