A child-resistant cap comprises: an inner cap mounted at a vessel inlet of a vessel; an outer cap disposed at an outer circumferential surface of the inner cap so as to perform an idling with the inner cap; a rotation force transmitting portion disposed between the inner cap and the outer cap for transmitting...http://www.google.es/patents/US8157115?utm_source=gb-gplus-sharePatente US8157115 - Child-resistant cap having inner and outer caps and a seal removing unit
Child-resistant cap having inner and outer caps and a seal removing unit
