Glass manufacturing – Processes – Reshaping or surface deformation of glass preform
Patent
1979-11-27
1981-09-29
Kellogg, Arthur D.
Glass manufacturing
Processes
Reshaping or surface deformation of glass preform
65106, 65107, 65268, 65273, C03B 23025
Patent
active
042920655
ABSTRACT:
A method and apparatus are described for bending sheets in the plastic state, such as sheets of glass at their softening temperature, in two directions. The apparatus comprises a first bed of arcuate rods which can be positioned to impart a transverse curvature to the sheet and a second bed of arcuate rods which can be positioned to impart a longitudinal curvature to the sheet. Advantageously the bending is performed in a heated enclosure at a temperature at least equal to that at which the sheet is later tempered.
REFERENCES:
patent: 3409422 (1968-11-01), Gulotta
patent: 3545951 (1970-12-01), Nedelec
patent: 3778244 (1973-12-01), Nedelec et al.
patent: 3782916 (1974-01-01), Powell et al.
patent: 3799752 (1974-03-01), Cheron
patent: 3801298 (1974-04-01), Bezombes
patent: 3831239 (1974-08-01), Hoff et al.
patent: 4015968 (1977-04-01), Reuells et al.
patent: 4054437 (1977-10-01), Ueberwolf et al.
patent: 4054438 (1977-10-01), Presta
patent: 4123246 (1978-10-01), Johnson
patent: 4139359 (1979-02-01), Johnson et al.
patent: 4210434 (1980-07-01), Galindez
Nedelec Maurice
Presta Claude
Vitoux Francois
Kellogg Arthur D.
Saint Gobain Industries
LandOfFree
Method and apparatus for shaping thermoplastic sheet material does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for shaping thermoplastic sheet material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for shaping thermoplastic sheet material will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1232306