Locks – Portable – Padlocks
Patent
1990-08-20
1991-04-23
Smith, Gary L.
Locks
Portable
Padlocks
70 38A, 70 51, E05B 6706
Patent
active
050090879
ABSTRACT:
A lock device in the form of a padlock has a shackle and a retaining cable connected to the lock case. The shackle has a heel-piece permanently retained slidably and rotatably in the case of the padlock and is urged upwardly in the unlocked position by a spring. The retainer cable has a yoke at one end which is received in a slot in the side of the lock case and captured within the case by the lower portion of the shackle which slides up and down through the yoke as the shackle is moved up and down between the locked and unlocked positions. The free end of the retaining cable may be secured to a convenient structure in close proximity to where the lock will be used to maintain the lock at the use location whereby the lock may be secured at the use location either in its locked or unlocked condition. After the padlock has been unlocked by a key, the shackle can be rotated and can be installed on or removed from the article to be secured by the lock, but the retaining cable yoke is still locked within the lock case by the lower portion of the shackle heel-piece. When the key is reinserted and turned, the shackle is turned 180 degrees and pushed to the complete down position to align a flat portion of the heel-piece with a slot in the yoke and the yoke can be pulled out of the padlock case. A color-coding system may also be provided to identify corresponding keys, locks, and retainer cables.
REFERENCES:
patent: 834027 (1906-10-01), Slaymaker
patent: 1386778 (1921-08-01), Gray
patent: 1609817 (1926-12-01), Hanton
patent: 1845354 (1932-02-01), Soref
patent: 3605458 (1971-09-01), Best
patent: 3754419 (1973-08-01), Taylor
patent: 4226100 (1980-10-01), Hampton et al.
patent: 4419873 (1983-12-01), Sopko
Dino Suzanne L.
Roddy Kenneth A.
Smith Gary L.
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