An environmental conditioning and safety system for use with disk-type mass memories includes a barometric sensor, a replaceable desiccant cartridge, a finned heat sink cover plate, a breather filter, check valving and a flow restrictor. The system is especially suited for use in harsh environments,...http://www.google.com.au/patents/US4642715?utm_source=gb-gplus-sharePatent US4642715 - Environmental conditioning and safety system for disk-type mass memories
