Molding method for plastic bodies

Claim 1

A PROCESS FOR MOLDING IN A MOLD ASSEMBLY HAVING A LOWER MOLD FORMING AN UPWARDLY OPEN CAVITY AND HAVING AN UPPER MOLD WHICH MAY BE MOVED DOWNWARDLY TO A PREDETERMINED FINAL CLOSED POSITION DEFINING A MOLDING ENCLOSURE SPACE, SAID PROCESS INCLUDING PLACING MOLDING COMPONENTS INCLUDING FLEXIBLE COMPRESSIBLE POROUS MATERIAL INTO SAID CAVITY, MOVING SAID UPPER MOLD TOWARD SAID CAVITY TO CONFINE SAID POROUS MATERIAL, RESILIENTLY SEALING AND STOPPING SAID MOVEMENT OF THE UPPER MOLD AT A FIRST POSITION WHICH IS SOMEWHAT ABOVE FINAL CLOSED POSITION TO SUBSTANTIALLY AVOID COMPRESSION OF SAID POROUS MATERIAL, THEREAFTER FILLING SAID SPACE WITH A FREE FLOWING AND IMPREGNATE SAID POROUS MATERIAL, MAINTAINING SAID UPPER MOLD AT SAID FIRST POSITION UNTIL SAID FILLING HAS BEEN SUBSTANTIALLY COMPLETED, AND THEN MOVING SAID UPPER MOLD TO A SECOND POSITION WHICH IS FINAL CLOSED POSITION WHERE SAID SPACE IS REDUCED IN VOLUME AND SIMULTANEOUSLY VENTING AIR AND SURPLUS LIQUID PLASTIC, AND ALLOWING SAID PLASTIC TO HARDEN.