Locks – Operating mechanism – Key
Reexamination Certificate
1999-09-01
2001-05-15
Barrett, Suzanne Dino (Department: 3627)
Locks
Operating mechanism
Key
C070S224000, C070S451000
Reexamination Certificate
active
06230528
ABSTRACT:
FIELD OF THE INVENTION
This invention relates to an auxiliary lock and more particulars to a lock with an adjustable size to fit into door lock hole of different sizes.
BACKGROUND OF THE INVENTION
All regular doors have a lock hole predrilled thereon to mount with a lock therein for securing purpose, those lock holes are generally in two different sizes, one in 1½ inches and the other in 2⅛ inches. Though the lock also has tow different sizes, in many times, user found their lock is different in size to the door lock hole and have to run back and forth to get the right one which is very inconvenient.
In solving this problem, two patented arts, U.S. Pat. No. 5,335,525 and 5,540,070 are introduced into the market, U.S. Pat. No. 5,335,525 discloses a cylinder
22
of an adapter
16
is inserted into a groove
44
of a guard collar
18
, and cylinder
24
into an opening
36
of the guard collar
18
, whereas U.S. Pat. No. 5,540,070 connects an adapter
16
with a guard collar
12
and both are to solve the problem, however, these two are not the only way to solve the problem.
SUMMARY OF THE INVENTION
It is the primary object of the present invention to provide an adjustable device for an auxiliary lock which will fit to different sizes of door lock hole;
It is another object of the present invention to provide the adjustable device for an auxiliary lock which is easy in installation.
REFERENCES:
patent: 3514983 (1970-06-01), Krook et al.
patent: 3930390 (1976-01-01), Keller
patent: 3934437 (1976-01-01), Crepinsek
patent: 4573334 (1986-03-01), Crepinsek
patent: 5335525 (1994-08-01), Solovieff
patent: 5540070 (1996-07-01), Adelmeyer
patent: 5666833 (1997-09-01), Gao et al.
patent: 5881590 (1999-03-01), Small
patent: 5906125 (1999-05-01), Shen
patent: 5983683 (1999-11-01), Shen
patent: 6058746 (2000-05-01), Mirshafiee et al.
Don Lan-Kun
Kuo Ching-Chuan
Barrett Suzanne Dino
Rosenberg , Klein & Lee
Tong Lung Metal Industry Co.
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