A burial vault (1) designed to hold a standard casket (10), having a dome-like cover unit (2) and a generally rectangular base unit (3), each unit being of the same size so as to mate together around the edges (19,20) at a joint section. The cover unit has a plurality of interconnecting reinforcing ribs...http://www.google.com/patents/US5526616?utm_source=gb-gplus-sharePatent US5526616 - Burial vault
