Mesh-covered core strip for high frequency RFI/EMI radiation shielding

Claim 2

An RFI/EMI shielding strip for electronic cabinets and the like, which comprises (a) a continuous metal strip of clip-like cross section and of great length in relation to its width, (b) said strip being adapted to frictionally engage the edge of a cabinet panel, (c) a continuous core strip of resilient material extending along one side of said metal strip, (d) a flattened, two-layer strip of circular knitted metallic mesh material extending along said core strip and wrapped around and enveloping said core strip, (e) the width of the mesh strip being greater than the circumference of said core strip, and the opposite side edge margins of said two-layer mesh strip being brought together in face-to-face relation in four superposed layers, and (f) means for securing said side edge margins to said continuous metal strip.

Claim 3

An RFI/EMI shielding strip according to claim 1, further characterized by (a) said metal strip having an upper section adapted in the installed position of said strip to overlie a flange of the cabinet panel, (b) said core strip and eveloping mesh strip being supported upon said upper section, (c) the repective edge margins of said mesh strip being brought together in flat overlying relation upon and being secured to an edge portion of said upper section.

Claim 4

An RFI/EMI shielding strip according to claim 2, further characterized by (a) said metal strip having an integral edge flange folded over upon said edge portion, (b) said edge flange serving to clamp and secure the side edge margins of said mesh strip.

Claim 5

An RFI/EMI shielding strip according to claim 3, further characterized by (a) said edge flange and an underlying portion of said edge portion being formed with complementary, lengthwise-extending indentations for crimping marginal portions of said mesh strip.

Claim 6

An RFI/EMI shielding strip according to claim 1, further characterized by (a) said mesh strip comprising a circular knitted mesh of monel wire of about 0.0045 inch diameter, (b) said knitted mesh being flattened to two-layered strip form .[.befire.]. .Iadd.before .Iaddend.being applied about said core strip.

Claim 7

An RFI/EMI shielding strip for electronic cabinets and the like, which comprises (a) a continuous metal strip of clip-like cross section and of great length in relation to its width, (b) said strip being adapted to frictionally engage the edge of a cabinet panel, (c) a continuous core strip of resilient material extending along one side of said metal strip, (d) a flattened, two-layer strip of .Iadd.circular .Iaddend.knitted metallic mesh material extending along said core strip and wrapped around and eveloping said core strip, (e) the width of the mesh strip being greater than the circumference of said core strip, and the opposite side edge margins of said mesh strip being brought together in face-to-face relation, and (f) means for securing said side edge margins to said continuous metal strip, (g) said clip-like strip having upper and lower sections joined along one side to form a closed side and having an open side, (h) said upper section extending beyond said lower section end forming a guide flange for installation, (i) the outer extremity of said lower section diverging from the upper section toward said open side and forming a narrow throat section at its convergent side, (j) a punched-through grounding prong region in said lower section located slightly beyond said throat section toward said closed side.

Claim 8

An RFI/EMI shielding strip for electronic cabinets and the like, which comprises (a) a continuous metal strip of clip-like cross section and of great length in relation to its width, (b) said strip being adapted to frictionally engage the edge of a cabinet panel, (c) a continuous core strip of resilient material extending along one side of said metal strip, (d) a flattened, two-layer strip of .Iadd.circular .Iaddend.knitted metallic mesh material extending along said core strip and wrapped around and eveloping said core strip, (e) the width of the mesh strip being greater than the circumference of said core strip, and the opposite side edge margins of said mesh strip being brought together in face-to-face relation, and (f) means for securing said side edge margins to said continuous metal strip, (g) said clip-like strip having upper and lower sections joined along one side to form a closed side and having an open side, (h) said upper section extending beyond said lower section end forming a guide flange for installation, (i) the outer extremity of said lower section diverging from the upper section toward said open side and forming a narrow throat section at its convergent side, (j) a punched-through grounding prong region in said lower section located slightly beyond said throat section toward said closed side.

Claim 9

An RFI/EMI shielding strip according to claim 6, further characterized by (a) a folded over flange portion of said upper section engaging and gripping the edge margins of said mesh strip for enclosing and mounting said core strip. .Iadd.

Claim 10

An RFI/EMI shielding strip for electronic cabinets and the like, which comprises (a) a continuous metal strip of great length in relation to its width, (b) said strip being adapted to be mounted on the edge of a cabinet panel, (c) a continuous core strip of resilient material extending along one side of said metal strip, (d) a flattened, two-layer strip of circular knitted metallic mesh material extending along said core strip and wrapped around and enveloping said core strip, (e) the width of the mesh strip being greater than the circumference of said core strip, and the opposite side edge margins of said two-layer mesh strip being brought together in face-to-face relation in four superposed layers, and (f) means for securing said side edge margins to said continuous metal strip. .Iaddend. .Iadd.9. An RFI/EMI shielding strip according to claim 8, further characterized by (a) said metal strip having an upper section adapted in the installed position of said strip to overlie a flange of the cabinet panel, (b) said core strip and eveloping mesh strip being supported upon said support section, (c) the respective edge margins of said mesh strip being brought together in flat overlying relation upon and being secured to an edge portion of

Claim 11

said support section. .Iaddend. .Iadd.10. An RFI/EMI shielding strip according to claim 9, further characterized by (a) said metal strip having an integral edge flange folded over upon said edge margins, (b) said edge flange serving to clamp and secure the side edge margins of said mesh strip. .Iaddend. .Iadd.11. An RFI/EMI shielding strip according to claim 10, further characterized by (a) said edge flange and an underlying portion of said edge portion being formed with complementary, lengthwise-extending indentations for crimping

Claim 12

marginal portions of said mesh strip. .Iaddend. .Iadd.12. An RFI/EMI shielding strip according to claim 1, further characterized by (a) said mesh strip comprising a circular knitted mesh of monel wire of about 0.0045 inch diameter, (b) said knitted mesh being flattened to two-layered strip form before being applied about said core strip. .Iaddend.