Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5607189 | Rotary joint for pressurized fluids | — | 1997-03-04 |
| 4961762 | Structurally reinforced, self-aligning panel filter apparatus with associated clamping, face sealing and backflushing structure | — | 1990-10-09 |
| 4823731 | Multiple filter/cyclone air filtration apparatus with single, movable filter cleaning system | — | 1989-04-25 |
| 4802983 | Hopper loading directly insertable horizontally mounted cylindrical segmented bore pleated filter system for rotary broom sweepers | — | 1989-02-07 |
| 4775398 | Structurally improved filter housing and mounting apparatus | — | 1988-10-04 |
| 4756727 | Horizontally mounted cylindrical segmented bore pleated filter system for rotary broom sweepers | — | 1988-07-12 |
| 4749192 | Fluid coupling construction for non-pressure balanced fluid conducting swivel joints | — | 1988-06-07 |
| 4740221 | Air filter apparatus with modularized self-cleaning filter system | — | 1988-04-26 |
| 4708723 | Rotary broom sweeper hopper | — | 1987-11-24 |
| 4690700 | Backflushed air filters with quick opening multiple discharge valve | — | 1987-09-01 |
| 4690166 | Pressure dependent dust control filter compressed air reversed flushing control system | — | 1987-09-01 |
| 4681609 | Top loading and inverted backflushed air filter systems | — | 1987-07-21 |
| 4679604 | Shear blade cutting device with adjusting blade alignment compensator | — | 1987-07-14 |
| 4661131 | Backflushed air filters | — | 1987-04-28 |
| 4650504 | Hopper loading directly insertable horizontally mounted cylindrical segmented bore pleated filter system for rotary broom sweepers | — | 1987-03-17 |
| 4637825 | Filter system for power sweeper | — | 1987-01-20 |
| 4544389 | Multiple jet backflushed air filter | — | 1985-10-01 |
| 4521232 | Air filter unit with multiple filter chambers and particulate material collection hoppers | — | 1985-06-04 |
| 4482367 | Self-cleaning air filter system | — | 1984-11-13 |
| 4444280 | Drill cuttings conveying apparatus with flexible duct for improved ground clearance | — | 1984-04-24 |
| 4440243 | Drill cuttings conveying head with wet cuttings diverter | — | 1984-04-03 |
| 4434861 | Dust conveying and collecting system and method | — | 1984-03-06 |