Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5542684 | Cantilever spring seals for gas isolators | — | 1996-08-06 |
| 5488971 | Blades for isolators | John Waldron | 1996-02-06 |
| 5429153 | Hydraulic actuator for isolators | — | 1995-07-04 |
| 5329970 | Diverter valves | — | 1994-07-19 |
| 5120021 | Isolators | Trevor H. Hearnden | 1992-06-09 |
| 5109883 | Isolator with a hydraulic actuator and with a rotation-trueing coupling for the isolator shaft | — | 1992-05-05 |
| 5099886 | Seals for gas isolators having multiple bias springs | — | 1992-03-31 |
| 4325411 | Seals for gas isolators | — | 1982-04-20 |
| 4298235 | Bearing system for isolators | — | 1981-11-03 |