Apparatus for molding powdered materials

Claim 1

AN IMPORVEMENT PRESS FOR COMPACTING POWDERED MATERIALS COMPRISING, IN COMBINATION: A PRESSURE CHAMBER; A FLEXIBLE BAG DISPOSED WITHIN SAID PRESSURE CHAMBER AND ADAPTED TO RECEIVE A GENERALLY CYLINDRICAL CORE DISPOSED AXIALLY OF THE FLEXIBLE BAG, AND IN SPACED RELATION WITH RESPECT TO THE INTERNAL PERIPHERY OF THE FLEXIBLE BAG; A QUANTITY OF POWDERED MATERIAL BEING RECEIVABLE BETWEEN SAID GENERALLY CYLINDRICAL CORE AND THE INTERNAL PERIPHERY OF SAID FLEXIBLE BAG, THEREBY FORMING A SHELL DISPOSED CONCENTRICALLY OF SAID GENERALLY CYLINDRICAL CORE; THE SHELL HAVING A WALL THICKNESS WHICH IS SMALL IN COMPARISION WITH THE DIAMETER OF THE GENERALLY CYLINDRICAL CORE; MEANS FOR CLOSURE SAID PRESSURE CHAMBER AFTER SAID POWDERED MATERIAL HAS BEEN RECEIVED BETWEEN SAID GENERALLY CYLINDRICAL CORE AND THE INTERNAL PERIPHERY OF SAID FLEXIBLE BAG; MEANS FOR EXERTING FLUID PRESSURE UPON SAID FLEXIBLE BAD AND SAID POWDERED MATERIAL; AND EJECTION MEANS DISPOSED AT THE BOTTOM OF SAID PRESSURE CHAMBER; SAID EJECTION MEANS INCLUDING A FLANGE CONTACTABLE WITH SAID GENERALLY CYLINDRICAL CORE AND SHELL; WHEREBY SAID GENERALLY CYLINDRICAL CORE AND SHELL MEY BE RAISED OUT THE PRESSURE CHAMBER AFTER REMOVAL OF SAID MEANS FOR CLOSING SAID PRESSURE CHAMBER AND AFTER THE EXERTION OF SAID FLUID PRESSURE UPON SAID FLEXIBLE BAG AND SAID POWDERED MATERIAL; SAID FLANGE BEING SEATED UPON ANNULAR MEANS DEPENDING FROM THE LOWER PORTION OF SAID PRESSURE CHAMBER DURING SAID EXERTION OF FLUID PRESSUE, THEREBY TRANSMITTING THRUST ARISING FROM SAID FLUID PRESSURE TO THE WALL OF SAID PRESSURE CHAMBER AND RELIEVING SAID EJECTION MEANS OF SUCH THRUST.