A coaxial plug-and-socket connection comprising a socket part and a pin part with releasable interlocking of the two parts, wherein during the insertion process a spring element on one of the two connection parts, which is independent of the interlocking element, exerts an axial resistance...http://www.google.fr/patents/US5746619?utm_source=gb-gplus-shareBrevet US5746619 - Coaxial plug-and-socket connector