Fiber glass burial vault

Claim 1

A BURIAL VAULT COMPRISING A RECEPTACLE OF LAYERS OF FIBER GLASS BONDED TOGETHER WITH INTERPOSED SPACED REINFORCING RIBS ALONG AND IN THE SIDES OF THE RECEPTACLE WHICH ALSO RESIST THE UPWARD MOVEMENT OF THE VAULT IN THE EARTH, A COVER, SAID RECEPTACLE AND COVER HAVING ENLARGED CONTACTING EDGE PORTIONS AND AN UPSTANDING FLANGE FITTING WITHIN THE COVER AND AN INTERFITTING GROOVE ON THE RECEPTACLE AND A TONGUE ON THE COVER, SAID RECEPTACLE BEING RELATIVELY SMALL AND LIGHT WITHOUT EXCESSIVE BULK AND WEIGHT, OF MAXIMUM STRENGTH, THE UPPER PORTION OF THE RECEPTACLE BEING ADAPTED TO RECEIVE A PORTION OF THE COVER WHEN INVERTED, AND THE COVER BEING ADAPTED TO RECEIVE A PORTION OF THE EXTERIOR OF THE BOTTOM OF THE RECEPTACLE WHEREBY A GROUP OF RECEPTACLES AND COVERS MAY BE STACKED, THE COVER HAVING A HANDLE LOCATED INWARDLY FROM THE EDGE TO PERMIT THE COVER WHEN INVERTED TO NEST IN THE BODY OF THE RECEPTACLE, AND THE RECEPTACLES AND COVERS BEING OF A SIZE AND CONFIGURATION TO BE COMPACTLY STACKED WITH OTHERS OF LIKE CHARACTER AND SIZE.