Elongated-member-driving apparatus – With means to move or guide member into driving position – Adaptable to dispense different sizes or quantities of members
Reexamination Certificate
2001-05-04
2002-02-12
Smith, Scott A. (Department: 3721)
Elongated-member-driving apparatus
With means to move or guide member into driving position
Adaptable to dispense different sizes or quantities of members
C227S120000
Reexamination Certificate
active
06345754
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to staplers and, more specifically, to a staple magazine for stapler, which fits staples
ails of different designs and sizes.
A variety of staplers have been disclosed for fastening papers, etc. with
-staples, ridged staples, U-nails, T-nails, I-nails. However, conventional staplers are designed for use with a particular size of staples
ails. Every user may have to prepare staplers of different sizes and different models for use with different staples
ails.
FIGS. 1
,
1
A and
2
show a staple magazine for stapler according to the prior art. As illustrated, this structure of staple magazine comprises an elongated outer casing
10
of substantially U-shaped cross section, an elongated inner casing
12
of substantially U-shaped cross section fixedly mounted inside the outer casing
10
and defining with the outer casing
10
two longitudinally extended guide grooves
14
of equal width adapted to receive the legs of staples
25
, and a top cover plate
15
covered on the top of the front part of the outer casing
10
. The topmost edge
13
of the inner casing
12
is disposed below the elevation of the topmost edge
11
of the outer casing
10
. The top cover plate
15
has a recessed middle part
16
. This design of staple magazine is suitable for use with
-staples of a particular size only.
SUMMARY OF THE INVENTION
The present invention has been accomplished to provide a staple magazine for stapler, which eliminates the aforesaid problem. It is one object of the present invention to provide a staple magazine for stapler, which fits different staples and nails of different sizes. It is another object of the present invention to provide a staple magazine for stapler, which is easy and inexpensive to manufacture. According to one aspect of the present invention, the upright sidewalls of the inner casing and upright sidewalls of the outer casing have the respective topmost edge disposed at the same elevation. According to another aspect of the present invention, the two guide grooves defined between the upright sidewalls of the inner casing and the upright sidewalls of the outer casing have different widths, for enabling the staple magazine to fit staples
ails of different sizes. According to still another aspect of the present invention, the top cover plate has a ridged top wall fitting ridged staples. According to still another aspect of the present invention, one upright sidewall of the inner casing has a longitudinally extended protruded portion of smoothly arched cross section protruding toward the other upright sidewall of the inner casing and serving as guide rail means to work with one of the guide grooves for carrying U-nails.
The foregoing object and summary provide only a brief introduction to the present invention. To fully appreciate these and other objects of the present invention as well as the invention itself, all of which will become apparent to those skilled in the art, the following detailed description of the invention and the claims should be read in conjunction with the accompanying drawings. Throughout the specification and drawings identical reference numerals refer to identical or similar parts.
Many other advantages and features of the present invention will become manifest to those versed in the art upon making reference to the detailed description and the accompanying sheets of drawings in which a preferred structural embodiment incorporating the principles of the present invention is shown by way of illustrative example.
REFERENCES:
patent: 3958738 (1976-05-01), Tremblay
patent: 4556161 (1985-12-01), Oide
patent: 4732309 (1988-03-01), Judge
patent: 5695108 (1997-12-01), Lee
patent: 5794832 (1998-08-01), Chen
patent: 5967397 (1999-10-01), Fealey
A & J
Smith Scott A.
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