Cutlery – Sheathed – Sliding blade
Reexamination Certificate
2000-08-03
2002-07-09
Goodman, Charles (Department: 3724)
Cutlery
Sheathed
Sliding blade
C030S040100, C030S335000
Reexamination Certificate
active
06415514
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to an artistic knife with replaceable blade magazine, in which several blades are loaded in a blade magazine which is installed on the handle of the knife. By means of the replaceable blade magazine, blade can be more easily replaced with less time.
FIGS. 9 and 10
show a conventional artistic knife having a blade reservoir
51
on one side of the handle
5
of the artistic knife. After a blade is worn off, a new blade can be immediately supplied and used instead of the worn blade.
The blade
6
is formed with two notches
61
and two locating sections
511
are disposed in the blade reservoir
51
corresponding to the notches
61
for restricting the blade
6
. A blade seat
7
is disposed on inner side of the handle corresponding to the blade reservoir
51
. The upper edge of the blade seat
7
is punched with a resilient engaging plate
71
slightly protruding from the blade seat to insert into the notches
61
of the blade so as to fix the innermost blade
6
a
in the blade reservoir
51
. A push button
72
disposed on the blade seat
7
is used to forward move the blade to the front end of the handle. In order to detach the blade, a press key
52
is disposed on the handle
5
for pushing the resilient engaging plate
71
to separate from the notches
61
of the blade.
Such design has some shortcomings. For example, the blades
6
must be loaded in the blade reservoir
51
of one side of the handle. After the blades
6
are exhausted, it is necessary to load the blades one by one after detaching a stop board
54
and a resilient push section
53
. Such procedure is troublesome.
In addition, the resilient engaging plate
71
of the blade seat
7
slightly protrudes from the inner edge of the blade seat
7
as shown in FIG.
11
. In order to effectively engage the engaging plate
71
with the blade, the protruding distance t is set to be about the thickness of the blade. However, an error in manufacturing may make it impossible to insert the blade seat with the blade or make the blade seat insert with two blades at the same time to clog the front end of the handle.
SUMMARY OF THE INVENTION
It is therefore a primary object of the present invention to provide an artistic knife with replaceable blade magazine, in which the blade magazine is independently installed on the handle of the knife for a user to quickly replace the blade. In addition, when armed, the artistic knife will not be clogged due to poor accuracy of the blade seat.
The present invention can be best understood through the following description and accompanying drawings wherein:
REFERENCES:
patent: 2172072 (1939-09-01), Rothschild
patent: 3577637 (1971-05-01), Braginetz
patent: 3708881 (1973-01-01), Bennett
patent: 4277888 (1981-07-01), Szabo
patent: 5099578 (1992-03-01), Jan
patent: 5404645 (1995-04-01), Janser
patent: 5435062 (1995-07-01), Huang
patent: 5644843 (1997-07-01), Young
patent: 5906050 (1999-05-01), Gilbert
patent: 5960545 (1999-10-01), Shepherd et al.
patent: 5966817 (1999-10-01), Lee
patent: 6101721 (2000-08-01), Medhurst
patent: 6148522 (2000-11-01), Dobandi
patent: 2213416 (1989-08-01), None
Goodman Charles
Rosenberg , Klein & Lee
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