Inventor

SCHWENNINGER RONALD L

US23 patents

⚠️ This page may combine multiple inventors who share the name “SCHWENNINGER RONALD L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SCHWENNINGER RONALD L

PPG INDUSTRIES INC

Method of measuring temperature of a sheet with a noncontacting-type pyrometer

Melting and vacuum refining of glass or the like and composition of sheet

Method of vacuum refining of glassy materials with selenium foaming agent

Vacuum refining of glassy materials with controlled foaming

Glass melter exhaust duct cleaning method and apparatus

Vacuum refining of glass or the like with enhanced foaming

Induction heating vessel

Flow control means for molten glass or the like

Lamination of oxide dispersion strengthened platinum and alloys

Metering device for molten glass and the like

Float glass forming chamber with horizontal heating elements

Movable submersible dam barrier for use in a glass forming chamber

Mixer for use in glass melting furnace

Apparatus for coating continuously advancing substrate

Method and apparatus for making molten glass

Transition between batch preheating and liquefying stages apparatus

Measuring glass surface temperature during annealing

Compressed, wedged float glass bottom structure

Pulsed pressure method for vacuum refining of glassy materials

Refractory clad lid for heating vessel

Float glass forming chamber with cast roof

Gas cushioned ice skate edge stretcher

PPG IND OHIO INC

Method of reducing redox ratio of molten glass and the glass made thereby