Multipartite mold for expansible material

Claim 1

A MULTIPARTITE MOLD FOR PRODUCING A MOLDED ARTICLE FROM EXPANSIBLE MATERIAL, COMPRISING AN ASSEMBLY OF A PLURALITY OF SUBSTANTIALLY FLAT SIDE WALL MEMBERS, A BASE MEMBER AND A COVER MEMBER MOVABLY CONNECTED TO EACH OTHER AND DEFINING AN ENCLOSED MOLD CAVITY, SAID BASE MEMBER HAVING LUG MEANS SECURED THERETO EXTERNAL TO SAID MOLD CAVITY FOR GUIDING AND SUPPORTING SAID MOVABLY CONNECTED SIDE WALL MEMBERS, ADJACENT ONES OF SAID SIDE WALL MEMBERS, SAID BASE AND SAID COVER MEMBERS BEING MOVABLE RELATIVE TO EACH OTHER FROM POSITIONS RESPECTIVELY IN WHICH SAID MOLD CAVITY HAS A MINIMAL VOLUME TO POSITIONS RESPECTIVELY IN WHICH SAID MOLD CAVITY HAS A MAXIMAL VOLUME, SAID MOLD CAVITY HAVING ITS MINIMAL VOLUME IN AN UPRIGHT POSITION OF SAID ASSEMBLY AND BEING CHARGEABLE WITH EXPANSIBLE MATERIAL IN SAID UPRIGHT POSITION, SAID SIDE WALL MEMBERS BEING AUTOMATICALLY MOVABLE BY THE EXPANSION OF SAID MATERIAL TO RESPECTIVE POSITIONS IN WHICH SAID MOLD CAVITY HAS A MAXIMAL VOLUME, SAID COVER MEMBER BEING REMOVABLE FROM SAID ASSEMBLY AND SAID ASSEMBLY BEING INVERTIBLE FROM SAID UPRIGHT POSITION, SAID COVER MEMBER HAVING FORMED THEREIN APERTURES INTO WHICH SAID LUG MEANS EXTEND, SAID APERTURES BEING OF THE SIZE PERMITTING FREE MOVEMENT OF SAID LUG MEANS THEREIN, WHEREBY A MOLDED ARTICLE MAY BE RELEASED FROM SAID MOLD CAVITY WHEN SAID COVER MEMBER IS REMOVED AND SAID ASSEMBLY IS INVERTED WITHOUT DISCONNECTING SAID BASE MEMBER AND SAID SIDE WALL MEMBERS.