Electricity: conductors and insulators – Anti-inductive structures – Conductor transposition
Reexamination Certificate
1999-10-20
2001-11-20
Reichard, Dean A. (Department: 2831)
Electricity: conductors and insulators
Anti-inductive structures
Conductor transposition
C174S034000, C174S657000
Reexamination Certificate
active
06320123
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to shielding electronic equipment from electromagnetic waves or pulses and more specifically to a system and method of routing the electromagnetic waves up to a halo and out to the ground.
2. Problems in the Art
Electronic and solid state components are extremely sensitive to changes of magnetic and electric fields caused by both natural and man-made phenomenon. Solar flares, electrical lines, and lightning are some of the many natural and man-made causes of increased electromagnetic wave activity. Telecommunications equipment is particularly susceptible to such phenomena. Currently such telecommunications equipment is protected by using isolated grounds.
These grounding stations have not been able to protect electrical equipment from high intensity electromagnetic waves. As an electromagnetic wave penetrates a surface, it induces an electric current through that surface. It is this electric current that can harm sensitive equipment. It is therefore desirable to have a method and system of shielding electrical equipment from high intensity electromagnetic waves that routes the electric current generated from high intensity electromagnetic waves out to ground.
Others have tried to shield individual electrical components, such as computer equipment, through various means. For example, U.S. Pat. No. 3,982,058 to Hill uses three layers of various materials which attempt to prevent major penetration of electromagnetic waves. Because such materials can be relatively expensive, the use of individual enclosures can be cost prohibitive. Further, nothing is done to route the electric current created by these waves. Thus a shielding device such as this can reach saturation magnetization because of high-flux density magnetic fields, thereby reducing the effectiveness of the shield. It is therefore desirable to provide a low cost means of shielding electrical equipment from high intensity electromagnetic waves.
FEATURES OF THE INVENTION
A general feature of the present invention is the provision of a method and system for shielding electrical components from electromagnetic waves.
A further feature of the present invention is the provision of a method and system for shielding electrical equipment from the current induced by such waves.
Another feature of the present invention is the provision of method and system for shielding electrical equipment from high-intensity electromagnetic waves which is relatively low in cost.
A still further feature of the present invention is the provision of a ground window to which the ground wire of various electrical componentry is attached.
These, as well as other features and advantages of the present invention, will become apparent from the following specification and claims.
SUMMARY OF THE INVENTION
The present invention generally comprises a method and system for shielding electrical components from electromagnetic waves and the effects therefrom. Electrical components are generally housed in a plurality of walls formed so as to form an enclosure common in the art. These walls are lined with an initial layer of lead which is attached to a layer of copper. These layers are electrically connected to a plurality of #4 copper wire sets that run vertically up the walls to a halo. This halo is composed of copper wire and is above the electrical components on the ceiling of the enclosure.
When an electromagnetic wave strikes the surface of the enclosure, the layer of lead absorbs the greater intensity waves and routes any electrical current generated thereby up the plurality of wire sets to the halo. The remaining intensity electromagnetic waves strike the layer of copper and generate an electrical current. This current is also routed up the plurality of wire sets to the halo.
The halo is electrically connected to a first grounding window which is in turn electrically connected to a wire running to a ground. The first grounding window routes the collected current from the halo out of the halo and down the wire to the ground, thereby preventing the current from affecting the electrical components housed in the enclosure.
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Oliva Carmelo
Reichard Dean A.
Zarley McKee Thomte Voorhees & Sease
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