Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6234490 | Leakfree pumpback packing | — | 2001-05-22 |
| 6220604 | Self-adjusting interlocking bushing | — | 2001-04-24 |
| 5419568 | Method and apparatus for reducing packing ring spin for trapezoidally shaped mechanically braided packing | — | 1995-05-30 |
| 5022660 | Lantern ring coil | Joseph R. Dunford, Milton Sylvia | 1991-06-11 |
| 5013053 | Universal seal cage lantern ring with double-sided slotted land structure | — | 1991-05-07 |
| 4949620 | Edge-reinforced packing for use in steam service | Charles F. Swan | 1990-08-21 |
| 4802398 | Diagonally reinforced mechanical packing | Charles F. Swan | 1989-02-07 |
| 4729277 | Shaped mechanical compression packing | — | 1988-03-08 |
| 4672879 | Shaped mechanical compression packing | — | 1987-06-16 |
| 4550639 | Shaped mechanical compression packing | — | 1985-11-05 |