Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4895228 | Slack adjuster | Keith W. Langley | 1990-01-23 |
| 4875559 | Tread brake unit | Keith W. Langley | 1989-10-24 |
| RE32610 | Electric actuators | Howard F. Cogan | 1988-02-23 |
| 4651852 | Electrically-controlled actuators | David J. Wickham, Howard F. Cogan | 1987-03-24 |
| 4589531 | Force applying system combining direct and spring-applied electric actuators | — | 1986-05-20 |
| 4572586 | Brake system incorporating a stepping motor | — | 1986-02-25 |
| 4546296 | Electric actuators | Howard F. Cogan | 1985-10-08 |
| 4546298 | Electric actuators | David J. Wickham, Howard F. Cogan | 1985-10-08 |
| 4546295 | Electric actuators | David J. Wickham, Howard F. Cogan | 1985-10-08 |
| 4546297 | Electric actuators | Howard F. Cogan | 1985-10-08 |
| 4532462 | Electric actuators | Howard F. Cogan | 1985-07-30 |
| 4498711 | Pneumatic control for braking system providing snow brake operation | Keith W. Langley | 1985-02-12 |
| 4264110 | Train braking apparatus | David J. Wickham | 1981-04-28 |
| 4206949 | Continuous quick service valves for braking systems | Clive A. Rathband, David J. Wickham | 1980-06-10 |
| 4203353 | Piston means for piston-cylinder arrangements | Jack Burnham | 1980-05-20 |