Patent · US Expired

Method and an apparatus for bending a glass sheet

US6705116B2 · kind B2 · utility

6Cited by
6References
12Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 23, 2002
Grant dateMar 16, 2004
Priority date
Expiry dateDec 23, 2022

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC03B35/202
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

In a method for bending a glass sheet, comprising using a first mold for supporting a peripheral portion of a glass sheet and a second mold provided inside the first mold; heating the glass sheet put on the first mold to a temperature to bend the glass sheet by gravity; and then transferring the glass sheet onto the second mold to bend the glass sheet only by the second mold, the glass sheet is transferred from the first mold onto the second mold by moving the first mold in a direction to spread the first mold laterally with respect to the second.

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