U-shaped lock

Details U-shaped lock U-shaped lock

1996-10-01

1999-11-23

Gall, Lloyd A.

Locks

Portable

Padlocks

70 39, 70 52, 70358, E05B 8724

Patent

active

059879408

ABSTRACT:
A U-shaped lock includes a housing, a shackle holder and a cap closing the housing. A U-shaped shackle has two ends inserted in two shackle holes in the cap and the shackle holder. A lock unit with a pin tumbler mechanism is fixed in a lock hole of the shackle holder, being rotated for two stages of angles by a key to move a pull rod unit fitted in a horizontal lengthwise hole on the lock hole in the shackle holder outward or inward to lock or unlock the two ends of the shackle.

REFERENCES:
patent: 257086 (1882-04-01), Shallus
patent: 1451860 (1923-04-01), Best
patent: 1548239 (1925-08-01), Allain
patent: 1755847 (1930-04-01), Stevens
patent: 1779716 (1930-10-01), Shaw
patent: 1881809 (1932-10-01), Maxwell
patent: 2199165 (1940-04-01), Smith
patent: 4464915 (1984-08-01), Moshe et al.
patent: 5140836 (1992-08-01), Hogan et al.
patent: 5148690 (1992-09-01), Wang
patent: 5230231 (1993-07-01), Liou
patent: 5475997 (1995-12-01), Chung

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