Inventor
EWING JOHN J
US20 patents
Patents
20 patentsUS4662925AMay 5, 1987
Horizontal press bending of heat softened glass sheets
PPG INDUSTRIES INC70 citations95
US5118335AJun 2, 1992
Tempering ring design
PPG INDUSTRIES INC25 citations92
US4661139AApr 28, 1987
Vacuum pressing of glass doublets
PPG INDUSTRIES INC27 citations92
US4737182AApr 12, 1988
Glass sheet press support and alignment systems
PPG INDUSTRIES INC38 citations91
US4666496AMay 19, 1987
Shuttling support frame for vacuum pickup
PPG INDUSTRIES INC30 citations91
US4666492AMay 19, 1987
Method and apparatus for shaping glass sheets
PPG INDUSTRIES INC41 citations91
US4556408ADec 3, 1985
Dual ring segmented block tempering ring
PPG INDUSTRIES INC22 citations82
US4526605AJul 2, 1985
Vacuum mold for shaping glass sheets
PPG INDUSTRIES INC26 citations82
US4501603AFeb 26, 1985
Method and apparatus for shaping glass sheets to complicated shapes
PPG INDUSTRIES INC24 citations82
US4430110AFeb 7, 1984
Shaping sheets of glass or other deformable material to a compound curvature
PPG INDUSTRIES INC24 citations82
US4556407ADec 3, 1985
Tempering ring with pivoting glass sheet support member
PPG INDUSTRIES INC20 citations79
US4525196AJun 25, 1985
Glass sheet handling devices
PPG INDUSTRIES INC23 citations78
US4579573AApr 1, 1986
Forming glass sheets of specialized asymmetric configurations
PPG INDUSTRIES INC9 citations74
US4483702ANov 20, 1984
Multiple chamber vacuum holder used to shape glass sheets with means to isolate adjacent vacuum chambers
PPG INDUSTRIES INC19 citations74
US4470835ASep 11, 1984
Shaping sheets of glass or other deformable material to a complicated curvature
PPG INDUSTRIES INC17 citations74
US4539031ASep 3, 1985
Apparatus for press shaping hot glass sheets
PPG INDUSTRIES INC10 citations73
US4487623ADec 11, 1984
Method of and apparatus for removing sharply bent glass sheets from press bending molds
PPG INDUSTRIES INC13 citations73
US4430111AFeb 7, 1984
Method and apparatus to remove sharply bent, tempered glass sheets from a cooling station
PPG INDUSTRIES INC11 citations73
US4331464AMay 25, 1982
Glass sheet support of ring-like configuration
PPG INDUSTRIES INC6 citations62
US4488892ADec 18, 1984
Pivotal shaped auxiliary gas heater for glass sheet shaping molds
PPG INDUSTRIES INC1 citations52