The noise received by the unused connectors limits the accuracy of a device for measuring the leakage from a piece of electronic medical equipment. To reduce noise the device is surrounded by a Faraday shield which encloses unused connectors of the device. The shielded connector includes a post ...http://www.google.co.uk/patents/US5814996?utm_source=gb-gplus-sharePatent US5814996 - Leakage detector having shielded contacts