Robert Gagne

45403619, Sep 10, 1985

Jan 30, 1984

6/575092

Robert Gagne - New Kensington PA

PPG Industries, Inc. - Pittsburgh PA

F24H 700
F27D 1700

432 30

Pneumatic control of flow patterns in regenerators is improved by the use of flow amplifier nozzles.

41742079, Nov 13, 1979

Jul 26, 1978

5/928046

Robert Gagne - New Kensington PA

PPG Industries, Inc. - Pittsburgh PA

C03B 1802

65 99A

A method and apparatus for the formation of flat glass are disclosed. The invention involves the utilization of transversely inclined barriers in the molten metal bath of a flat glass forming chamber to create asymmetric currents in said bath.

41749561, Nov 20, 1979

Jul 26, 1978

5/928047

Robert Gagne - New Kensington PA

PPG Industries, Inc. - Pittsburgh PA

C03B 1802

65 99A

A method and apparatus for reducing longitudinal distortion in float glass is disclosed. A beam or barrier having cross-hatched grooves is installed below the advancing float glass ribbon in a float glass-forming chamber. The barrier acts to divert or diffuse laterally the molten metal which is being drawn by interfacial drag with the bottom surface of the glass. The diffusion evens the heat on the undersurface of the glass and reduces glass distortion.

41579089, Jun 12, 1979

Sep 1, 1978

5/939142

Robert Gagne - New Kensington PA

PPG Industries, Inc. - Pittsburgh PA

C03B 1802

65 99A

Method and apparatus for achieving other than equilibrium thickness of float glass is disclosed. The thickness of the float glass is regulated by applying a rotating, toothed cylindrical member to the upper surface of molten glass as it moves on a molten metal bath. The cylindrical member preferably has teeth in a worm arrangement and is utilized with its axis parallel to a plane normal to the glass surface and extending in the direction of the movement of the glass ribbon.

41971060, Apr 8, 1980

Sep 11, 1978

5/941826

Thomas R. Trevorrow - Ford City PA
Robert Gagne - New Kensington PA
Joseph A. Gulotta - New Kensington PA

PPG Industries, Inc. - Pittsburgh PA

C03B 1802

65 99A

A method and apparatus for the controlling of longitudinal distortion of float glass is disclosed. It is disclosed that longitudinal distortion may be reduced by asymmetric cooling beneath the molten metal bath of a float glass forming chamber.

45276170, Jul 9, 1985

Sep 30, 1983

6/538056

Robert Gagne - New Kensington PA

PPG Industries, Inc. - Pittsburgh PA

F28D 1700

165 94

Regenerator packing members are constructed and arranged to form tapered passageways interconnecting regenerator flues to induce transverse flow of gas between flues for increased heat transfer. A preferred embodiment includes parallelepiped bricks arranged in an open basketweave pattern, with spaces between brick ends and side faces defining the tapered passageways.