A portable male urinal assembly includes a conventional portable male urinal, having a urine receiving reservoir and a spout extending therefrom with an inlet in the spout for receiving the urine, and a urinal attachment having a valve assembly contained therein being secured in fluid communication to...http://www.google.fr/patents/US6163892?utm_source=gb-gplus-shareBrevet US6163892 - Portable male urinal
