EMI shielding gasket

Claim 2

An EMI shielding gasket for use at an opening in an enclosure housing electronic components that radiate high frequency electromagnetic emissions during operation comprising: a pair of generally parallel laterally spaced apart U-shaped channel members made of springy electrically conductive material, each of the pair of U-shaped channel members including a longitudinal bottom wall and two side walls extending from the bottom wall in a direction generally opposite and away from the other U-shaped member to terminate at a longitudinal channel entrance opening facing away from the other U-shaped member, the bottom and side walls being spaced and dimensioned to received in mounting relationship an edge portion of the enclosure defining an edge of the opening, a corresponding side wall each of the U-shaped members comprising spaced apart wall segments, the free side of each of such wall segments at the longitudinal channel entrance having turned out corners each forming a resilient electrical contact when the gasket is in EMI shielding use; and a pair of parallel spaced apart springy electrically conductive connecting portions oriented transversely of the U-shaped channel members and joined thereto at their end regions, such connecting portions being resiliently deformable to allow the U-shaped channel members to be moved more closely together to facilitate mounting the U-shaped channel members on opposite edges of the enclosure opening.

Claim 3

The EMI shielding gasket of claim 1 wherein such gasket is made of a single piece of metal.

Claim 4

The EMI shielding gasket of claim 1 wherein the corners of the wall segments are turned outwardly from 20 to 30 degrees.

Claim 5

The EMI shielding gasket of claim 1 wherein the connecting portions are planar and such planar connecting portions have a mounting opening.

Claim 6

The EMI shielding gasket of claim 4 wherein the planar connecting portions have tabs for placement of the gasket at an enclosure opening.

Claim 7

An enclosure for housing electronic components that radiate high frequency electromagnetic emissions during their operation comprising: a wall having an expansion opening; An EMI shielding gasket mounted at the opening of the wall, the shielding gasket having a pair of generally parallel laterally spaced apart U-shaped channel members made of springy electrically conductive material, each of the pair of U-shaped channel members including a longitudinal bottom wall and two side walls extending from the bottom wall in a direction generally opposite and away from the other U-shaped member to terminate at a longitudinal channel entrance opening facing away from the other U-shaped member, the bottom and side walls being spaced and dimensioned to receive in mounting relationship an edge portion of the enclosure defining an edge of the opening, a corresponding side wall of each of the pair of U-shaped members comprising spaced apart wall segments, the free side opening having corners turned outwardly of the channel, such turned out corners each forming a resilient electrical contact when the gasket is in EMI shielding use; and a pair of parallel spaced apart springy electrically conductive connecting portions oriented transversely of the U-shaped channel member and joined thereto at their end regions, such connecting portions being resiliently deformable to allow the U-shaped channel members to be moved more closely together to facilitate mounting the U-shaped channel members o opposite edges of the enclosure opening.

Claim 8

An enclosure for housing electronic components that radiate high frequency electromagnetic emissions during their operation comprising: a wall having an expansion opening; An EMI shielding gasket mounted at the opening of the wall, the shielding gasket having a pair of generally parallel laterally spaced apart U-shaped channel members made of springy electrically conductive material, each of the pair of U-shaped channel members including a longitudinal bottom wall and two side walls extending from the bottom wall in a direction generally opposite and away from the other U-shaped member to terminate at a longitudinal channel entrance opening facing away from the other U-shaped member, the bottom and side walls being spaced and dimensioned to receive in mounting relationship an edge portion of the enclosure defining an edge of the opening, a corresponding side wall of each of the pair of U-shaped members comprising spaced apart wall segments, the free side opening having corners turned outwardly of the channel, such turned out corners each forming a resilient electrical contact when the gasket is in EMI shielding use; and a pair of parallel spaced apart springy electrically conductive connecting portions oriented transversely of the U-shaped channel member and joined thereto at their end regions, such connecting portions being resiliently deformable to allow the U-shaped channel members to be moved more closely together to facilitate mounting the U-shaped channel members o opposite edges of the enclosure opening.