An receptacle is provided for receiving a fiber optic connector along an optic axis. The receptacle includes a housing having an open end for receiving the fiber optic connector. A pair of shutter members are pivotally mounted on the housing at opposite sides of the open end of the housing for pivotal...http://www.google.es/patents/US6079881?utm_source=gb-gplus-sharePatente US6079881 - Fiber optic connector receptacle assembly
