# US 12,002,598 B2 · Quad-shield coaxial cable > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,002,598 B2 - Document ID: US12002598B2 - Status: Granted - Kind: B2 - Application number: 17/888,710 - Filed: 2022-08-16 - Published: 2023-04-13 - Granted: 2024-06-04 - Earliest claimed: 2016-07-19 - Assignees: Ppc Broadband, Inc. - Applicants: PPC Broadband, Inc. - Inventors: Michael Lawrence - Web page: https://patentgrep.com/patent/US12002598B2 ## CPC - H01B 11/1895: {Particular features or applications} - H01B 7/17: Protection against damage caused by external factors, e.g. sheaths or armouring - H01B 11/1813: {Co-axial cables with at least one braided conductor} - H02G 1/1202: {by cutting and withdrawing insulation} - H02G 1/14: for joining or terminating cables - H01B: CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES (selection for magnetic properties H01F1/00; waveguides H01P {; printed circuits H05K}) - H02G: INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES ## Abstract A quad-shield coaxial cable includes an insulator portion configured to encircle an inner conductor portion, an inner conductive foil portion configured to encircle the insulator portion, an inner braided shield portion configured to encircle the inner conductive foil layer portion, an outer braided shield portion configured to encircle the inner braided shield portion, an outer conductive foil portion configured to encircle the outer braided shield portion, and a jacket portion configured to encircle the outer conductive foil portion. ## Claims ### Claim 1 A coaxial cable comprising: a braided shield portion configured to encircle a conductive foil layer portion; an outermost braided shield portion configured to encircle the braided shield portion; and a conductive foil portion configured to encircle the outermost braided shield portion. ### Claim 2 (depends on 1) The cable of claim 1, wherein the conductive foil portion comprises a conductive foil layer configured to coaxially surround an insulator portion. ### Claim 3 (depends on 2) The cable of claim 2, wherein the insulator portion is configured to surround a conductor portion. ### Claim 4 (depends on 3) The cable of claim 3, wherein the conductor portion comprises an elongated center conductor that extends along a longitudinal axis. ### Claim 5 (depends on 1) The cable of claim 1, wherein the braided shield portion comprises a layer of braided shield configured to coaxially surround the conductive foil portion. ### Claim 6 (depends on 1) The cable of claim 1, wherein the outermost braided shield portion comprises a layer of braided shield configured to coaxially surround the braided shield portion. ### Claim 7 (depends on 1) The cable of claim 1, wherein the outermost conductive foil portion comprises a conductive foil layer configured to coaxially surround the outermost braided shield portion. ### Claim 8 (depends on 1) The cable of claim 1, further comprising a jacket portion configured to encircle the outermost conductive foil portion. ### Claim 9 A coaxial cable configured to provide improved shielding performance, comprising: a braided shield portion configured to encircle a conductive foil layer portion; a second braided shield portion configured to encircle the braided shield portion; and a conductive foil portion configured to encircle the second braided shield portion and having a surface configured to be adjacent to a jacket portion. ### Claim 10 (depends on 9) The coaxial cable of claim 9, wherein the surface of the conductive foil portion is configured to avoid abrasion by the second braided shield portion. ### Claim 11 (depends on 9) The coaxial cable of claim 9, further comprising a second conductive foil portion, wherein the second conductive foil portion comprises a conductive foil layer configured to coaxially surround an insulator portion. ### Claim 12 (depends on 11) The coaxial cable of claim 11, wherein the insulator portion is configured to surround a conductor portion. ### Claim 13 (depends on 12) The coaxial cable of claim 12, wherein the conductor portion comprises an elongated center conductor that extends along a longitudinal axis. ### Claim 14 (depends on 11) The coaxial cable of claim 11, wherein the braided shield portion comprises a layer of braided shield configured to coaxially surround the conductive foil layer. ### Claim 15 (depends on 9) The coaxial cable of claim 9, wherein the second braided shield portion comprises a layer of braided shield configured to coaxially surround the braided shield portion. ### Claim 16 (depends on 9) The coaxial cable of claim 9, wherein the conductive foil portion comprises a conductive foil layer configured to coaxially surround the second braided shield portion. ### Claim 17 (depends on 9) The coaxial cable of claim 9, further comprising a jacket portion configured to encircle the conductive foil portion. ### Claim 18 A coaxial cable configured to provide improved shielding performance, comprising: a braided shield portion configured to encircle a conductive foil layer portion; an outermost braided shield portion configured to encircle the braided shield portion; a conductive foil portion configured to encircle the outermost braided shield portion; and wherein the conductive foil portion includes a surface configured to face away from the outermost braided shield portion thereby avoiding abrasion of the surface by the outermost braided shield portion. ### Claim 19 (depends on 18) The coaxial cable of claim 18, wherein avoiding abrasion of the surface improves shielding performance. ### Claim 20 (depends on 18) The coaxial cable of claim 18, wherein the conductive foil portion includes a second side surface facing away from the outermost braided shield portion such that the second side surface is configured to maintain shielding effectiveness after typical installation abuse as well as normal wear and tear over time. ### Claim 21 (depends on 18) The coaxial cable of claim 18, further comprising a conductive foil portion, wherein the inner conductive foil portion comprises a conductive foil layer configured to coaxially surround an insulator portion. ### Claim 22 (depends on 21) The coaxial cable of claim 21, wherein the braided shield portion comprises a layer of braided shield configured to coaxially surround the conductive foil portion. ### Claim 23 (depends on 21) The coaxial cable of claim 21, wherein the insulator portion is configured to surround a conductor portion. ### Claim 24 (depends on 23) The coaxial cable of claim 23, wherein the conductor portion comprises an elongated center conductor that extends along a longitudinal axis. ### Claim 25 (depends on 23) The coaxial cable of claim 23, further comprising a jacket portion configured to encircle the conductive foil portion. ### Claim 26 (depends on 18) The coaxial cable of claim 18, wherein the outermost braided shield portion comprises a layer of braided shield configured to coaxially surround the braided shield portion. ### Claim 27 (depends on 18) The coaxial cable of claim 18, wherein the outer conductive foil portion comprises an outer conductive foil layer configured to coaxially surround the outermost braided shield portion.