Coaxial cable with helical insulating spacer
First Claim
1. IN A COAXIAL CABLE, THE COMBINATION OF AN ELECTRICALLY CONDUCTIVE BAR INNER CONDUCTOR OF CIRCULAR CROSS-SECTION, AN ELECTRICALLY INSULATING SPACER OF SUBSTANTIALLY RECTANGULAR CROSS-SECTION SPIRALLING AROUND THE BARE INNER CONDUCTOR WITH THE LONGER DIMENSION OF SAID CROSS-SECTION EXTENDING SUBSTANTIALLY RADIALLY OF THE INNER CONDUCTOR, THE SPIRAL SPACER FORMING A HELIX HAVING ITS TURNS SPACED ALONG SAID INNER CONDUCTOR WITH THE INNER EDGE OF THE TURNS ENGAGING THE BARE INNER CONDUCTOR AROUND THE PERIPHERY THEREOF TO HOLD SAID INNER CONDUCTOR AGAINST RADIAL DISPLACEMENT WITHIN THE TURNS, AND A SOLID-WALLED TUBULAR ELECTRICALLY CONDUCTIVE OUTER CONDUCTOR SURROUNDING THE BARE INNER CONDUCTOR IN SPACED RELATION THERETO AND HAVING AN OUTWARDLY PROTRUDING CORRUGATION SPIRALLING AROUND SAID INNER CONDUCTOR IN SPACED TURNS, THE OUTER CONDUCTOR ALSO HAVING A VALLEY PORTION SPIRALLING AROUND SAID INNER CONDUCTOR IN SPACED RELATION THERETO AND IN SPACED TURNS WHICH SEPARATE SAID CORRUGATION TURNS AND WHICH ARE LOCATED BETWEEN SAID TURNS OF THE SPIRAL SPACER, SAID CORRUGATION HAVING A CREST PORTION WHICH IS LOCATED AT A SUBSTANTIALLY GREATER RADIUS FROM THE INNER CONDUCTOR THAN IS SAID VALLEY PORTION AND WHICH IS DOME-SHAPED IN LONGITUDINAL SECTION OF THE OUTER CONDUCTOR, WHEREBY THE INNER SURFACE OF SAID CREST PORTION IS CONCAVE, SAID TURNS OF THE SPIRAL SPACER HAVING THEIR OUTER EDGE LOCATED ENTIRELY IN SAID CORRUGATION AND SEATED AGAINST SAID CONCAVE INNER SURFACE OF THE CREST PORTION TO HOLD SAID INNER AND OUTER CONDUCTORS IN FIXED SPACED RELATION TO EACH OTHER.
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1 Claim
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1. IN A COAXIAL CABLE, THE COMBINATION OF AN ELECTRICALLY CONDUCTIVE BAR INNER CONDUCTOR OF CIRCULAR CROSS-SECTION, AN ELECTRICALLY INSULATING SPACER OF SUBSTANTIALLY RECTANGULAR CROSS-SECTION SPIRALLING AROUND THE BARE INNER CONDUCTOR WITH THE LONGER DIMENSION OF SAID CROSS-SECTION EXTENDING SUBSTANTIALLY RADIALLY OF THE INNER CONDUCTOR, THE SPIRAL SPACER FORMING A HELIX HAVING ITS TURNS SPACED ALONG SAID INNER CONDUCTOR WITH THE INNER EDGE OF THE TURNS ENGAGING THE BARE INNER CONDUCTOR AROUND THE PERIPHERY THEREOF TO HOLD SAID INNER CONDUCTOR AGAINST RADIAL DISPLACEMENT WITHIN THE TURNS, AND A SOLID-WALLED TUBULAR ELECTRICALLY CONDUCTIVE OUTER CONDUCTOR SURROUNDING THE BARE INNER CONDUCTOR IN SPACED RELATION THERETO AND HAVING AN OUTWARDLY PROTRUDING CORRUGATION SPIRALLING AROUND SAID INNER CONDUCTOR IN SPACED TURNS, THE OUTER CONDUCTOR ALSO HAVING A VALLEY PORTION SPIRALLING AROUND SAID INNER CONDUCTOR IN SPACED RELATION THERETO AND IN SPACED TURNS WHICH SEPARATE SAID CORRUGATION TURNS AND WHICH ARE LOCATED BETWEEN SAID TURNS OF THE SPIRAL SPACER, SAID CORRUGATION HAVING A CREST PORTION WHICH IS LOCATED AT A SUBSTANTIALLY GREATER RADIUS FROM THE INNER CONDUCTOR THAN IS SAID VALLEY PORTION AND WHICH IS DOME-SHAPED IN LONGITUDINAL SECTION OF THE OUTER CONDUCTOR, WHEREBY THE INNER SURFACE OF SAID CREST PORTION IS CONCAVE, SAID TURNS OF THE SPIRAL SPACER HAVING THEIR OUTER EDGE LOCATED ENTIRELY IN SAID CORRUGATION AND SEATED AGAINST SAID CONCAVE INNER SURFACE OF THE CREST PORTION TO HOLD SAID INNER AND OUTER CONDUCTORS IN FIXED SPACED RELATION TO EACH OTHER.
Specification
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Current AssigneeHeinz Hahne Karl
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Original AssigneeHeinz Hahne Karl
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InventorsHEINZ HAHNE KARL
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Application NumberUS04/109,469Time in Patent Office1,285 DaysField of SearchUS Class Current174/29CPC Class CodesH01B 11/1873 Measures for the conductors...
