Patent · US Expired

Device and method for liquefying and crystallizing substances

US5997640A · kind A · utility

5Cited by

2References

14Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Thomas Berthold · Munich, DE
Hermann Boedinger · Munich, DE

Key dates

Filing date	Aug 11, 1998
Grant date	Dec 7, 1999
Priority date	—
Expiry date	Aug 11, 2018

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T117/1016
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A multi-shelled melt container is disclosed for liquefying and crystallizing substances which comprises at least an inner shell and a bearing shell. While the inner shell--which has a thin wall in comparison to the wall of the bearing shell--consists of an inert material with respect to the melt, the bearing shell serves exclusively to fixate and support the inner shell and is correspondingly constructed in a mechanically stable fashion. The device can also comprise means to pump the melt over into a collection vessel.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.