Heating and shaping system using microwave focused beam heating

US9108875B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9108875-B2
Application numberUS-201313905365-A
CountryUS
Kind codeB2
Filing dateMay 30, 2013
Priority dateMay 30, 2013
Publication dateAug 18, 2015
Grant dateAug 18, 2015

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  2. Abstract

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Abstract

Official abstract text for this publication.

A furnace for shaping glass sheets for aircraft transparencies using the cut-to-size method includes a preheat and cooling furnace defined as a first furnace, and a shaping furnace. A conveyor geared for reciprocating movement moves a bending iron supporting a glass sheet through the first furnace set to a preheat temperature. The glass sheet supported on the bending iron is heated in the shaping furnace by microwave beams from a gyrotron to heat portions of the glass sheet to be shaped to a complex shape. After the sheet is shaped, the conveyor moves the bending iron supporting the shaped glass sheet from the shaping furnace through the first furnace set to a cooling cycle.

First claim

Opening claim text (preview).

What is claimed is: 1. A furnace for shaping glass sheets for aircraft transparencies, the furnace comprising: a preheat and cooling furnace defined as a first furnace, the first furnace comprising: a first sidewall, an opposite second sidewall, a top wall, an opposite bottom wall, a first opening and an opposite second opening; a door for covering the first opening of the first furnace; a first plurality of spaced stub conveyor rolls mounted on the first sidewall and a secon…

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What does patent US9108875B2 cover?
A furnace for shaping glass sheets for aircraft transparencies using the cut-to-size method includes a preheat and cooling furnace defined as a first furnace, and a shaping furnace. A conveyor geared for reciprocating movement moves a bending iron supporting a glass sheet through the first furnace set to a preheat temperature. The glass sheet supported on the bending iron is heated in the shapi…
Who is the assignee on this patent?
Ppg Ind Ohio Inc, Ppg Ind Ohio Inc
What technology area does this patent fall under?
Primary CPC classification C03B23/0235. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Aug 18 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).