Apparatus for producing foamed plastic materials and novel control

Claim 1

APPARATUS FOR PRODUCING FOAMED PLASTIC MATERIAL COMPRISING A PLURALITY OF MEANS FOR SEPARATELY STORING A PLURALITY OF MATERIALS BEING REACTANTS WHICH WHEN IN ADMIXTURE WITH EACH OTHER ARE CAPABLE OF BEING REACTED TOGETHER FOR THE PRODUCTION OF A REACTING MASS ACCOMPANIED BY THE EVOLUTION OF A GASEOUS COMPONENT IN THE COURSE OF THE ULTIMATE PRODUCTION OF SAID FOAMED PLASTIC MATERIAL THEREFROM, SECOND MEANS WHEREIN THERE IS INITIATED SAID REACTION ACCOMPANIED BY THE EVOLUTION OF SAID GASEOUS COMPONENT, MEANS CONNECTED TO SAID PLURALITY OF STORAGE MEANS AND TO SAID SECOND MENTIONED MEANS FOR CONDUCTING SAID MATERIALS FROM SAID PLURALITY OF STORAGE MEANS INTO SAID SECOND MEANS, RECEIVING MEANS IN WHICH SAID MASS IS ULTIMATELY CONVERTED INTO SAID FOAMED PLASTIC MATERIAL, CONTROL MEANS, MEANS FOR CONDUCTING SAID REACTING MASS FROM SAID SECOND MEANS TO SAID CONTROL MEANS, MEANS FOR CONDUCTING SAID REACTING MASS FROM SAID CONTROL MEANS TO SAID RECEIVING MEANS, SAID CONTROL MEANS INCLUDING A WALL FLEXIBLE TOWARDS AND AWAY FROM ANOTHER WALL THEREOF IN A PATH TRANSVERSELY OF THE PATH OF TRAVEL THEREBETWEEN OF SAID REACTING MASS IN THE PASSAGE OF SAID REACTING MASS THEREBETWEEN IN RESPONSE TO PRESSURE VARIATIONS EXERTED BY SAID REACTING MASS ON SAID FIRST MENTIONED WALL DURING THE PASSAGE OF SAID REACTION MASS THEREBETWEEN THEREBY TO COMPENSATE FOR SAID VARIATIONS IN PRESSURE FOR AIDING IN EFFECTING SUBSTANTIALLY UNIFORM PREDETERMINED CELL SIZE IN THE FOAMED PLASTIC MATERIAL ULTIMATELY PRODUCED, MEANS FOR APPLYING FLUID PRESSURE TO SAID FIRST MENTIONED WALL IN A DIRECTION TOWARDS SAID OTHER WALL, AND MEANS FOR VARYING SAID PRESSURE.