Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5049178 | Partial press apparatus and method for glass sheet bending | John D. Kellar | 1991-09-17 |
| 4988398 | Laminate prepress roll assembly | John D. Kellar | 1991-01-29 |
| 4511386 | Deformable vacuum holder used to shape glass sheets | John D. Kellar | 1985-04-16 |
| 4511387 | Vacuum holder with anti-bulging means used to shape glass sheets | John D. Kellar | 1985-04-16 |
| 4483701 | Cooling vacuum holder by suction fluid flow | John D. Kellar | 1984-11-20 |
| 4483703 | Deformable vacuum holder with helical coil springs for shaping glass | John D. Kellar | 1984-11-20 |
| 4349375 | Deformable vacuum mold for shaping glass sheets | John D. Kellar | 1982-09-14 |
| 4325723 | Transferring rigid sheets from one conveyor to another | John D. Kellar | 1982-04-20 |
| 4311503 | Method of controlling temperature of glass exiting furnaces | John D. Kellar | 1982-01-19 |
| 4297118 | Controlling overheating of vacuum mold used to shape glass sheets | John D. Kellar | 1981-10-27 |
| 4278193 | Glass breaking and separating apparatus and method | John D. Kellar | 1981-07-14 |
| 4277276 | Method and apparatus for shaping glass sheets using deformable vacuum mold | John D. Kellar | 1981-07-07 |