Resettable combination coded U-shackle lock

Details Resettable combination coded U-shackle lock Resettable combination coded U-shackle lock

1997-07-18

1998-08-04

Gall, Lloyd A.

Locks

Portable

Padlocks

70312, E05B 3702

Patent

active

057877360

ABSTRACT:
A resettable combination coded U-shackle lock assembly includes a cross bar lock body and a U-shaped shackle with its legs removably locked to the lock body. The lock body is disposed with a resettable combination coded locking module, a locking plate, a triggering button, and a locking plate spring. The locking plate, through its locking holes, engages the locking pins of the shackle by the biasing force exerted by the locking plate spring and disengages when the triggering button disposed on the other end of the locking plate is depressed to overcome the biasing force and causing the locking plate to move axially to release engagement with the locking pins. When the combination code is coded in locking combination, the axial movement of the locking plate is blocked by the stopping plate of the locking module and the lock is in "locked" status. When the combination code is coded in an opening combination, the stopping plate of the locking module, biased by the stopping plate spring, returns to a normal position whereby ceases blocking action against the movement of the locking plate and the lock is in "unlocked" status. The shackle can then be removed from the lock body by depressing the triggering button.

REFERENCES:
patent: 2830447 (1958-04-01), Miller
patent: 3983724 (1976-10-01), Foote
patent: 4048821 (1977-09-01), Bako et al.
patent: 4123923 (1978-11-01), Bako
patent: 4389863 (1983-06-01), Bako
patent: 4621509 (1986-11-01), Mizuno
patent: 4881387 (1989-11-01), Kortenbrede
patent: 4987753 (1991-01-01), Kuo
patent: 5092142 (1992-03-01), Zane et al.
patent: 5119282 (1992-06-01), Wang
patent: 5142888 (1992-09-01), Ling
patent: 5406811 (1995-04-01), Nakai

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