IMPROVED MULTIPLE-CORE ELECTRICAL IGNITION SYSTEM CABLE

• Main Authors: OLSON, RICHARD, H, YOCHUM, EDWIN, L
• Format: Patent
• Language: English; French; German
• Published: 30.12.1998
• Edition: 6
• Subjects: BASIC ELECTRIC ELEMENTS; BLASTING; CABLES; COMBUSTION ENGINES; CONDUCTORS; ELECTRICITY; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; IGNITION, OTHER THAN COMPRESSION IGNITION, FORINTERNAL-COMBUSTION ENGINES; INSULATORS; LIGHTING; MECHANICAL ENGINEERING; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES; WEAPONS

A failure-resistant electrical ignition system cable comprises first and second terminal contacts for contacting a source of ignition pulses and contacting the predetermined destination of these pulses, respectively; a plurality of flexible ignition conductors connected between the first and second terminal contacts, each of the ignition conductors being capable of electrically communicating the ignition pulses between the terminal contacts, each of the ignition conductors comprising an electrically-inert center, an elongated conductive wire spirally and interstitially wound around the center for substantially the full length thereof, each of the ignition conductors then being twisted about each other so as to provide repeated electrical contacts of the conductive wire of each whereby electrical continuity between the terminal contacts may be maintained despite the occurrence of one or more electrical discontinuities; the outer exposed surfaces of the twisted ignition conductors being electrically insulated by a flexible insulating medium. The cable may optionally include a concentric reenforcing braid intermediate the ignition conductors and the outer surface of the ignition system cable.