Interchangeable container

US7874445B2 · kind B2 · utility

Assignee

• ProMetal RCT GmbH · DE

Inventors

• Rainer Hochsmann · Genderkingen, DE
• Alexander Muller · Steinen, DE
• Uli Schrupp · Diedorf, DE
• Stefan Hühn · Augsburg, DE
• Udo Marschner · Abensberg, DE
• Martin Stachulla · Augsburg, DE

Key dates

• Filing date: Jun 29, 2007
• Grant date: Jan 25, 2011
• Expiry date: Feb 5, 2029

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29C64/153
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

An interchangeable container for a system for building a mold body by forming superimposed layers of granular material, the granular material locally and selectively hardened layer by layer. The container includes a bottom structure that is displaceable in the interior of the container in a direction in parallel with the container side walls and at least one spindle drive having a vertical screw spindle rotatably mounted in a container side of the container, and a spindle screw nut on which the bottom structure is supported. The bottom structure can be lowered step by step in the interior of the container by the spindle drive.