Patents Represented by Attorney David I. Klien

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  • Main body structure of combination lock
    Patent number: 5636539
    Abstract: 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.
    Type: Grant
    Filed: September 27, 1995
    Date of Patent: June 10, 1997
    Inventor: Cheng-Tao Tsai