Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5609729 | Apparatus for controlling liquid level in a knot drainer | Douglas L. G. Young | 1997-03-11 |
| 5209822 | Method for controlling liquid level in a knot drainer | Douglas L. G. Young | 1993-05-11 |
| 5197524 | Apparatus and method for feeding steam into the hollow longitudinal staves of a debarking drum | Donald Bryce Johnson | 1993-03-30 |
| 5190160 | Method and apparatus for enhancing transport of knots in a knot drainer | Patrick Murphy, Brian J. Gallagher | 1993-03-02 |
| 5104011 | Self-cleaning feed apparatus | Edward L. Farrar | 1992-04-14 |
| 5053123 | Adjustable valve for varying filtrate composition from filters | Richard L. Smythe, Marcel A. Carboneau | 1991-10-01 |
| 5019123 | Pulp log discharge system for a debarking drum | Edward L. Farrar | 1991-05-28 |