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    IMPROVED PUSHBUTTON LOCK
    1.
    发明专利
    IMPROVED PUSHBUTTON LOCK 未知

    公开(公告)号：CA2345690C

    公开(公告)日：2008-03-25

    申请号：CA2345690

    申请日：1999-09-30

    Applicant: SLC TECHNOLOGIES INC

    Inventor： LARSON WAYNE F ,  BURLEIGH CHARLES E

    IPC: E05B37/16 ,  E05B37/00

    Abstract: Various enhancements are provided to a pushbutton lock to enhance its security. One is the provision of button tips that are mounted on the ends of the button assemblies and spring-loaded to protrude from the face of the lock, regardless of whether the underlying button is "in" or "out". By this arrangement, a bystander cannot readily see the button combination by the pattern of depressed buttons. This arrangement also reduces tactile feedback between the underlying button assembly and the externally available button tips, increasing resistance to pick attacks. A further enhancement is the provision of button bars between adjacent pairs of button tips. Whenever any of the button tips is manually depressed, the corresponding button bar is pressed into engagement with, and prevents movement of, a member that must be moved in order to unlock the lock. This arrangement further increases lock security by preventing an attacker from experimentally pressing buttons and judging the tactile effect thereon in attempted unlockings of the lock.

    IMPROVED PUSHBUTTON LOCK
    3.
    发明专利
    IMPROVED PUSHBUTTON LOCK 未知

    公开(公告)号：CA2345690A1

    公开(公告)日：2000-04-06

    申请号：CA2345690

    申请日：1999-09-30

    Applicant: SLC TECHNOLOGIES INC

    Inventor： BURLEIGH CHARLES E ,  LARSON WAYNE F

    IPC: E05B37/00 ,  E05B37/16

    Abstract: Various enhancements are provided to a pushbutton lock to enhance its security. One is the provision of button tips that are mounted on the ends o f the button assemblies and spring-loaded to protrude from the face of the loc k, regardless of whether the underlying button is "in" or "out". By this arrangement, a bystander cannot readily see the button combination by the pattern of depressed buttons. This arrangement also reduces tactile feedback between the underlying button assembly and the externally available button tips, increasing resistance to pick attacks. A further enhancement is the provision of button bars between adjacent pairs of button tips. Whenever any of the button tips is manually depressed, the corresponding button bar is pressed into engagement with, and prevents movement of, a member that must b e moved in order to unlock the lock. This arrangement further increases lock security by preventing an attacker from experimentally pressing buttons and judging the tactile effect thereon in attempted unlockings of the lock.

    5.
    发明专利
    未知

    公开(公告)号：DE69841077D1

    公开(公告)日：2009-10-01

    申请号：DE69841077

    申请日：1998-06-11

    Applicant: SLC TECHNOLOGIES INC

    Inventor： LARSON WAYNE F ,  KICKNER CHRISTOPHER RAYMOND

    IPC: E05B49/00 ,  E05B47/00 ,  E05B67/06 ,  E05B67/22 ,  G07C1/32 ,  G07C9/00

    Abstract: The latching components of the padlock are driven by a motor between positions for latching and releasing the padlock shackle. Power for the motor is provided by a source carried in an electronic key. An encoder element with associated optical elements provides position information to the control circuit carried inside of the padlock. The control circuit correlates the position information with the signal directing power to the motor so that the motor is precisely controlled for moving the latching elements between release and latch.

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