Patent · US Expired

Method for bending glass sheets

US4909819A · kind A · utility

9Cited by
4References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 19, 1989
Grant dateMar 20, 1990
Priority date
Expiry dateJun 19, 2009

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC03B27/0442
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

A method for bending glass sheets is disclosed in which a heated glass sheet (12) is introduced between spaced upper and lower bending platens (16,18). Heat source (19), integral with platen (18), is operable for applying heat in close proximity to the glass sheet (12) between the platens (16,18) to maintain an optimal bending temperature and the glass sheet (12) is bent such that a specific geometric orientation of the bend on the glass sheet (12) is controllable and repeatedly reproducible during a production operation.

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