Crimped coaxial cable connection with knurled extension

Claim 1

IN A COAXIAL CONNECTOR ASSEMBLY INCLUDING A CONNECTOR AND A COAXIAL CABLE OF THE TYPE HAVING AN OUTER CONDUCTOR COMPRISED OF SPIRALLY WOVEN AND BRAIDED METALLIC STRANDS SURROUNDING AN INNER CONDUCTOR AND SPACED THEREFROM BY A DIELECTRIC SHEATH, A CONNECTOR BODY INCLUDING A METALLIC TUBULAR MEMBER HAVING A DIELECTRIC INSERT THEREIN CARRYING A CENTER CONTACT MEMBER, SAID BODY INCLUDING A REAR CONDUCTIVE SLEEVE EXTENSION AND A MALLEABLE FERRULE MEMBER ADAPTED TO BE FITTED OVER SAID SLEEVE EXTENSION, THE SAID CABLE BEING ATTACHED TO SAID CONNECTOR WITH THE INNER CONDUCTOR THEREOF FITTED WITHIN AND TERMINATED TO SAID CENTER CONTACT MEMBER, THE SAID EXTENSION HAVING AN OUTER DIAMETER SLIGHTLY LARGE THAN THE INNER DIAMETER OF SAID OUTER CONDUCTOR AND INCLUDING AN OUTER SURFACE DEFINED BY A SERIES OF FIRST AND SECOND GROOVES DISPOSED THEREON IN A CROSSING RELATIONSHIP TO DEFINE SURFACES OBLIQUE TO EACH OTHER AND A SERIES OF PROJECTING POINTS, SAID GROOVES BEING OF A DEPTH APPROXIMATING THE THICKNESS OF THE STRANDS OF THE SAID OUTER CONDUCTOR, THE SAID FERRULE BEING OF A THICKNESS AND INNER DIAMETER SLIGHTLY LARGER THAN THE OUTER DIAMETER OF SAID EXTENSION WITH THE OUTER CONDUCTOR OF SAID CABLE FITTED THEREOVER AND CRIMPED INWARDLY ALONG THE LENGTH OF SAID EXTENSION TO A POINT WHEREIN THE PROJECTING POINTS DEFINED BY SAID GROOVES ARE ENGAGED BY AND IN CONTACT WITH THE INNER SURFACES OF SAID FERRULE WITH THE STRANDS OF THE OUTER CONDUCTOR OF SAID CABLE FORCED DOWN WITHIN SAID GROOVES AND DEFORMED THEREIN WHEREBY SAID CONNECTOR IS LOCKED MECHANICALLY AND ELECTRICALLY TO SAID CABLE TO RESIST TORSIONAL AND TENSIONAL FORCES TENDING TO SEPARATE SAID CABLE FROM SAID CONNECTOR.