Issued Patents All Time
Showing 26–46 of 46 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4420838 | Electrode replacement apparatus | Charles S. Dunn | 1983-12-13 |
| 4413970 | Rotary scrapers | — | 1983-11-08 |
| 4409742 | Apparatus for predrying pelletized material | Charles M. Hohman, Mark A. Propster | 1983-10-18 |
| 4409011 | Preheating glass batch | Charles M. Hohman, Mark A. Propster | 1983-10-11 |
| 4401453 | Preheating glass batch | Mark A. Propster, Charles M. Hohman | 1983-08-30 |
| 4400815 | Electrode aligning apparatus | Charles S. Dunn | 1983-08-23 |
| 4397028 | Electrode support mechanism | Charles S. Dunn, Michael D. Hickman | 1983-08-02 |
| 4392310 | Drying apparatus | Charles M. Hohman, Mark A. Propster | 1983-07-12 |
| 4386951 | Method and apparatus for preheating glass batch | Charles M. Hohman, Mark A. Propster | 1983-06-07 |
| 4385918 | Method and apparatus for feeding raw material to an arc furnace | Charles S. Dunn | 1983-05-31 |
| 4382050 | Method for handling heat-softenable batch material | — | 1983-05-03 |
| 4332603 | Method for predrying pelletized material | Charles M. Hohman, Mark A. Propster | 1982-06-01 |
| 4330313 | Preheat hopper agitators | Charles M. Hohman, Mark A. Propster | 1982-05-18 |
| 4330314 | Apparatus and process for predrying and preheating glass batch agglomerates before melting | Mark A. Propster, Charles M. Hohman | 1982-05-18 |
| 4330316 | Method of preheating glass pellets | Charles M. Hohman, Mark A. Propster | 1982-05-18 |
| 4328016 | Method and apparatus for drying glass batch pellets | Charles M. Hohman, Mark A. Propster | 1982-05-04 |
| 4319903 | Method and apparatus for preheating glass batch | Charles M. Hohman, Mark A. Propster | 1982-03-16 |
| 4248615 | Pollution abating, energy conserving glass manufacturing process | Richard K. Henry, Mark A. Propster, Charles M. Hohman | 1981-02-03 |
| 4248616 | Pollution abating, energy conserving glass manufacturing apparatus | Richard K. Henry, Mark A. Propster, Charles M. Hohman | 1981-02-03 |
| 4235618 | Glass manufacturing process employing glass batch pellets | Richard K. Henry, Charles M. Hohman, Mark A. Propster | 1980-11-25 |
| 4212613 | Apparatus for handling heat-softenable batch material | — | 1980-07-15 |