# US 2014/0150710 A1 · System for Preventing Undue Bending of Cables > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0150710 A1 - Document ID: US20140150710A1 - Status: Published application - Kind: A1 - Application number: 13/692,061 - Filed: 2012-12-03 - Published: 2014-06-05 - Earliest claimed: 2012-12-03 - Assignees: International Business Machines Corporation - Applicants: International Business Machines Corporation - Inventors: Christopher P. Jones; Jonathan Lenchner; Nathan E. Masters; James A. Oravec; Rodrigo A. Rey - Web page: https://patentgrep.com/patent/US20140150710A1 ## CPC - G02B 6/4429: {Means specially adapted for strengthening or protecting the cables} - G01N 31/22: using chemical indicators (G01N31/02 takes precedence) - G02B 6/475: {Mechanical aspects of installing cables in ducts or the like for buildings} - G02B 6/562: {locatable, e.g. using magnetic means} - H01B 7/32: with arrangements for indicating defects, e.g. breaks or leaks - H01B 7/328: {comprising violation sensing means} - H01B 7/36: with distinguishing or length marks - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q) - 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}) ## Abstract A cable system is disclosed including a central cable; an inner membrane having a higher minimum bend radius than the central cable and surrounding the cable, thereby forming an inner chamber around the central cable, the inner chamber containing a gas or at least one chemical; and an outer membrane surrounding the inner membrane and forming an outer chamber around the inner chamber, the outer chamber comprising a gas or at least one chemical. When the minimum bend radius of the inner membrane is exceeded, the inner membrane fractures or breaks, and the gas or at least one chemical from the inner chamber enters the outer chamber to create a chemiluminescence reaction, color, or smell. ## Claims ### Claim 1 A cable system, comprising: a central cable; an inner membrane having a higher minimum bend radius than the central cable and surrounding the central cable, thereby creating an inner chamber, the inner chamber containing a gas or at least one chemical; and an outer membrane surrounding the inner membrane and creating an outer chamber, the outer chamber containing a gas or at least one chemical, wherein when the minimum bend radius of the inner membrane is exceeded, the inner membrane fractures or breaks, and the gas or at least one chemical in the inner chamber enters the outer chamber to create a chemiluminescence reaction, a color, or a smell. ### Claim 2 (depends on 1) A cable system according to claim 1, further comprising a sensor to detect said chemiluminescence reaction or color. ### Claim 3 A cable system, comprising: a central cable; an inner membrane having a higher minimum bend radius than the central cable and surrounding the central cable, thereby creating an inner chamber, the inner chamber containing a gas or at least one chemical and ; and a clear, transparent, or translucent outer membrane surrounding the inner membrane, thereby creating an outer chamber, the outer chamber containing at least one chemical and a non-excited fluorescent dye, wherein when the inner membrane fractures or breaks, the at least one chemical in the inner chamber is mixed with the at least one chemical and the non-excited fluorescent dye in the outer chamber to create a chemiluminescence reaction. ### Claim 4 (depends on 3) A cable system according to claim 3, wherein the inner membrane comprises a fractureable material. ### Claim 5 (depends on 4) A cable system according to claim 4, wherein the fractureable material comprises glass, plastic, or ceramic. ### Claim 6 (depends on 3) A cable system according to claim 3, wherein the at least one chemical in the inner chamber comprises hydrogen peroxide. ### Claim 7 (depends on 3) A cable system according to claim 3, wherein the outer membrane comprises a non-fractureable material. ### Claim 8 (depends on 7) A cable system according to claim 7, wherein the outer membrane comprises a plastic, glass, or polymer material. ### Claim 9 (depends on 7) A cable system according to claim 7, wherein the outer membrane comprises glass fiber. ### Claim 10 (depends on 3) A cable system according to claim 3, wherein the at least one chemical in the outer chamber comprises diphenyl oxideate and a fluorescent dye. ### Claim 11 (depends on 3) A cable system according to claim 3, further comprising at least one pair of separating walls that isolate at least one section of the inner chamber and at least one section of the outer chamber surrounding the central cable. ### Claim 12 (depends on 11) A cable system according to claim 11, wherein the at least one pair of separating walls comprise a double-walled section between which the inner and outer chambers are free of any reactive gases or chemicals. ### Claim 13 (depends on 11) A cable system according to claim 11, wherein the at least one section comprises a plurality of sections. ### Claim 14 (depends on 11) A cable system according to claim 11, further comprising at least one marking on an exterior of the outer membrane to indicate a location of the at least one pair of separating walls. ### Claim 15 (depends on 3) A cable system according to claim 3, further comprising an optical or spectrophotometric sensor to detect said chemiluminescence reaction. ### Claim 16 (depends on 3) A cable system according to claim 3, wherein the central cable is not a fiber optic cable. ### Claim 17 A cable system, comprising: a central cable; an inner membrane having a higher minimum bend radius than the central cable and surrounding the central cable, thereby creating an inner chamber, the inner chamber containing a harmless, odiferous gas; and a perforated outer membrane, wherein when the inner membrane factures or breaks, the gas exits the inner chamber and seeps out through the perforated outer membrane into the atmosphere, thereby creating an observable smell. ### Claim 18 (depends on 17) A cable system according to claim 17, wherein the inner membrane comprises a fractureable material. ### Claim 19 (depends on 18) A cable system according to claim 18, wherein the fractureable material comprises glass, plastic, or ceramic. ### Claim 20 (depends on 17) A cable system according to claim 17, wherein the gas comprises methyl mercaptan or ethyl mercaptan. ### Claim 21 (depends on 17) A cable system according to claim 17, wherein the gas comprises ammonium sulfide. ### Claim 22 (depends on 17) A cable system according to claim 17, wherein the central cable is not a fiber optic cable. ### Claim 23 A cable system, comprising: a central cable; and a membrane having a higher minimum bend radius than the central cable and surrounding the central cable, thereby creating a chamber, the chamber containing a harmless, odiferous gas, wherein when the membrane factures or breaks, the odiferous gas exits the chamber and seeps into the atmosphere, thereby creating an observable smell.