Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4397071 | Method of installing replaceable sleeve in fixed vortex finder | — | 1983-08-09 |
| 4341352 | Method of coal washing at low speed pumping | — | 1982-07-27 |
| 4317716 | Vortex finder and sleeve kit | — | 1982-03-02 |
| 4235363 | Method of installing replacable sleeve in fixed vortex finder | — | 1980-11-25 |
| 4224143 | Construction of shallow dish with tapered orifice for streamlined flow cyclone washing of crushed coal | — | 1980-09-23 |
| 4219409 | Inlet line deflector and equalizer means for a classifying cyclone used for washing and method of washing using deflectors and equalizers | — | 1980-08-26 |
| 4217207 | Continuous method of cleaning a slurry of crushed raw coal | — | 1980-08-12 |