Miller; Roy W.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Miller; Roy W..The latest application filed is for "converted multiple hopper rail car and method for making same".
- Miller; Roy W. - Lake County IN
- Miller; Roy W. - Highland IN
- Miller; Roy W. - Stow MA
| Patent | Date |
|---|---|
| Converted multiple hopper rail car and method for making same Grant 6,502,518 - Miller January 7, 2 | 2003-01-07 |
| Sliding hopper outlet gate with plastic upper surface for smooth sliding and for sealing the outlet Grant 5,060,579 - Johnson , et al. October 29, 1 | 1991-10-29 |
| Hatch cover assembly Grant 4,948,185 - Miller August 14, 1 | 1990-08-14 |
| Integrated optic print head Grant 4,897,671 - Mahapatra , et al. January 30, 1 | 1990-01-30 |
| Pneumatic gate operator and outlet cap Grant 4,695,207 - Miller September 22, 1 | 1987-09-22 |
| Hatch cover structure Grant 4,690,070 - Miller September 1, 1 | 1987-09-01 |
| Hatch cover lock Grant 4,655,365 - Miller April 7, 1 | 1987-04-07 |
| Hatch cover and locking structure Grant 4,622,902 - Miller November 18, 1 | 1986-11-18 |
| Cam actuated railway hopper car lock mechanism Grant 4,262,601 - Miller April 21, 1 | 1981-04-21 |
| Railway hopper car door operating mechanism Grant 4,194,450 - Miller March 25, 1 | 1980-03-25 |
| Motor actuated railway hopper car door mechanism Grant 3,949,681 - Miller April 13, 1 | 1976-04-13 |
| Door operating mechanism Grant 3,872,796 - Adler , et al. March 25, 1 | 1975-03-25 |
| Running Board Mounting Bracket Arrangement Grant 3,756,164 - Miller , et al. September 4, 1 | 1973-09-04 |
| Hinged Covered Hopper Car Grant 3,631,816 - Miller January 4, 1 | 1972-01-04 |
| Pneumatic Discharge Arrangement For Hoppers Grant 3,632,174 - Miller January 4, 1 | 1972-01-04 |
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