Patent · US Expired

Forehearth

US4854960A · kind A · utility

3Cited by

6References

24Claims

0Family size

Assignee

Kanthal AB · SE

Inventors

Håkan Lindgren · Hallstahammar, SE
Jan-Olof Olsson · Kinna, SE
Martin Knudsen · Moss, NO
Knut Ronningen · Moss, NO

Key dates

Filing date	Jul 5, 1988
Grant date	Aug 8, 1989
Priority date	—
Expiry date	Jul 5, 2008

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC03B7/07
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A forehearth for transport of molten glass, characterized in that cooling surfaces of a material having a high heat conductivity, particularly a metallic material, are disposed in the roof of the forehearth. The metallic material may be an iron-chromium-aluminum alloy having fifteen to thirty percent by weight of chromium, three to twelve percent by weight of aluminum, and a balance of essentially iron.

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