Locks – Portable – Padlocks
Patent
1994-03-24
1996-02-06
Boucher, Darnell M.
Locks
Portable
Padlocks
70 39, 70233, E05B 6722
Patent
active
054888450
ABSTRACT:
A single insertion locking U-shaped padlock structure is comprised of a pintle rod, with an eccentricity consisting of a radially projecting oval surface section, supported by a concentric tensile spring, a rotation limit notch on a stepped tumbler and a fan-shaped eccentric hole in a rear protective sleeve that limits the degree of rotation of the pintle rod to achieve the functions of single direct insertion locking and automatic unlocking and, furthermore, coil springs are installed onto the two ends of a U-shaped shackle that enables, after turning the key to the unlock position during unlocking, the U-shaped shackle to be immediately disengaged from the pintle and removed, thereby enabling direct forceful insertion, automatic locking and convenient unlocking operation with simplicity and effectiveness; furthermore, the invention herein resists unlocking attempts involving heavy impact or continuous light impact to increase effective protection.
REFERENCES:
patent: 1384570 (1921-07-01), Bottone
patent: 1688208 (1928-10-01), Rosso
patent: 1724025 (1929-08-01), Jacobi
patent: 2375488 (1945-05-01), Olson
patent: 2852926 (1958-09-01), Chervenica
patent: 4949564 (1990-08-01), Barzilai
patent: 5199282 (1993-04-01), Wang
patent: 5406812 (1995-04-01), Jaw
LandOfFree
Single insertion locking U-shaped padlock structure does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Single insertion locking U-shaped padlock structure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Single insertion locking U-shaped padlock structure will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2170248