Electricity: conductors and insulators – Anti-inductive structures – Conductor transposition
Reexamination Certificate
2001-08-17
2002-12-03
Reichard, Dean A. (Department: 2831)
Electricity: conductors and insulators
Anti-inductive structures
Conductor transposition
C174S034000, C174S034000, C361S816000, C361S818000, C277S920000
Reexamination Certificate
active
06489555
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to an elastic system for preventing electromagnetic interference to a computer central processing. Two lateral sides of the contact surface and the welding surface are extended with a vertical upper stopper and a vertical lower stopper; upper portions of the upper stopper and the lower stopper are alternatively arranged.
BACKGROUND OF THE INVENTION
Referring to
FIG. 1
, a schematic view for the elastic system for preventing electromagnetic interference to a computer central processing unit in the prior art is illustrated. In the present invention, each elastic conductive piece
1
a
is installed with a piece-like contact surface
11
a.
The outer side of the contact surface
11
a
has a sheet portion
12
a
extended therefrom. A first bending angle portion R
1
a
is formed therebetween. The free end of the sheet portion
12
a
extends downwards to form a piece-like welding surface
13
a
and a second bending angle portion R
2
a
is formed therebetween. An enhanced portion
16
a
is formed between the lower edge of the second bending angle portion R
2
a
and the welding surface
13
a.
A selective tilt surface
17
a
is formed between the lower end of the enhanced portion
16
a
and the welding surface
13
a.
Two sides of the welding surface
13
a
are bent upwards to be formed with vertical lateral plates
14
a.
Thereby, as the elastic conductive piece
1
a
is pressed, the stress of the second bending angle portion R
2
a,
welding surface
13
a,
and tin glue (not shown) will disperse so as to prevent the combining portion from breaking.
Since two sides of the elastic conductive piece are opened, as it is assembled to a computer, it is easily that the contact surface
11
a
of the elastic conductive piece
1
a
will hook the outer object so that the elastic conductive piece
1
a
deform as illustrated in FIG.
2
. Therefore, other unexpected object, such as cotton pieces, will enter computer mainframe board so to remain therein.
The inner surface of the second bending angle portion R
2
has a configuration with respect to the inner surface of the first bending angle portion R
1
. A hole
19
is formed on the welding surface
13
. Since the welding surface
13
is combined to the computer mainframe board
3
through a tin glue
4
. Therefore, the computer mainframe board
3
has a preferred sticky force. Two lateral sides of the contact surface
11
and the welding surface
13
are extended with a vertical upper stopper
15
and a vertical lower stopper
18
. The upper portions of the upper stopper
15
and, the lower stopper
18
are alternatively arranged. Therefore, each elastic conductive piece has a closed structure. No outer object will be hooked or fall thereinto.
SUMMARY OF THE INVENTION
Accordingly, the primary object of the present invention is to provide an elastic system for preventing electromagnetic interference to a computer central processing unit, wherein two lateral sides of the contact surface and the welding surface are extended with a vertical upper stopper and a vertical lower stopper; upper portions of the upper stopper and the lower stopper are alternatively arranged.
Another object of the present invention is to provide an elastic system for preventing electromagnetic interference to a computer central processing unit, wherein each elastic conductive piece has a closed structure. No outer object will be hooked or fall thereinto.
A further object of the present invention is to provide an elastic system for preventing electromagnetic interference to a computer central processing unit, wherein a hole is formed on the welding surface. Since the welding surface is combined to the computer mainframe board through a tin glue. Therefore, the computer mainframe board has a preferred sticky force.
The various objects and advantages of the present invention will be more readily understood from the following detailed description when read in conjunction with the appended drawing.
REFERENCES:
patent: 4754101 (1988-06-01), Stickney et al.
patent: 5043528 (1991-08-01), Mohr
patent: 5313016 (1994-05-01), Brusati et al.
patent: 5600092 (1997-02-01), Patscheck et al.
patent: 5672844 (1997-09-01), Persson et al.
patent: 5934916 (1999-08-01), Latal et al.
patent: 6359215 (2002-03-01), Horng
Reichard Dean A.
Rosenberg , Klein & Lee
Walkenhorst W. David
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