Patent · US Expired

Refining chamber made of platinum group metal materials

US7490487B2 · kind B2 · utility

4Cited by

2References

10Claims

0Family size

Assignees

UMICORE AG & CO. KG · DE
ASAHI GLASS CO., LTD. · JP

Inventors

Rudolf Singer · Engelstadt, DE
Hubertus Golitzer · Alzenau, DE

Key dates

Filing date	Oct 23, 2003
Grant date	Feb 17, 2009
Priority date	—
Expiry date	Jan 30, 2025

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P40/57
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

In some embodiments, the invention provides a refining chamber for glass production, made of platinum group metal materials, with improved refining effectiveness. The refining chamber according has the shape of a tube with a cross section (1), with the cross section of the tube being shaped, in at least one segment, so that in the operating position the length (10) of a horizontal line (12) which divides the surface of the cross section into essentially a lower and an upper segment of the surface, both of which have essentially the same area, is greater than twice the maximum vertical extent (30) of the lower segment of the surface. The cross section of the refining chamber can, for example, have the shape of an oval, an ellipse, a slot, a rounded triangle or a polygon, and the stiffness of the shape of the refining chamber can be increased by forming radially peripheral creases, corners, waves or folds.

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