Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5568843 | Precision linear mechanical lock | Calvin R. Stringer | 1996-10-29 |
| 5441129 | Precision linear mechanical lock | Calvin R. Stringer | 1995-08-15 |
| 5429217 | Hydraulic positioner with integral continuously adjustable stroke limiter | Calvin R. Stringer | 1995-07-04 |
| 5219045 | Linear mechanical lock with one-piece lock housing | George V. Babiciuc | 1993-06-15 |
| 5211379 | Continuously self-compensating hydraulic positioner | — | 1993-05-18 |
| 5157826 | Method for making linear mechanical lock with one-piece lock housing | George V. Babiciuc | 1992-10-27 |
| 5150771 | Coil spring or friction-lock mechanisms | — | 1992-09-29 |
| 4577730 | Mechanical lock | — | 1986-03-25 |
| 4515034 | Control mechanism for hydraulic locking device | — | 1985-05-07 |
| 4480729 | Anti-surge valve for hydraulic locking device | — | 1984-11-06 |
| 4457406 | Improved friction lock | — | 1984-07-03 |
| 4425987 | Dual rotating mechanical lock | — | 1984-01-17 |
| 4411339 | Friction lock mechanisms | — | 1983-10-25 |
| 4354398 | Control mechanism for hydraulic locking device | — | 1982-10-19 |