公开(公告)号：US09452948B2

公开(公告)日：2016-09-27

申请号：US14174265

申请日：2014-02-06

Applicant: GLASSTECH, INC.

Inventor： Dean M. Nitschke ,  Jeffrey A. Grzeszczak ,  Ashoka G. Jinka ,  James P. Schnabel, Jr. ,  David B. Nitschke

IPC: C03B23/03 ,  C03B23/025 ,  C03B23/035 ,  C03B35/20

CPC classification number: C03B23/0252 ,  C03B23/025 ,  C03B23/03 ,  C03B23/0302 ,  C03B23/0355 ,  C03B23/0357 ,  C03B35/147 ,  C03B35/202

Abstract: A glass sheet three stage forming station utilizes first and second upper molds and a lower mold to provide three stage forming. The glass is curved on the upper mold in the first stage but retains straight line elements transverse to the curvature. Transfer of the initially formed glass sheet from the first upper mold to the lower mold then provides the second stage of gravity forming and the glass sheet is then press formed between the second upper mold and the lower mold in the third stage which reduces optical distortion in the central viewing area of the formed glass sheet. The glass sheet is moved horizontally on the first upper mold and released onto the lower mold.

Abstract translation: 玻璃板三段成型台利用第一和第二上模和下模提供三段成型。 玻璃在第一阶段的上模具上弯曲，但是保持横向于曲率的直线元件。 将初始形成的玻璃板从第一上模转移到下模，然后提供第二重力成形阶段，然后在第三阶段中将第二上模和下模之间的玻璃板压制成形，这减少了光学变形 形成的玻璃板的中央观察区域。 玻璃板在第一上模上水平移动并释放到下模上。

公开(公告)号：US10246364B2

公开(公告)日：2019-04-02

申请号：US15245686

申请日：2016-08-24

Applicant: GLASSTECH, INC.

Inventor： Dean M. Nitschke ,  Jeffrey A. Grzeszczak ,  Ashoka G. Jinka ,  James P. Schnabel, Jr. ,  David B. Nitschke

IPC: C03B23/025 ,  C03B23/035 ,  C03B23/03 ,  C03B35/14 ,  C03B35/20

Abstract: A glass sheet forming method utilizes first and second upper molds and a lower mold to provide three stage forming. The glass is curved on the upper mold in the first stage but retains straight line elements transverse to the curvature. Transfer of the initially formed glass sheet from the first upper mold to the lower mold then provides the second stage of gravity forming and the glass sheet is then press formed between the second upper mold and the lower mold in the third stage which reduces optical distortion in the central viewing area of the formed glass sheet. In one embodiment the glass sheet is moved horizontally on the lower mold, and in another embodiment the glass sheet is moved horizontally on the first upper mold.