Patent · US Expired

Apparatus for press-forming molten bodies

US7174745B2 · kind B2 · utility

1Cited by

4References

11Claims

0Family size

Assignee

Schott AG · DE

Inventors

Christian Kunert · Wiesbaden, DE
Andreas Langsdorf · Ingelheim am Rhein, DE
Norbert Greulich-Hickmann · Mainz, DE

Key dates

Filing date	Aug 5, 2002
Grant date	Feb 13, 2007
Priority date	—
Expiry date	Aug 9, 2023

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC03B2215/63
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

An apparatus for press-forming a molten gob made of meltable material, especially of glass or glass ceramics, into a body of specific shape with compression moulds which form with each other a form cavity for receiving the gob. The compression moulds consist at least in the zone of the forming surfaces of an open-pore material and the compression moulds are connected to a pressure gas source in order to produce a gas stream which emerges from the forming surfaces. The open-pore material of the forming surfaces the pores close to the forming surfaces are smaller than the pores remote from the forming surfaces.

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