SHIELDING STRIPS

• US 20060180347A1
• Filed: 07/05/2005
• Published: 08/17/2006
• Est. Priority Date: 02/11/2005
• Status: Active Grant

• Current Assignee: Laird Technologies Incorporated (DuPont de Nemours, Inc.)
• Original Assignee: Laird Technologies Incorporated (DuPont de Nemours, Inc.)
• Inventors: Van Haaster, Phil
• Granted Patent: US 7,112,740 B2
• Time in Patent Office: Days
• US Class Current: 174/350
• CPC Class Codes: H05K 9/0016 having a spring contact
• CPC Class Codes: Y10S 277/92 Seal including electromagnetic shielding feature

Abstract

A shielding strip according to one aspect of the invention includes a generally longitudinally extending region and at least one generally transversely extending slot along the generally longitudinally extending region. The slot has at least one enlarged portion at about at least one predetermined area of high stress concentration.

Claims

1. A shielding strip including a generally longitudinally extending region, generally longitudinally extending lateral edge regions disposed under the generally longitudinal extending region, and an array of generally transversely extending slots along the generally longitudinally extending region, at least some of said slots having a terminus with a larger cross section than said slot such that the terminuses with the larger cross section are at alternating ends of the slots.

2. The shielding strip of claim 1, wherein at least one of said terminuses with the larger cross section has a radius of curvature greater than the slot width.

3. The shielding strip of claim 1, wherein the terminuses with the larger cross section alternatingly extend from the generally longitudinally extending region towards opposite sides of the shielding strip.

4. The shielding strip of claim 1, wherein at least one of said terminuses with the larger cross section is substantially teardrop shaped or substantially bulbous.

6. The shielding strip of claim 1, wherein at least one of said slots includes a terminus that is not larger in cross section than said slot and that extends at least partially within at least one of the lateral edge regions.

9. The shielding strip of claim 1, wherein the terminuses with the larger cross section are configured to distribute high stress areas to low stress areas.

10. The shielding strip of claim 1, wherein at least of said slots includes only one terminus having a larger cross section than said slot.

11. The shielding strip of claim 1, wherein at least one of said slots includes more than one terminus having a larger cross section than said slot.

12. The shielding strip of claim 1, wherein the shielding strip includes at least one slot with a substantially uniform cross section.

13. The shielding strip of claim 1, wherein the slots define finger elements therebetween, said finger elements configured for flexing generally outwardly and moving relatively independently from one another.

14. An electronic device including the shielding strip of claim 1.

5. (canceled)

7. A shielding strip including a generally longitudinally extending region and an array of generally transversely extending slots along the generally longitudinally extending region, at least some of said slots having a terminus with a larger cross section than said slot such that the terminuses with the larger cross section are at alternating ends of the slots, wherein the generally longitudinally extending region has a generally arcuate transverse profile.

8. A shielding strip including a generally longitudinally extending region and an array of generally transversely extending slots along the generally longitudinally extending region, at least some of said slots having a terminus with a larger cross section than said slot such that the terminuses with the larger cross section are at alternating ends of the slots, wherein the shielding strip includes a generally triangular shaped transverse profile.

15. A shielding strip including a generally longitudinally extending region, generally longitudinally extending lateral edge regions disposed under the generally longitudinal extending region, and at least one generally transversely extending slot along the generally longitudinally extending region, the slot having at least one enlarged portion with a larger cross section than said slot at about at least one predetermined area of high stress concentration.

16. The shielding strip of claim 15, wherein the at least one enlarged portion is at an end portion of the at least one slot.

17. The shielding strip of claim 15, wherein the at least one slot includes an array of generally transversely extending slots each having at least one enlarged portion at a predetermined area of high stress concentration.

18. The shielding strip of claim 17, wherein the enlarged portions are at alternating ends of the slots.

19. The shielding strip of claim 17, wherein at least one of said slots includes only one enlarged portion.

21. The shielding strip of claim 15, wherein the shielding strip includes at least one slot with a substantially uniform cross section.

23. The shielding strip of claim 15, wherein the at least one slot includes an end portion that extends at least partially within at least one of the lateral edge regions.

24. The shielding strip of claim 15, wherein the at least one enlarged portion has a radius of curvature greater than the slot width.

25. The shielding strip of claim 15, wherein the at least one enlarged portion is substantially teardrop shaped or substantially bulbous.

26. The shielding strip of claim 15, wherein the generally longitudinally extending region has a generally arcuate transverse profile.

28. The shielding strip of claim 15, wherein the at least one enlarged portion is configured to distribute stress associated with the predetermined area of high stress concentration to a predetermined area of low stress concentration

29. An electronic device including the shielding strip of claim 15.

20. A shielding strip including a generally longitudinally extending region and at least one generally transversely extending slot along the generally longitudinally extending region, the slot having at least one enlarged portion with a larger cross section than said slot at about at least one predetermined area of high stress concentration, wherein the at least one slot includes an array of generally transversely extending slots each having at least one enlarged portion at a predetermined area of high stress concentration, wherein at least one of said slots includes more than one enlarged portion.

22. (canceled)

27. A shielding strip including a generally longitudinally extending region and at least one generally transversely extending slot along the generally longitudinally extending region, the slot having at least one enlarged portion with a larger cross section than said slot at about at least one predetermined area of high stress concentration, wherein the shielding strip includes a generally triangular shaped transverse profile.

30-35. -35. (canceled)