Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
142 words
An electromagnetic shield, comprising: a flexible sheet comprising an electrically insulating material; a conductive material substantially coextensive with the flexible sheet and defining a shielding barrier, the conductive material being spaced from at least one surface of the flexible sheet over an area on at least one side of the flexible sheet, thereby presenting an insulating area, and the conductive material being exposed on a surface of the flexible sheet over another area of the flexible sheet, thereby presenting a contact area for coupling electrically to the conductive material; and, wherein the flexible sheet substantially forms an enclosure for a circuit element, the enclosure having an opening, and wherein the insulating area and the contact area are arranged selectively, for protecting portions of the circuit element from contact with the conductive material, and for coupling the conductive material to a conductive body.
Claim 2
Dependent Claim
152 words
In combination, a shield and a shielded circuit element, wherein: the shield has a flexible sheet comprising an electrically insulating material and a conductive material substantially coextensive with the flexible sheet and defining a shielding barrier, the conductive material being spaced from at least one surface of the flexible sheet over an area on at least one side of the flexible sheet, thereby presenting an insulating area, and the conductive material being exposed on a surface of the flexible sheet over another area of the flexible sheet, thereby presenting a contact area for coupling electrically to the conductive material; and, wherein the flexible sheet substantially forms an enclosure for the circuit element, the enclosure having an opening, and wherein the insulating area and the contact area are arranged selectively, for protecting portions of the circuit element from contact with the conductive material, and for coupling the conductive material to a conductive body.
Claim 3
Dependent Claim
40 words
The invention of claim 1 or claim 2, wherein the insulating area comprises an insulating lip of predetermined width extending around a periphery of the opening for protecting said portions of the circuit element from contact with the conductive material.
Claim 4
Dependent Claim
30 words
The invention of claims 1, 2 or 3, wherein the flexible sheet comprises a flange associated with the opening, a part of the contact area being disposed on the flange.
Claim 5
Dependent Claim
16 words
The invention of claim 4, wherein the flange is resiliently compressible, thereby forming a conductive gasket.
Claim 6
Dependent Claim
21 words
The invention of claim 5, wherein the gasket is formed at least partly by folding the flexible sheet adjacent the opening.
Claim 7
Dependent Claim
30 words
The invention of claim 6, further comprising a resilient core in the gasket, and wherein the flexible sheet is folded around the resilient core for resiliently bearing the contact area.
Claim 8
Dependent Claim
38 words
The invention of any one of claims 1 to 7, wherein the flexible sheet is formed into a hollow envelope by at least one seam, and further comprising means for electrically connecting the conductive material across the seam.
Claim 9
Dependent Claim
44 words
The invention of claim 8, wherein the conductive material is exposed on a conductive side of the envelope opposite from the insulating face, and wherein the seam comprises a fold at which the conductive sides of adjacent portions of the flexible sheet are overlapped.
Claim 10
Dependent Claim
28 words
The invention of any one of claims 1 to 9, wherein the opening is adapted to engage around an electrical connector having conductors for traversing the shielding barrier.
Claim 11
Dependent Claim
35 words
The invention of claim 10, wherein the electrical connector comprises an external conductive shield and the contact area is arranged to bear against said external conductive shield, for continuing the shielding barrier along the connector.