Ppg Industries Ohio, Inc.

Joseph G Koepfinger

Yu Jiao

Chao Yu

Robert M Bonaddio

Joseph Medzius

James Franklin Priddy

Dennis D Warren

Russell Willis Schrier

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.

Heating and shaping system using microwave focused beam heating

Growing community of inventors

Pittsburgh, PA, United States of America

Joseph G Koepfinger