A relatively simple, collapsible garbage bag holder of the type for use outdoors includes an annular frame with a outer peripheral groove therein for receiving a split ring, which is used to releasably retain the top end of a garbage bag on the frame, legs releasably connected to the frame for holding...http://www.google.es/patents/US5193770?utm_source=gb-gplus-sharePatente US5193770 - Bag holder
