Method for molding objects
OwnerJohn K. Goodeninventor
Life of this patent
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Abstract
A sculptor's pressure vessel having a frame, a pressure container and an expandable member for pushing the pressure container against a portion of the frame to seal the container. A pressurized gas supply is connected expandable member to inflate it and to push the pressure container against the top of the frame to seal the pressure container. The pressurized gas supply is also connected to the frame top to pressurize the pressure container when it is in sealed contact with the frame.
Claims13
A method for molding objects comprising the steps of:
- placing a mold containing material to be hardened in a pressure container having an inside, an outside, an opening therein to allow items to be placed in or removed from the pressure container, and a bottom, wherein the container is hingedly connected to a frame having a bottom, a top and at least one side member for housing the pressure container, to allow the pressure container to swing out of the frame to a loading position and into the frame to a housed position;
- closing a lid, said lid connected to said frame and being sized and adapted for covering the pressure container opening to isolate an internal pressure inside the pressure container;
- inflating an expandable means inside said frame between the frame and the lid or between the frame and the bottom of the pressure container when said pressure container is in the housed position for pushing against the frame and the lid or against the frame and the bottom of the pressure container to push the lid and the opening in the pressure container together when the expandable means is expanded to seal the lid against the pressure container, wherein the lid and pressure container are pushed together by pushing the lid or the pressure container away from the frame;
- and
- inserting gas into the pressure container to thereby raise the internal pressure in the pressure container.
A method for holding one or more flexible molds in a pressurized environment while a soft material in the one or more molds begins to harden, comprising:
- placing one or more flexible molds in a pressure vessel having;
- a frame having a bottom, a top and at least one side member, said at least one side member being connected to both the bottom of the frame and to the top of the frame to hold the bottom of the frame a fixed distance from the top of the frame;
- a lid being integral with said frame top;
- a pressure container having an inside, an outside, an opening therein to allow items to be placed in or removed from the pressure container, and a bottom, said pressure container being hingedly connected to said at least one side member to allow the pressure container to swing out of said frame to a loading position or into said frame to a housed position;
- an expandable member inside said frame between said frame bottom and said pressure container when said pressure container is in the housed position for pushing against said frame and said bottom of said pressure container to push the pressure container away from the frame bottom and to push the opening in the pressure container and said lid together to seal the pressure container when the expandable member is expanded;
- a conduit connecting a source of pressurized gas and the lid;
- and a valve in said conduit for selectably increasing an internal pressure in the pressure container when the pressure container is sealed against said lid;
- sealing said pressure container against said lid;
- and
- opening said conduit to insert gas into the pressure container.
Dependencies are inferred from the claim text.