Apparatus and method for grounding EMI/RFI from data/signal cable

• US 20040100784A1
• Filed: 11/27/2002
• Published: 05/27/2004
• Est. Priority Date: 11/27/2002
• Status: Abandoned Application

• Current Assignee: Computer Network Technology Corp. (Broadcom, Inc.)
• Original Assignee: Computer Network Technology Corp. (Broadcom, Inc.)
• Inventors: Kent, Stanton, Willers, Arthur G.
• Application Number:
  US10/305,365
• Publication Number:
  US 20040100784A1
• Time in Patent Office: Days
• US Class Current: 361/816
• CPC Class Codes: H05K 9/0018 with provisions to reduce aperture leakages in walls, e.g. terminals, connectors, cables

Abstract

Apparatus and method for shielding interference, comprising a clamping bracket filled with a filling member, designed to accommodate cables of varying sizes, allow for easy substitution of one cable for another and provide a means to integrate the faraday cage between multiple chassis/enclosures.

Claims

1. An apparatus capable of reducing interference caused by an opening within an enclosure, comprising:

a first opening in said enclosure;

a first filling member, located within said opening, wherein said filling member shields said interference.

2. The apparatus of claim 1, further comprising a clamping bracket, positioned adjacent to said first opening, wherein said clamping bracket has a second opening positioned adjacent to said first opening.

3. The apparatus of claim 1, wherein a cable is positioned through an opening of said first filling member.

4. The apparatus of claim 3, wherein said first filling member is constructed from a non-radiating material.

5. The apparatus of claim 4, wherein said material comprises silicone and nickel coated graphite.

6. The apparatus of claim 5, wherein said first filling member does not contain an opening.

7. The apparatus of claim 3, wherein said clamping bracket can be opened and said first filling member can be replaced by a second filling member without significant disruption to the operation of said apparatus.

8. The apparatus of claim 7, wherein said second filling member has an opening having a different diameter from the opening in said first filling member.

9. The apparatus of claim 7, wherein said second filling member has no opening.

10. A method of limiting interference caused by an opening in an enclosure, comprising the steps of:

placing a shielding material at said opening;

encasing said cable with said shielding material at said opening; and

grounding said shielding material to said enclosure.

11. The method of claim 10, wherein said shielding material is comprised of silicon and nickel-coated graphite.

12. The method of claim 10, further comprising providing a bracket to secure said shielding material at said opening.

13. The method of claim 12, further comprising providing a front panel which is secured to said enclosure at said opening, said bracket is attached to said front panel.

14. The method of claim 12, wherein said bracket secures a plurality of said shielding material.

15. An system for limiting interference into and out of an enclosure, wherein said interference leaks through an opening of said enclosure, comprising:

means for shielding said interference at said opening; and

means for grounding shielding material to said enclosure.

16. The system as in claim 15, further comprising means for allowing an object to pass through said means for shielding.

17. The system as in claim 15, further comprising means for holding a plurality of said means for shielding.

18. The system as in claim 17, further comprising means for securing said means for holding to said enclosure.

19. An apparatus for reducing the introduction of interference into an enclosure caused by an opening in the enclosure opening, comprising:

shielding material located at said opening; and

a securing bracket that holds said shielding material at said enclosure opening.

20. The apparatus as in claim 19, further comprising a face plate with an opening.

21. The apparatus as in claim 19, wherein said bracket holds a plurality of said shielding material.

22. The apparatus as in claim 19, wherein said shielding material encases a cable passing through it.

23. The apparatus as in claim 19, wherein said shielding material does not contain a shielding opening.

24. The apparatus as in claim 22, wherein said shielding opening is equal to a diameter of the cable.

25. An apparatus comprising:

a cabinet having electrical components therein;

a first opening located on a first outer portion of said cabinet;

a second opening located on a second outer portion of said cabinet;

a first filling member, which shields interference, within said first opening and a second filling member, which shields interference, within said second opening.

26. The apparatus of claim 25, further comprising a first clamping bracket, positioned adjacent to said first opening, and a second clamping bracket, positioned adjacent to said second opening, wherein said first clamping bracket couples said first filling member to said cabinet at said first opening, and said second clamping bracket couples said second filling member to said cabinet at said second opening.

27. The apparatus of claim 25, further comprising a first cable, wherein said first cable enters said cabinet through said first opening, encased by said first filling member, and said cable exits said cabinet through said second opening, encased by said second filling member.

28. The apparatus of claim 26, wherein said first filling member can be replaced by a third filling member without significant disruption to the operation of said apparatus.