Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5646453 | Digital dimming and flashing circuit for locomotive ditch lights | Robert A. Livsey | 1997-07-08 |
| 5534733 | Digital dimming and flashing circuit for locomotive ditch lights | Robert A. Livsey | 1996-07-09 |
| 5407154 | Hot bearing simulator | Walter N. Arth, Jr. | 1995-04-18 |
| 5292090 | Simulator for railroad hot wheel detector | Walter N. Arth, Jr. | 1994-03-08 |
| 4989084 | Airport runway monitoring system | — | 1991-01-29 |
| 4949070 | Locomotive lubrication level monitor | — | 1990-08-14 |
| 4862094 | Stroboscopic light circuit diagnostic system | Robert A. Livsey | 1989-08-29 |
| 4577511 | Air line pressure tester | — | 1986-03-25 |
| 4516645 | Load checking arrangement for a center-loaded type load cell | — | 1985-05-14 |
| 4413691 | Sheave block weighing assembly | — | 1983-11-08 |
| 4363368 | Medical patient weighing scale | Christopher M. Paddon | 1982-12-14 |
| 4213115 | Visual warning signal for a locomotive | — | 1980-07-15 |