US Patent No: 5,636,539

Number of patents in Portfolio can not be more than 2000

Main body structure of combination lock

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Importance

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Abstract

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A combination lock is provided wherein force is maintained by convex blocks of a thimble member to displace a setting push ring and allow setting of a new combination. The convex blocks of the thimble are engaged with arcuate edges of a push ring by rotation of the thimble. Subsequent to setting of a new combination, the thimble is rotated back to its original position.

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First Claim

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Patent Owner(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Tsai, Cheng-Tao Tainan, TW 11 114

Cited Art Landscape

Patent Info (Count) # Cites Year
 
LAURIA, ROBERT E. (1)
5,235,831 Combination lock having resetting feature 18 1992
 
Other [Check patent profile for assignment information] (2)
4,302,955 Bicycle lock 18 1980
5,027,623 Combination lock having sensing means for dialing aid and anti-sensing means for security purpose 13 1990

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
ACCO BRANDS USA LLC (7)
7,614,266 Security apparatus with reset mechanism 14 2007
7,963,132 Locking device with passage 8 2010
7,997,106 Security apparatus including locking head and attachment device 4 2010
8,001,812 Security apparatus including locking head 7 2010
8,042,366 Security apparatus including attachment device 5 2011
D651889 Security apparatus 7 2011
D660682 Security apparatus 1 2011
 
ACCO BRANDS CORPORATION (2)
D661975 Attachment device for security apparatus 2 2011
D670553 Attachment device for security apparatus 2 2012
 
JAEYOU CO., LTD. (2)
6,799,445 Dual-use lock whose unlocking numeral combination can be traced after having been forgotten 26 2003
6,799,446 Combination lock changeable in combination 12 2003
 
ABUS August Bremicker Soehne KG (1)
8,596,103 Permutation lock 0 2011
 
Ging Hwa Long Hardware Industry Co., Ltd. (1)
8,297,087 Idiot-proof lock device that prevents a user from changing the code freely and unintentionally 1 2011
 
Other [Check patent profile for assignment information] (6)
5,934,120 Lock with a resettable combination 27 1997
5,899,099 Combination lock 12 1998
6,209,368 Combination lock 10 1999
6,845,643 Combination lock 16 2003
7,779,658 Locking device and unauthorized unlocking prevention method 0 2007
8,756,960 Bicycle handlebar-stored cable lock 0 2012